diff --git a/Cargo.lock b/Cargo.lock
index a741171..9f50d95 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -531,7 +531,7 @@ dependencies = [
  "bevy_color",
  "bevy_core_pipeline",
  "bevy_ecs",
- "bevy_egui 0.40.1",
+ "bevy_egui",
  "bevy_gizmos",
  "bevy_image",
  "bevy_light",
@@ -549,7 +549,7 @@ dependencies = [
  "bevy_window",
  "bytemuck",
  "disqualified",
- "egui 0.34.3",
+ "egui",
  "fuzzy-matcher",
  "image",
  "opener",
@@ -1061,55 +1061,7 @@ dependencies = [
  "bevy_winit",
  "bytemuck",
  "crossbeam-channel",
- "egui 0.34.3",
- "encase",
- "getrandom 0.4.3",
- "image",
- "itertools 0.14.0",
- "js-sys",
- "smithay-clipboard",
- "thread_local",
- "wasm-bindgen",
- "wasm-bindgen-futures",
- "web-sys",
- "webbrowser",
- "wgpu-types",
- "winit",
-]
-
-[[package]]
-name = "bevy_egui"
-version = "0.42.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e99e2d018c7e567a268638d3058e57895e914e5650dcf7bd80a5fead9e6413a9"
-dependencies = [
- "arboard",
- "bevy_app",
- "bevy_asset",
- "bevy_camera",
- "bevy_color",
- "bevy_core_pipeline",
- "bevy_derive",
- "bevy_ecs",
- "bevy_image",
- "bevy_input",
- "bevy_log",
- "bevy_math",
- "bevy_mesh",
- "bevy_picking",
- "bevy_platform",
- "bevy_reflect",
- "bevy_render",
- "bevy_shader",
- "bevy_time",
- "bevy_transform",
- "bevy_ui_render",
- "bevy_utils",
- "bevy_window",
- "bevy_winit",
- "bytemuck",
- "crossbeam-channel",
- "egui 0.36.2",
+ "egui",
  "encase",
  "getrandom 0.4.3",
  "image",
@@ -1324,7 +1276,7 @@ dependencies = [
  "bitflags 2.13.1",
  "bytemuck",
  "futures-lite",
- "guillotiere 0.6.2",
+ "guillotiere",
  "half",
  "image",
  "ktx2",
@@ -2214,17 +2166,6 @@ dependencies = [
  "uuid",
 ]
 
-[[package]]
-name = "bevygraph"
-version = "0.1.0"
-source = "git+https://github.com/tbillington/bevy_debug_view#0d520f5f4e8693166408f082e8d25dd377dabc3e"
-dependencies = [
- "bevy",
- "bevy_egui 0.42.0",
- "indexmap",
- "log",
-]
-
 [[package]]
 name = "bincode"
 version = "1.3.3"
@@ -3041,17 +2982,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a05fbfa222ffb51989d5ccf33e5f7aebfcf96c5023413856b0c3618a7f79896e"
 dependencies = [
  "bytemuck",
- "emath 0.34.3",
-]
-
-[[package]]
-name = "ecolor"
-version = "0.36.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0656a7530b9e2841ee7a5f983965bdd9840c32f4012f759cfd44b912cced6b34"
-dependencies = [
- "bytemuck",
- "emath 0.36.2",
+ "emath",
 ]
 
 [[package]]
@@ -3063,8 +2994,8 @@ dependencies = [
  "accesskit",
  "ahash",
  "bitflags 2.13.1",
- "emath 0.34.3",
- "epaint 0.34.3",
+ "emath",
+ "epaint",
  "log",
  "nohash-hasher",
  "profiling",
@@ -3073,23 +3004,17 @@ dependencies = [
 ]
 
 [[package]]
-name = "egui"
-version = "0.36.2"
+name = "egui_extras"
+version = "0.34.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc938cc27cd911415e1e4d151bc56ff9df063d8db081374e87aeb805ea74b2ba"
+checksum = "598d8675f6fd9088db8a93d8c7aacda936b2f3d0c2b0660ad1744a45b5caf922"
 dependencies = [
- "accesskit",
  "ahash",
- "bitflags 2.13.1",
- "emath 0.36.2",
- "epaint 0.36.2",
- "itertools 0.15.0",
+ "egui",
+ "enum-map",
  "log",
- "nohash-hasher",
+ "mime_guess2",
  "profiling",
- "smallvec",
- "unicode-segmentation",
- "web-sys",
 ]
 
 [[package]]
@@ -3107,15 +3032,6 @@ dependencies = [
  "bytemuck",
 ]
 
-[[package]]
-name = "emath"
-version = "0.36.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52c8d4141cf0f60fb2f7aefaf352d3ffa5171ef0ab09731c64391801e95e48f1"
-dependencies = [
- "bytemuck",
-]
-
 [[package]]
 name = "ena"
 version = "0.14.4"
@@ -3156,6 +3072,26 @@ dependencies = [
  "syn 2.0.119",
 ]
 
+[[package]]
+name = "enum-map"
+version = "2.7.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6866f3bfdf8207509a033af1a75a7b08abda06bbaaeae6669323fd5a097df2e9"
+dependencies = [
+ "enum-map-derive",
+]
+
+[[package]]
+name = "enum-map-derive"
+version = "0.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f282cfdfe92516eb26c2af8589c274c7c17681f5ecc03c18255fe741c6aa64eb"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+]
+
 [[package]]
 name = "enum_cycling"
 version = "0.2.1"
@@ -3181,9 +3117,9 @@ checksum = "6675898a291ec212fc3df04f537d177fce8496120244590e6359dcaa4c25da79"
 dependencies = [
  "ahash",
  "bytemuck",
- "ecolor 0.34.3",
- "emath 0.34.3",
- "epaint_default_fonts 0.34.3",
+ "ecolor",
+ "emath",
+ "epaint_default_fonts",
  "font-types 0.11.3",
  "log",
  "nohash-hasher",
@@ -3192,32 +3128,7 @@ dependencies = [
  "self_cell",
  "skrifa 0.40.0",
  "smallvec",
- "vello_cpu 0.0.6",
-]
-
-[[package]]
-name = "epaint"
-version = "0.36.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a0ec0308dc23130fc1a7d4623a8534c2ed069c6dc84e258ee4f3de99615aa1a3"
-dependencies = [
- "ahash",
- "bytemuck",
- "ecolor 0.36.2",
- "emath 0.36.2",
- "epaint_default_fonts 0.36.2",
- "font-types 0.12.2",
- "harfrust 0.12.0",
- "log",
- "nohash-hasher",
- "parking_lot",
- "profiling",
- "self_cell",
- "skrifa 0.44.0",
- "smallvec",
- "unicode-general-category",
- "unicode-segmentation",
- "vello_cpu 0.1.0",
+ "vello_cpu",
 ]
 
 [[package]]
@@ -3226,12 +3137,6 @@ version = "0.34.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f8970033a4282a7bcf899b38b5ed3a58b732fe093d03785d58648515d8d309da"
 
-[[package]]
-name = "epaint_default_fonts"
-version = "0.36.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "773fa9c96dd0dbef887e39d0ed6177f141cce4d68e6041df77570aa3702dfa13"
-
 [[package]]
 name = "equivalent"
 version = "1.0.2"
@@ -3324,12 +3229,6 @@ dependencies = [
  "bytemuck",
 ]
 
-[[package]]
-name = "fearless_simd"
-version = "0.4.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b97b65636e5b9ef369943878ac74335ba1c55c1cb6adbf1e2c293c624248d693"
-
 [[package]]
 name = "file-id"
 version = "0.2.3"
@@ -3715,22 +3614,6 @@ dependencies = [
  "simba",
 ]
 
-[[package]]
-name = "glifo"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ed4a1bb24121291d27230c1b1b44e07d6a9b28cefdb32fe1581dfb84e14f940a"
-dependencies = [
- "bytemuck",
- "foldhash 0.2.0",
- "hashbrown 0.17.1",
- "log",
- "peniko",
- "skrifa 0.44.0",
- "smallvec",
- "vello_common 0.1.0",
-]
-
 [[package]]
 name = "glow"
 version = "0.17.0"
@@ -3841,15 +3724,6 @@ dependencies = [
  "svg_fmt",
 ]
 
-[[package]]
-name = "guillotiere"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b17e70c989c36bad147b27a58d148c0741c51448aa5653436547323e524d0ab"
-dependencies = [
- "euclid",
-]
-
 [[package]]
 name = "half"
 version = "2.7.1"
@@ -3876,18 +3750,6 @@ dependencies = [
  "smallvec",
 ]
 
-[[package]]
-name = "harfrust"
-version = "0.12.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c03d949a14aa089bbb282f7dd76a498a7f684428e4257202efc119ec010376f9"
-dependencies = [
- "bitflags 2.13.1",
- "bytemuck",
- "read-fonts 0.41.0",
- "smallvec",
-]
-
 [[package]]
 name = "hash32"
 version = "0.3.1"
@@ -4552,6 +4414,24 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "mime"
+version = "0.3.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6877bb514081ee2a7ff5ef9de3281f14a4dd4bceac4c09388074a6b5df8a139a"
+
+[[package]]
+name = "mime_guess2"
+version = "2.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1706dc14a2e140dec0a7a07109d9a3d5890b81e85bd6c60b906b249a77adf0ca"
+dependencies = [
+ "mime",
+ "phf",
+ "phf_shared",
+ "unicase",
+]
+
 [[package]]
 name = "miniz_oxide"
 version = "0.8.9"
@@ -5370,7 +5250,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8fad031076f48f0d4d85ce1aea9b94b4e715a4d636a030a123038f8f5b5e4343"
 dependencies = [
  "fontique",
- "harfrust 0.6.2",
+ "harfrust",
  "hashbrown 0.17.1",
  "icu_normalizer",
  "icu_properties",
@@ -5497,6 +5377,50 @@ dependencies = [
  "serde_derive",
 ]
 
+[[package]]
+name = "phf"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fd6780a80ae0c52cc120a26a1a42c1ae51b247a253e4e06113d23d2c2edd078"
+dependencies = [
+ "phf_macros",
+ "phf_shared",
+]
+
+[[package]]
+name = "phf_generator"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3c80231409c20246a13fddb31776fb942c38553c51e871f8cbd687a4cfb5843d"
+dependencies = [
+ "phf_shared",
+ "rand 0.8.7",
+]
+
+[[package]]
+name = "phf_macros"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f84ac04429c13a7ff43785d75ad27569f2951ce0ffd30a3321230db2fc727216"
+dependencies = [
+ "phf_generator",
+ "phf_shared",
+ "proc-macro2",
+ "quote",
+ "syn 2.0.119",
+ "unicase",
+]
+
+[[package]]
+name = "phf_shared"
+version = "0.11.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "67eabc2ef2a60eb7faa00097bd1ffdb5bd28e62bf39990626a582201b7a754e5"
+dependencies = [
+ "siphasher",
+ "unicase",
+]
+
 [[package]]
 name = "pin-project"
 version = "1.1.13"
@@ -6272,18 +6196,19 @@ dependencies = [
  "bevy",
  "bevy-inspector-egui",
  "bevy_asset_loader",
- "bevy_egui 0.40.1",
+ "bevy_egui",
  "bevy_ggrs",
- "bevygraph",
  "bincode",
  "blake3",
  "clap",
+ "egui_extras",
  "enum_cycling",
  "enum_cycling_derive",
  "fixed",
  "fixed_math",
  "gc-adapter-neo",
  "gltf",
+ "itertools 0.15.0",
  "rhai",
  "ron",
  "ron_asset_manager",
@@ -6335,6 +6260,12 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e3a9fe34e3e7a50316060351f37187a3f546bce95496156754b601a5fa71b76e"
 
+[[package]]
+name = "siphasher"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "33f4fe9184a62d842c9ef383018f3306d8ba224fd9d836f56d7288308847c256"
+
 [[package]]
 name = "skrifa"
 version = "0.40.0"
@@ -6992,10 +6923,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "214ca0b2191785cbc06209b9ca1861e048e39b5ba33574b3cedd58363d5bb5f6"
 
 [[package]]
-name = "unicode-general-category"
-version = "1.1.0"
+name = "unicase"
+version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b993bddc193ae5bd0d623b49ec06ac3e9312875fdae725a975c51db1cc1677f"
+checksum = "dbc4bc3a9f746d862c45cb89d705aa10f187bb96c76001afab07a0d35ce60142"
 
 [[package]]
 name = "unicode-ident"
@@ -7105,7 +7036,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1bd1a4c633ce09e7d713df1a6e036644a125e15e0c169cfb5180ddf5836ca04b"
 dependencies = [
  "bytemuck",
- "fearless_simd 0.3.0",
+ "fearless_simd",
  "hashbrown 0.16.1",
  "log",
  "peniko",
@@ -7113,21 +7044,6 @@ dependencies = [
  "smallvec",
 ]
 
-[[package]]
-name = "vello_common"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2e9aed918117e8152c9eddfd8362d73c465c23f26c44786aa331707b8a64fa2"
-dependencies = [
- "bytemuck",
- "fearless_simd 0.4.1",
- "guillotiere 0.7.0",
- "log",
- "peniko",
- "smallvec",
- "thiserror 2.0.19",
-]
-
 [[package]]
 name = "vello_cpu"
 version = "0.0.6"
@@ -7136,19 +7052,7 @@ checksum = "0162bfe48aabf6a9fdcd401b628c7d9f260c2cbabb343c70a65feba6f7849edc"
 dependencies = [
  "bytemuck",
  "hashbrown 0.16.1",
- "vello_common 0.0.6",
-]
-
-[[package]]
-name = "vello_cpu"
-version = "0.1.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac7349e1f55f6b801c7c277958df4ea53e7f20f21e8014910ad888b2ecda93ea"
-dependencies = [
- "bytemuck",
- "glifo",
- "hashbrown 0.17.1",
- "vello_common 0.1.0",
+ "vello_common",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index cd225ee..9db1575 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,23 +8,21 @@ authors = [""]
 
 [features]
 default = ["development", "debug_features", "gamecube-adapter"]
-development = ["bevy/dynamic_linking", "bevy/file_watcher", "bevy/embedded_watcher"]
+development = ["bevy/dynamic_linking", "bevy/file_watcher", "bevy/embedded_watcher", "bevy/bevy_dev_tools"]
 debug_features = ["bevy/free_camera"]
 gamecube-adapter = ["dep:gc-adapter-neo"]
 
 [dependencies]
 bevy = { version = "0.19.1", features = ["asset_processor", "basis-universal", "compressed_image_saver", "bevy_settings"] }
-# Loads the scenes you author in the editor (assets/*.bsn) and builds
-# physics colliders from them. An ordinary dependency; remove it if you
-# stop using authored scenes.
 blake3 = { version = "1.8.5", features = [ "pure" ] }
+itertools = "0.15.0"
 thiserror = "2"
 avian3d = "0.7"
 arrayvec = "0.7.8"
 bevy-inspector-egui = "0.37.0"
 bevy_egui = "0.40.0"
+egui_extras = "0.34.3"
 bevy_ggrs = { git = "https://github.com/gschup/bevy_ggrs" }
-bevygraph = { git = "https://github.com/tbillington/bevy_debug_view" }
 serde = "1.0.229"
 serde_json = "1.0.145"
 bincode = "1.3.3"
diff --git a/src/egui_color_convert.rs b/src/egui_color_convert.rs
new file mode 100644
index 0000000..931b057
--- /dev/null
+++ b/src/egui_color_convert.rs
@@ -0,0 +1,16 @@
+use bevy_egui::egui::Color32;
+
+pub trait ColorToEgui {
+    fn to_egui(&self) -> Color32;
+}
+
+impl ColorToEgui for bevy::color::Srgba {
+    fn to_egui(&self) -> Color32 {
+        Color32::from_rgba_unmultiplied(
+            (self.red * 255.0) as u8,
+            (self.green * 255.0) as u8,
+            (self.blue * 255.0) as u8,
+            (self.alpha * 255.0) as u8,
+        )
+    }
+}
diff --git a/src/fighter/attack/mod.rs b/src/fighter/attack/mod.rs
index 0bcc754..8a9d7c4 100644
--- a/src/fighter/attack/mod.rs
+++ b/src/fighter/attack/mod.rs
@@ -33,7 +33,7 @@ use crate::{
 #[derive(Deref, Component, Default, Hash, Debug, Copy, Clone)]
 pub struct FighterKnockbackVelocity(pub FGVec2);
 
-#[derive(Debug, Default, Clone, Copy, Serialize, Deserialize, Component, Hash, PartialEq)]
+#[derive(Debug, Default, Clone, Copy, Serialize, Deserialize, Component, Hash, PartialEq, Eq, PartialOrd, Ord)]
 pub struct FighterDamage(FGi32);
 
 impl std::fmt::Display for FighterDamage {
@@ -80,7 +80,7 @@ impl HitStop {
         HitStop(hitstop)
     }
     pub fn calculate(attack_damage_stalled: FighterDamage, crouch_cancelling: bool) -> Self {
-        let a = (attack_damage_stalled.0 / FGi32::lit("3.0") + FGi32::lit("4.0")).round_to_zero();
+        let a = (attack_damage_stalled.0 / FGi32::lit("3.0") + FGi32::lit("3.0")).round_to_zero();
         let crouch_cancelling_factor = if crouch_cancelling {
             FGi32::lit("0.66666666")
         } else {
@@ -97,6 +97,12 @@ impl HitStop {
     }
 }
 
+impl std::fmt::Display for HitStop {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{}", self.0)
+    }
+}
+
 #[derive(Clone, Copy, Debug, Serialize, Deserialize)]
 pub enum KnockbackType {
     Normal,
@@ -113,9 +119,15 @@ impl KnockbackType {
     }
 }
 
-#[derive(Debug, Default, Clone, Copy, Serialize, Deserialize)]
+#[derive(Debug, Default, Clone, Copy, Serialize, Deserialize, PartialEq, Eq, PartialOrd, Ord)]
 pub struct Knockback(FGi32);
 
+impl std::fmt::Display for Knockback {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "{:.2}", self.0)
+    }
+}
+
 impl Knockback {
     pub fn lit(val: &str) -> Self {
         Self(FGi32::lit(val))
@@ -144,6 +156,15 @@ pub enum AttackAngle {
     Sakurai,
 }
 
+impl std::fmt::Display for AttackAngle {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        match self {
+            AttackAngle::Normal(fixed_i32) => write!(f, "{:.2}º", fixed_i32),
+            AttackAngle::Sakurai => write!(f, "Sakurai"),
+        }
+    }
+}
+
 impl Default for AttackAngle {
     fn default() -> Self {
         AttackAngle::Normal(FGi32::lit("0"))
@@ -175,6 +196,13 @@ impl AttackAngle {
             },
         }
     }
+
+    pub fn to_melee_angle_representation(&self) -> FGi32 {
+        match self {
+            AttackAngle::Normal(fixed_i32) => *fixed_i32,
+            AttackAngle::Sakurai => FGi32::lit("361"),
+        }
+    }
 }
 
 #[derive(Serialize, Deserialize, Reflect, PartialEq, Eq, Hash, Clone, Debug, Default, Copy)]
@@ -217,6 +245,7 @@ impl AttackKind {
 #[reflect(opaque)]
 pub struct AttackHitbox {
     pub id: u32,
+    pub group: u32,
     pub bone: String,
     pub damage: FighterDamage,
     pub offset: FGVec3,
@@ -229,6 +258,14 @@ pub struct AttackHitbox {
     pub end_frame: u32,
 }
 
+static ATTACK_HITBOX_ID_PALETTE: [bevy::color::Srgba; 5] = [
+    bevy::color::palettes::tailwind::RED_500,
+    bevy::color::palettes::tailwind::GREEN_500,
+    bevy::color::palettes::tailwind::BLUE_500,
+    bevy::color::palettes::tailwind::FUCHSIA_500,
+    bevy::color::palettes::tailwind::ORANGE_500,
+];
+
 const STALE_MOVE_QUEUE_COUNT: usize = 9;
 
 #[derive(Component, Hash, Clone, Default)]
@@ -276,6 +313,10 @@ impl FighterStaleMoveQueue {
 }
 
 impl AttackHitbox {
+    pub fn get_debug_draw_color(&self) -> bevy::color::Srgba {
+        ATTACK_HITBOX_ID_PALETTE[self.id as usize % ATTACK_HITBOX_ID_PALETTE.len()]
+    }
+
     pub fn validate(&self) -> Result<(), String> {
         if self.bone.trim().is_empty() {
             return Err("bone name is empty".into());
@@ -369,6 +410,36 @@ pub fn update_active_hitbox_list(script: &FighterAttackScript, list: &mut Vec<us
     );
 }
 
+/// Updates both the currently active hitbox intervals and the lifetime of
+/// their per-group victim histories. A group remains immune only while at
+/// least one hitbox belonging to that group is active.
+pub fn update_active_attack(
+    script: &FighterAttackScript,
+    attack: &mut super::FighterActiveAttack,
+    frame: u32,
+) {
+    update_active_hitbox_list(script, &mut attack.active_hitboxes, frame);
+
+    let mut active_groups = Vec::new();
+    for &index in &attack.active_hitboxes {
+        let group = script.hitboxes[index].group;
+        if !active_groups.contains(&group) {
+            active_groups.push(group);
+        }
+    }
+
+    attack.hit_groups.retain(|state| active_groups.contains(&state.group));
+    for group in active_groups {
+        if !attack.hit_groups.iter().any(|state| state.group == group) {
+            attack.hit_groups.push(super::FighterHitGroupState {
+                group,
+                hit_fighters: Vec::new(),
+            });
+        }
+    }
+    attack.hit_groups.sort_unstable_by_key(|state| state.group);
+}
+
 #[derive(Clone, Debug, PartialEq, Hash)]
 pub struct FighterSolvedHurtbox {
     pub hurtbox_idx: usize,
@@ -571,10 +642,6 @@ pub fn intersect_attacks_with_hurtboxes(
             let Some(active_attack) = hitboxes.0.as_mut() else {
                 continue;
             };
-            if active_attack.hit_fighters.contains(&entity_receiving) {
-                continue;
-            }
-
             let attack_script = attack_scripts
                 .get(&active_attack.script)
                 .expect("Attack script should be valid");
@@ -584,6 +651,15 @@ pub fn intersect_attacks_with_hurtboxes(
                 for solved_hitbox in active_attack.solved_hitboxes.iter() {
                     if hurtbox.capsule.intersects(solved_hitbox.capsule) {
                         let candidate = solved_hitbox.hitbox_idx;
+                        let group = attack_script.hitboxes[candidate].group;
+                        let already_hit = active_attack
+                            .hit_groups
+                            .iter()
+                            .find(|state| state.group == group)
+                            .is_some_and(|state| state.hit_fighters.contains(&entity_receiving));
+                        if already_hit {
+                            continue;
+                        }
                         if hitting_hitbox_idx.is_none_or(|current: usize| {
                             attack_script.hitboxes[candidate].id
                                 < attack_script.hitboxes[current].id
@@ -606,7 +682,14 @@ pub fn intersect_attacks_with_hurtboxes(
                 hitbox_index: hitting_hitbox_idx,
             });
             
-            active_attack.hit_fighters.push(entity_receiving);
+            let group = attack_script.hitboxes[hitting_hitbox_idx].group;
+            if let Some(state) = active_attack
+                .hit_groups
+                .iter_mut()
+                .find(|state| state.group == group)
+            {
+                state.hit_fighters.push(entity_receiving);
+            }
         }
     }
 }
diff --git a/src/fighter/attack/reaction.rs b/src/fighter/attack/reaction.rs
index 0da2514..c5b79b5 100644
--- a/src/fighter/attack/reaction.rs
+++ b/src/fighter/attack/reaction.rs
@@ -114,7 +114,7 @@ pub fn resolve_fighter_hits(
             };
 
             // Attacker hitstop and data
-            let hitstop = HitStop::calculate(FighterDamage(attack_damage), false);
+            let hitstop = HitStop::calculate(FighterDamage(attack_damage), matches!(receiver_state, FighterState::Crouch(..)));
             reactions.push((
                 attacker_entity,
                 attacker_slot,
diff --git a/src/fighter/debug.rs b/src/fighter/debug.rs
index 57f8a0f..2ed16a0 100644
--- a/src/fighter/debug.rs
+++ b/src/fighter/debug.rs
@@ -28,6 +28,7 @@ use crate::math::int::FGi32;
 use crate::math::vec::FGVec2;
 use crate::math::vec3::FGVec3;
 use crate::player::Player;
+use crate::scripting::FighterAttackScript;
 
 pub fn debug_draw_ecb(
     ecbs: Query<(
@@ -368,6 +369,7 @@ pub fn attack_debug(
     )>,
     mut gizmos: Gizmos,
     mut filled_gizmos: FilledGizmos,
+    attack_scripts: Res<Assets<FighterAttackScript>>
 ) {
     for (hitboxes, _matrices, _translation, _facing_direction, _frame) in query {
         if let Some(active_attack) = &hitboxes.0 {
@@ -378,27 +380,35 @@ pub fn attack_debug(
                     (solved_hitbox.capsule.start + solved_hitbox.capsule.end) * FGi32::lit("0.5");
                 let length = (start - end).length();
 
-                let attack_capsule = Capsule3d {
-                    half_length: length * 0.5,
-                    radius: solved_hitbox.capsule.radius.to_num(),
-                };
-
                 let aim_dir = (end - start).normalize_or(Vec3::Y);
 
                 let mut capsule_draw_trf = Transform::IDENTITY;
                 capsule_draw_trf.translation = center.to_vec3();
                 capsule_draw_trf.align(Dir3::Y, aim_dir, Dir3::X, aim_dir.any_orthonormal_vector());
 
+                let Some(script) = attack_scripts.get(&active_attack.script) else {
+                    continue;
+                };
+
+                let hitbox_color =  script.hitboxes.get(solved_hitbox.hitbox_idx).expect("This hitbox should be valid").get_debug_draw_color();
+                /*
+                let attack_capsule = Capsule3d {
+                    half_length: length * 0.5,
+                    radius: solved_hitbox.capsule.radius.to_num(),
+                };
                 gizmos.primitive_3d(
                     &attack_capsule,
                     capsule_draw_trf.to_isometry(),
-                    bevy::color::palettes::css::RED,
-                );
+                    hitbox_color,
+                );*/
+
+                let hitbox_inner_color = bevy::color::Srgba { alpha: 0.18, ..hitbox_color };
+
                 filled_gizmos.capsule(
                     capsule_draw_trf.to_isometry(),
                     solved_hitbox.capsule.radius.to_num(),
                     length * 0.5,
-                    Color::srgba(1.0, 0.0, 0.0, 0.18),
+                    hitbox_inner_color,
                 );
 
                 gizmos.cross(start, 1.0, bevy::color::palettes::css::GREEN);
diff --git a/src/fighter/mod.rs b/src/fighter/mod.rs
index 137ffbf..5ba5dc4 100644
--- a/src/fighter/mod.rs
+++ b/src/fighter/mod.rs
@@ -293,10 +293,16 @@ pub struct FighterActiveAttack {
     pub script: Handle<FighterAttackScript>,
     pub active_hitboxes: Vec<usize>,
     pub solved_hitboxes: Vec<attack::FighterSolvedHitbox>,
-    pub hit_fighters: Vec<Entity>,
+    pub hit_groups: Vec<FighterHitGroupState>,
     pub stalled: bool,
 }
 
+#[derive(Clone, Debug, Hash)]
+pub struct FighterHitGroupState {
+    pub group: u32,
+    pub hit_fighters: Vec<Entity>,
+}
+
 #[derive(Component, Clone, Debug, Default, Hash)]
 pub struct FighterHitboxes(pub Option<FighterActiveAttack>);
 
diff --git a/src/fighter/state/air_attack.rs b/src/fighter/state/air_attack.rs
index dcd0c71..6252a7a 100644
--- a/src/fighter/state/air_attack.rs
+++ b/src/fighter/state/air_attack.rs
@@ -1,23 +1,42 @@
 use bevy::log::error;
 
 use crate::fighter::{
-    attack::{AttackKind, FighterAttackScriptAssets, update_active_hitbox_list}, state::{
-        CollisionContext, EnterContext, ExitContext, FighterState, FighterStateImpl, InterruptContext, UpdateContext, air::{self, AirborneStateCommon}, fall::FallState,
+    attack::{AttackKind, FighterAttackScriptAssets, update_active_attack}, state::{
+        CollisionContext, EnterContext, ExitContext, FighterState, FighterStateImpl, InterruptContext, UpdateContext, air::{self, AirborneStateCommon}, air_attack, fall::FallState, jump,
     },
 };
 
 #[derive(Clone, Debug, Hash)]
 pub struct AirAttackState {
     pub attack_kind: AttackKind,
-    pub airborne_state_common: AirborneStateCommon
+    pub airborne_state_common: AirborneStateCommon,
+    pub is_in_autocancel_window: bool,
 }
 
 impl FighterStateImpl for AirAttackState {
     const NAME: &'static str = "AirAttack";
 
     fn check_interrupt(&self, state_context: &mut InterruptContext) -> Option<FighterState> {
+        let animation_frame = state_context.get_current_animation_frame();
+        let script = state_context
+            .attack_scripts
+            .get(&state_context.attack_script_assets.scripts[&self.attack_kind]);
+        
+        if let Some(script) = script {
+            if let Some(iasa_frame) = script.iasa_frame {
+                if animation_frame >= iasa_frame {
+                    let new_state = jump::check_input_double_jump(state_context).or_else(|| air_attack::check_interrupt(state_context, &self.airborne_state_common));
+                    if let Some(new_state) = new_state {
+                        return Some(new_state);
+                    }
+                }
+            }
+        }
+
         if state_context.is_current_animation_finished() {
-            Some(FighterState::Fall(FallState::new(self.airborne_state_common)))
+            Some(FighterState::Fall(FallState::new(
+                self.airborne_state_common,
+            )))
         } else {
             None
         }
@@ -29,16 +48,19 @@ impl FighterStateImpl for AirAttackState {
             .attack_scripts
             .get(&state_context.attack_script_assets.scripts[&self.attack_kind]);
         if let Some(script) = script {
-            update_active_hitbox_list(
+            update_active_attack(
                 script,
-                &mut state_context
+                state_context
                     .hitboxes
                     .0
                     .as_mut()
-                    .expect("ground attack must have active hitboxes")
-                    .active_hitboxes,
+                    .expect("ground attack must have active hitboxes"),
                 animation_frame,
             );
+            if let Some((autocancel_start, autocancel_end)) = script.wont_autocancel_window {
+                self.is_in_autocancel_window =
+                    animation_frame < autocancel_start || animation_frame > autocancel_end;
+            }
         }
 
         air::update_standard_motion(state_context, &mut self.airborne_state_common);
@@ -55,7 +77,7 @@ impl FighterStateImpl for AirAttackState {
             script,
             active_hitboxes: Vec::new(),
             solved_hitboxes: Vec::new(),
-            hit_fighters: Vec::new(),
+            hit_groups: Vec::new(),
             stalled: false,
         });
     }
@@ -68,11 +90,20 @@ impl FighterStateImpl for AirAttackState {
         &mut self,
         state_context: &mut CollisionContext,
     ) -> Option<FighterState> {
-        air::collision_interrupt(
+        let coll_interrupt = air::collision_interrupt(
             state_context,
             crate::fighter::state::land::LandingType::Normal,
             false,
-        )
+        );
+
+        coll_interrupt.map(|state| {
+            if self.is_in_autocancel_window {
+                state
+            } else {
+                // TODO: Implement proper landing lag
+                state
+            }
+        })
     }
 
     fn is_visually_grounded<'a>(&'a self) -> bool {
@@ -83,25 +114,33 @@ impl FighterStateImpl for AirAttackState {
 #[derive(thiserror::Error, Debug)]
 pub enum AirAttackStateCreateError {
     #[error("Attack script: {attack:?} not found")]
-    AttackScriptNotFound{attack: AttackKind},
+    AttackScriptNotFound { attack: AttackKind },
 }
 
 impl AirAttackState {
-    pub fn create(attack_kind: AttackKind, attack_script_assets: &FighterAttackScriptAssets, airborne_state_common: &AirborneStateCommon) -> Result<Self, AirAttackStateCreateError> {
+    pub fn create(
+        attack_kind: AttackKind,
+        attack_script_assets: &FighterAttackScriptAssets,
+        airborne_state_common: &AirborneStateCommon,
+    ) -> Result<Self, AirAttackStateCreateError> {
         if attack_script_assets.scripts.contains_key(&attack_kind) {
             Ok(AirAttackState {
                 airborne_state_common: airborne_state_common.clone(),
-                attack_kind
+                attack_kind,
+                is_in_autocancel_window: false,
             })
         } else {
-            Err(AirAttackStateCreateError::AttackScriptNotFound { attack: attack_kind })
+            Err(AirAttackStateCreateError::AttackScriptNotFound {
+                attack: attack_kind,
+            })
         }
     }
-
 }
 
-
-pub fn check_interrupt(state_context: &InterruptContext, airborne_state_common: &AirborneStateCommon) -> Option<FighterState> {
+pub fn check_interrupt(
+    state_context: &InterruptContext,
+    airborne_state_common: &AirborneStateCommon,
+) -> Option<FighterState> {
     if state_context
         .input
         .has_command(crate::input::FighterCommands::Attack)
@@ -110,16 +149,18 @@ pub fn check_interrupt(state_context: &InterruptContext, airborne_state_common:
             .input
             .get_attack_command_type()
             .to_attack_kind_airborne(state_context.facing_direction);
-        let state = AirAttackState::create(attack_kind, state_context.attack_script_assets, airborne_state_common);
+        let state = AirAttackState::create(
+            attack_kind,
+            state_context.attack_script_assets,
+            airborne_state_common,
+        );
 
         match state {
-            Ok(state) => {
-                Some(FighterState::AirAttack(state))
-            },
+            Ok(state) => Some(FighterState::AirAttack(state)),
             Err(create_error) => {
                 error!("{}", create_error);
                 None
-            },
+            }
         }
     } else {
         None
diff --git a/src/fighter/state/ground_attack.rs b/src/fighter/state/ground_attack.rs
index ee40146..06a535c 100644
--- a/src/fighter/state/ground_attack.rs
+++ b/src/fighter/state/ground_attack.rs
@@ -1,5 +1,5 @@
 use crate::fighter::{
-    attack::{AttackKind, update_active_hitbox_list},
+    attack::{AttackKind, update_active_attack},
     state::{
         CollisionContext, EnterContext, ExitContext, FighterState, FighterStateImpl,
         InterruptContext, UpdateContext, wait::WaitState,
@@ -28,14 +28,13 @@ impl FighterStateImpl for GroundAttackState {
             .attack_scripts
             .get(&state_context.attack_script_assets.scripts[&self.attack_kind]);
         if let Some(script) = script {
-            update_active_hitbox_list(
+            update_active_attack(
                 script,
-                &mut state_context
+                state_context
                     .hitboxes
                     .0
                     .as_mut()
-                    .expect("ground attack must have active hitboxes")
-                    .active_hitboxes,
+                    .expect("ground attack must have active hitboxes"),
                 animation_frame,
             );
         }
@@ -52,7 +51,7 @@ impl FighterStateImpl for GroundAttackState {
             script,
             active_hitboxes: Vec::new(),
             solved_hitboxes: Vec::new(),
-            hit_fighters: Vec::new(),
+            hit_groups: Vec::new(),
             stalled: false,
         });
     }
diff --git a/src/fighter/state/mod.rs b/src/fighter/state/mod.rs
index f4e2647..b5879ad 100644
--- a/src/fighter/state/mod.rs
+++ b/src/fighter/state/mod.rs
@@ -139,6 +139,7 @@ pub struct InterruptContext<'a> {
     pub surface: &'a FighterSurfaceState,
     pub animation: AnimationStatus,
     pub stage_collision: &'a StageCollision,
+    pub attack_scripts: &'a Assets<FighterAttackScript>,
     pub attack_script_assets: &'a FighterAttackScriptAssets,
 }
 
@@ -300,6 +301,7 @@ impl<'w, 's> FighterFrameQueryItem<'w, 's> {
         baked_animations: &'a Assets<BakedFighterAnimations>,
         attributes: &'a FighterAttributes,
         stage_collision: &'a StageCollision,
+        attack_scripts: &'a Assets<FighterAttackScript>,
         attack_script_assets: &'a FighterAttackScriptAssets,
     ) -> InterruptContext<'a> {
         let animation = self.animation_status(animations, baked_animations);
@@ -312,6 +314,7 @@ impl<'w, 's> FighterFrameQueryItem<'w, 's> {
             surface: &self.surface,
             stage_collision,
             attack_script_assets: attack_script_assets,
+            attack_scripts,
         }
     }
 
@@ -471,6 +474,7 @@ pub fn state_interrupt_system(
     game_settings: Res<GameSettings>,
     baked_animations: Res<Assets<BakedFighterAnimations>>,
     fighter_manifests: Res<Assets<FighterManifest>>,
+    attack_scripts: Res<Assets<FighterAttackScript>>,
     stage_collision: Res<StageCollision>,
 ) {
     for fighter in &mut query {
@@ -547,6 +551,7 @@ pub fn state_interrupt_system(
                 &baked_animations,
                 &manifest.attributes,
                 &stage_collision,
+                &attack_scripts,
                 attack_script_assets,
             ))
         };
diff --git a/src/hitbox_viewer/mod.rs b/src/hitbox_viewer/mod.rs
index f407d69..f03bf73 100644
--- a/src/hitbox_viewer/mod.rs
+++ b/src/hitbox_viewer/mod.rs
@@ -1,28 +1,30 @@
 //! Standalone, read-only attack-script previewer used by `hitbox-editor`.
 
-use bevy::{gltf::Gltf, prelude::*, world_serialization::WorldAssetRoot};
+use std::f32::consts::PI;
+
+use bevy::{
+    camera::ScalingMode,
+    dev_tools::infinite_grid::{InfiniteGrid, InfiniteGridPlugin, InfiniteGridSettings},
+    gltf::Gltf,
+    prelude::*,
+    world_serialization::WorldAssetRoot,
+};
 use bevy_egui::{EguiContexts, EguiPrimaryContextPass, egui};
 use clap::{Parser, ValueEnum};
+use egui_extras::Column;
+use itertools::Itertools;
 
 use crate::{
-    GameAssetPlugin,
-    fighter::{
-        animation::FighterAnimationFrame,
-        attack::{AttackHitbox, AttackKind},
-        baked_animation::{
+    GameAssetPlugin, egui_color_convert::ColorToEgui, fighter::{
+        animation::FighterAnimationFrame, attack::{AttackHitbox, AttackKind, HitStop}, baked_animation::{
             BakedAnimationAssetProcessingPlugin, BakedAnimationSamplingSet,
             BakedAnimationVisualPlugin, BakedFighterAnimations, FighterBoneIndexMap,
             FighterBoneMatrices, FixedMat4,
-        },
-        manifest::{FighterHurtbox, FighterManifest},
-        visual::FighterAnimations,
-    },
-    filled_gizmos::{FilledGizmos, FilledGizmosPlugin},
-    math::{
+        }, manifest::{FighterHurtbox, FighterManifest}, visual::FighterAnimations,
+    }, filled_gizmos::{FilledGizmos, FilledGizmosPlugin}, game_settings::GameSettings, math::{
         int::{FGi32, FGi32Ext},
         vec3::FGVec3,
-    },
-    scripting::{FighterAttackScript, importer::FighterScriptImportPlugin},
+    }, scripting::{FighterAttackScript, importer::FighterScriptImportPlugin},
 };
 
 #[derive(Clone, Copy, Debug, ValueEnum)]
@@ -67,7 +69,7 @@ pub struct HitboxViewerArgs {
     #[arg(long, default_value = "fighters/test/test.fighter.ron")]
     pub manifest: String,
     /// Attack script and matching animation to preview.
-    #[arg(long, value_enum, default_value_t = ViewerAttack::Jab)]
+    #[arg(long, value_enum, default_value_t = ViewerAttack::NeutralAir)]
     pub attack: ViewerAttack,
     /// Start with fighter hurtboxes hidden.
     #[arg(long)]
@@ -76,10 +78,14 @@ pub struct HitboxViewerArgs {
 
 #[derive(Resource)]
 struct ViewerAssets {
+    settings: Handle<GameSettings>,
     manifest: Handle<FighterManifest>,
+    manifest_path: String,
+    manifest_choices: Vec<(String, Handle<FighterManifest>)>,
     model: Option<Handle<Gltf>>,
     baked: Option<Handle<BakedFighterAnimations>>,
     script: Option<Handle<FighterAttackScript>>,
+    script_attack: Option<AttackKind>,
     fighter: Option<Entity>,
     error: Option<String>,
 }
@@ -91,33 +97,57 @@ struct ViewerState {
     playing: bool,
     show_hurtboxes: bool,
     elapsed: f32,
+    manifest_path: String,
 }
 
+const VIEWER_ATTACKS: [AttackKind; 12] = [
+    AttackKind::NeutralAir,
+    AttackKind::ForwardAir,
+    AttackKind::BackAir,
+    AttackKind::DownAir,
+    AttackKind::UpAir,
+    AttackKind::Jab,
+    AttackKind::UpTilt,
+    AttackKind::DownTilt,
+    AttackKind::ForwardTilt,
+    AttackKind::UpSmash,
+    AttackKind::DownSmash,
+    AttackKind::ForwardSmash,
+];
+
 pub struct HitboxViewerPlugin;
 
 impl Plugin for HitboxViewerPlugin {
     fn build(&self, app: &mut App) {
-        let args = app.world().resource::<HitboxViewerArgs>();
-        let attack = args.attack.into();
-        let show_hurtboxes = !args.hide_hurtboxes;
+        let (attack, show_hurtboxes, manifest_path) = {
+            let args = app.world().resource::<HitboxViewerArgs>();
+            (
+                args.attack.into(),
+                !args.hide_hurtboxes,
+                args.manifest.clone(),
+            )
+        };
         app.add_plugins((
             GameAssetPlugin,
             FighterScriptImportPlugin,
             BakedAnimationAssetProcessingPlugin,
             BakedAnimationVisualPlugin,
             FilledGizmosPlugin,
+            InfiniteGridPlugin,
         ))
         .insert_resource(ViewerState {
             attack,
             frame: 0,
-            playing: true,
+            playing: false,
             show_hurtboxes,
             elapsed: 0.0,
+            manifest_path,
         })
         .add_systems(Startup, setup)
         .add_systems(
             FixedUpdate,
             (
+                apply_viewer_selection,
                 request_fighter_dependencies,
                 spawn_preview_fighter,
                 handle_keyboard,
@@ -133,17 +163,28 @@ impl Plugin for HitboxViewerPlugin {
 }
 
 fn setup(mut commands: Commands, asset_server: Res<AssetServer>, args: Res<HitboxViewerArgs>) {
+    let manifest_path = args.manifest.clone();
     commands.insert_resource(ViewerAssets {
-        manifest: asset_server.load(args.manifest.clone()),
+        settings: asset_server.load("game_settings.ron"),
+        manifest: asset_server.load(manifest_path.clone()),
+        manifest_path: manifest_path.clone(),
+        manifest_choices: vec![(manifest_path.clone(), asset_server.load(manifest_path))],
         model: None,
         baked: None,
         script: None,
+        script_attack: None,
         fighter: None,
         error: None,
     });
     commands.spawn((
         Name::new("Hitbox viewer camera"),
         Camera3d::default(),
+        Projection::from(OrthographicProjection {
+            scaling_mode: ScalingMode::FixedVertical {
+                viewport_height: 60.0,
+            },
+            ..OrthographicProjection::default_3d()
+        }),
         Transform::from_xyz(0.0, 9.0, 38.0).looking_at(Vec3::new(0.0, 8.0, 0.0), Vec3::Y),
     ));
     commands.spawn((
@@ -160,30 +201,102 @@ fn setup(mut commands: Commands, asset_server: Res<AssetServer>, args: Res<Hitbo
         brightness: 250.0,
         affects_lightmapped_meshes: true,
     });
+    let mut trf = Transform::IDENTITY;
+    trf.rotate_local_x(PI * 0.5);
+    commands.spawn((InfiniteGrid, InfiniteGridSettings { ..default() }, trf));
+}
+
+fn apply_viewer_selection(
+    mut commands: Commands,
+    asset_server: Res<AssetServer>,
+    manifests: Res<Assets<FighterManifest>>,
+    mut viewer: ResMut<ViewerAssets>,
+    mut state: ResMut<ViewerState>,
+) {
+    if viewer.manifest_path == state.manifest_path {
+        return;
+    }
+    viewer.manifest_path = state.manifest_path.clone();
+    viewer.manifest = asset_server.load(viewer.manifest_path.clone());
+    viewer.model = None;
+    viewer.baked = None;
+    viewer.script = None;
+    viewer.script_attack = None;
+    viewer.error = None;
+    if let Some(fighter) = viewer.fighter.take() {
+        commands.entity(fighter).despawn();
+    }
+    state.frame = 0;
+    state.elapsed = 0.0;
+    state.playing = false;
+    if let Some(manifest) = manifests.get(&viewer.manifest) {
+        if !manifest.attack_scripts.contains_key(&state.attack) {
+            if let Some(attack) = VIEWER_ATTACKS
+                .iter()
+                .copied()
+                .find(|attack| manifest.attack_scripts.contains_key(attack))
+            {
+                state.attack = attack;
+            }
+        }
+    }
 }
 
 fn request_fighter_dependencies(
     asset_server: Res<AssetServer>,
+    settings: Res<Assets<GameSettings>>,
     manifests: Res<Assets<FighterManifest>>,
     mut viewer: ResMut<ViewerAssets>,
-    state: Res<ViewerState>,
+    mut state: ResMut<ViewerState>,
 ) {
-    if viewer.model.is_some() {
-        return;
+    if let Some(settings) = settings.get(&viewer.settings) {
+        for path in &settings.fighter_manifest_paths {
+            if !viewer
+                .manifest_choices
+                .iter()
+                .any(|(known, _)| known == path)
+            {
+                viewer
+                    .manifest_choices
+                    .push((path.clone(), asset_server.load(path.clone())));
+            }
+        }
     }
     let Some(manifest) = manifests.get(&viewer.manifest) else {
         return;
     };
     let Some(script_path) = manifest.attack_scripts.get(&state.attack) else {
+        if let Some(attack) = VIEWER_ATTACKS
+            .iter()
+            .copied()
+            .find(|attack| manifest.attack_scripts.contains_key(attack))
+        {
+            state.attack = attack;
+            return;
+        }
         viewer.error = Some(format!(
             "{:?} has no {:?} attack script",
             manifest.id, state.attack
         ));
         return;
     };
-    viewer.model = Some(asset_server.load(manifest.model_path.clone()));
-    viewer.baked = Some(asset_server.load(manifest.baked_animation_path.clone()));
-    viewer.script = Some(asset_server.load(script_path.clone()));
+    if viewer.script_attack != Some(state.attack) {
+        viewer.script = None;
+        viewer.script_attack = None;
+        state.frame = 0;
+        state.elapsed = 0.0;
+        state.playing = false;
+    }
+    if viewer.model.is_none() {
+        viewer.model = Some(asset_server.load(manifest.model_path.clone()));
+    }
+    if viewer.baked.is_none() {
+        viewer.baked = Some(asset_server.load(manifest.baked_animation_path.clone()));
+    }
+    if viewer.script.is_none() {
+        viewer.script = Some(asset_server.load(script_path.clone()));
+        viewer.script_attack = Some(state.attack);
+    }
     viewer.error = None;
 }
 
@@ -349,7 +462,6 @@ fn draw_preview(
     scripts: Res<Assets<FighterAttackScript>>,
     baked_assets: Res<Assets<BakedFighterAnimations>>,
     manifests: Res<Assets<FighterManifest>>,
-    mut gizmos: Gizmos,
     mut filled: FilledGizmos,
 ) {
     let (Some(script_handle), Some(baked_handle)) = (&viewer.script, &viewer.baked) else {
@@ -398,7 +510,6 @@ fn draw_preview(
             &previous_animation,
             manifest.model_scale,
             fighter_transform,
-            &mut gizmos,
             &mut filled,
         );
     }
@@ -411,7 +522,6 @@ fn draw_hitbox(
     previous_animation: &FighterAnimationFrame,
     model_scale: FGi32,
     fighter_transform: FixedMat4,
-    gizmos: &mut Gizmos,
     filled: &mut FilledGizmos,
 ) {
     let Some(current_bone) =
@@ -451,13 +561,16 @@ fn draw_hitbox(
         transform.to_isometry(),
         radius,
         length * 0.5,
-        Color::srgba(1.0, 0.1, 0.05, 0.32),
+        bevy::color::Srgba {
+            alpha: 0.32,
+            ..hitbox.get_debug_draw_color()
+        },
     );
-    gizmos.primitive_3d(
+    /*gizmos.primitive_3d(
         &Capsule3d::new(radius, length),
         transform.to_isometry(),
         Color::srgb(1.0, 0.15, 0.1),
-    );
+    );*/
 }
 
 fn draw_hurtbox(
@@ -487,10 +600,204 @@ fn draw_hurtbox(
     );
 }
 
+fn draw_summary_ui(
+    ui: &mut egui::Ui,
+    script: &FighterAttackScript,
+    end: u32,
+) {
+    egui::Grid::new("Summary Grid")
+        .num_columns(4)
+        .striped(true)
+        .show(ui, |ui| {
+            ui.label("First active");
+            ui.label("Last active");
+            ui.label("Total");
+            ui.label("IASA");
+            ui.end_row();
+
+            ui.label(
+                script
+                    .hitboxes
+                    .iter()
+                    .map(|hb| hb.start_frame)
+                    .min()
+                    .map(|frame| format!("{}", frame))
+                    .unwrap_or("-".to_owned()),
+            );
+            ui.label(
+                script
+                    .hitboxes
+                    .iter()
+                    .map(|hb| hb.end_frame)
+                    .max()
+                    .map(|frame| format!("{}", frame - 1))
+                    .unwrap_or("-".to_owned()),
+            );
+            ui.label(format!("{}", end));
+            let iasa_frame_label = if let Some(iasa_frame) = script.iasa_frame {
+                format!("{}", iasa_frame)
+            } else {
+                "-".to_owned()
+            };
+            ui.label(iasa_frame_label);
+            ui.end_row();
+
+            ui.label("Landing lag");
+            ui.label("Autocancel");
+            ui.label("Damage");
+            ui.end_row();
+
+            let damages = script
+                .hitboxes
+                .iter()
+                .map(|hb| hb.damage)
+                .sorted()
+                .dedup()
+                .map(|d| format!("{}", d))
+                .join(" / ");
+
+            ui.label(
+                script
+                    .landing_duration
+                    .map(|duration| format!("{}", duration))
+                    .unwrap_or("-".to_string()),
+            );
+
+            let autocancel_text =
+                if let Some(wont_autocancel_window) = script.wont_autocancel_window {
+                    let autocancel_start = if wont_autocancel_window.0 > 0 {
+                        format!("{}", wont_autocancel_window.0)
+                    } else {
+                        "-".to_string()
+                    };
+                    let autocancel_end = if wont_autocancel_window.1 < end {
+                        format!("{}", wont_autocancel_window.1)
+                    } else {
+                        "-".to_string()
+                    };
+                    format!("<{} {}>", autocancel_start, autocancel_end)
+                } else {
+                    "-".to_string()
+                };
+
+            ui.label(autocancel_text);
+            ui.label(format!("{} %", damages));
+
+            ui.end_row();
+            ui.label("Base knockback");
+            ui.label("Knockback Growth");
+            ui.label("Set knockback");
+            ui.label("Angle");
+            ui.end_row();
+
+            let base_knockbacks = script
+                .hitboxes
+                .iter()
+                .map(|hb| hb.knockback)
+                .sorted()
+                .dedup()
+                .map(|d| format!("{}", d))
+                .join(" / ");
+            ui.label(base_knockbacks);
+
+            let knockback_growths = script
+                .hitboxes
+                .iter()
+                .map(|hb| hb.knockback_growth)
+                .sorted()
+                .dedup()
+                .map(|d| format!("{}", d))
+                .join(" / ");
+            ui.label(knockback_growths);
+            ui.label("-");
+
+            let angles = script
+                .hitboxes
+                .iter()
+                .map(|hb| hb.angle.to_melee_angle_representation())
+                .sorted()
+                .dedup()
+                .map(|d| {
+                    format!("{}", d)
+                })
+                .join(" / ");
+            ui.label(angles);
+        });
+
+    ui.separator();
+
+    const COLS: [&str; 8] = [
+        "Hitbox",
+        "Damage",
+        "Angle",
+        "Base Knockback",
+        "Knockback Growth",
+        "Set Knockback",
+        "Hitstop Attacker",
+        "Hitstop Defender",
+    ];
+
+    let table_builder = egui_extras::TableBuilder::new(ui)
+        .striped(true)
+        .resizable(true)
+        .cell_layout(egui::Layout::left_to_right(egui::Align::Center))
+        .columns(Column::remainder(), COLS.len());
+
+    table_builder.header(20.0, |mut header| {
+        for col in COLS {
+            header.col(|ui| {
+                ui.label(col);
+            });
+        }
+    }).body(|body| {
+        body.rows(18.0, script.hitboxes.len(), |mut row| {
+            let hitbox = &script.hitboxes[row.index()];
+            let hitbox_color = hitbox.get_debug_draw_color().to_egui();
+            row.col(|ui| {
+                let (response, painter) = ui.allocate_painter(egui::Vec2::new(16.0, 16.0), egui::Sense::empty());
+                painter.rect_filled(
+                    response.rect,
+                    2.0,
+                    hitbox_color,
+                );
+                ui.label(format!("ID {}", hitbox.id));
+            });
+            row.col(|ui| {
+                ui.label(format!("{} %", hitbox.damage));
+            });
+
+            row.col(|ui| {
+                ui.label(format!("{}", hitbox.angle));
+            });
+
+            row.col(|ui| {
+                ui.label(format!("{}", hitbox.knockback));
+            });
+
+            row.col(|ui| {
+                ui.label(format!("{}", hitbox.knockback_growth));
+            });
+            // TODO: Set knockback
+            row.col(|ui| {
+                ui.label("-");
+            });
+
+            row.col(|ui| {
+                ui.label(format!("{}", HitStop::calculate(hitbox.damage, false)));
+            });
+
+            row.col(|ui| {
+                ui.label(format!("{} ({} crouched)", HitStop::calculate(hitbox.damage, false), HitStop::calculate(hitbox.damage, true)));
+            });
+        });
+    });
+}
+
 fn draw_ui(
     mut contexts: EguiContexts,
     mut state: ResMut<ViewerState>,
     viewer: Res<ViewerAssets>,
+    manifests: Res<Assets<FighterManifest>>,
     scripts: Res<Assets<FighterAttackScript>>,
     baked_assets: Res<Assets<BakedFighterAnimations>>,
 ) -> Result {
@@ -499,10 +806,62 @@ fn draw_ui(
         .script
         .as_ref()
         .and_then(|handle| scripts.get(handle));
+    egui::Window::new("Attack")
+        .anchor(egui::Align2::RIGHT_TOP, egui::vec2(-10.0, 10.0))
+        .resizable(true)
+        .show(contexts.ctx_mut()?, |ui| {
+            ui.horizontal(|ui| {
+                egui::ComboBox::from_id_salt("viewer-fighter")
+                    .selected_text(
+                        manifests
+                            .get(&viewer.manifest)
+                            .map(|manifest| format!("{:?}", manifest.id))
+                            .unwrap_or_else(|| state.manifest_path.clone()),
+                    )
+                    .show_ui(ui, |ui| {
+                        for (path, handle) in &viewer.manifest_choices {
+                            let label = manifests
+                                .get(handle)
+                                .map(|manifest| format!("{:?}", manifest.id))
+                                .unwrap_or_else(|| path.clone());
+                            if ui
+                                .selectable_label(state.manifest_path == *path, label)
+                                .clicked()
+                            {
+                                state.manifest_path = path.clone();
+                            }
+                        }
+                    });
+                egui::ComboBox::from_id_salt("viewer-attack")
+                    .selected_text(format!("{:?}", state.attack))
+                    .show_ui(ui, |ui| {
+                        if let Some(manifest) = manifests.get(&viewer.manifest) {
+                            for attack in VIEWER_ATTACKS {
+                                if manifest.attack_scripts.contains_key(&attack) {
+                                    ui.selectable_value(
+                                        &mut state.attack,
+                                        attack,
+                                        format!("{:?}", attack),
+                                    );
+                                }
+                            }
+                        }
+                    });
+            });
+            ui.vertical(|ui| {
+                let Some(script) = script else {
+                    ui.spinner();
+                    ui.label("Waiting for the processed attack script…");
+                    return;
+                };
+                draw_summary_ui(ui, script, end);
+            });
+        });
+
     egui::Window::new("Timeline")
         .anchor(egui::Align2::CENTER_BOTTOM, egui::vec2(0.0, -10.0))
-        .resizable(true)
-        .default_size(egui::vec2(780.0, 190.0))
+        .resizable(false)
+        .default_size(egui::vec2(780.0, 250.0))
         .show(contexts.ctx_mut()?, |ui| {
             ui.horizontal(|ui| {
                 if ui
@@ -521,8 +880,6 @@ fn draw_ui(
                 }
                 ui.label(format!("Frame {} / {}", state.frame, end.saturating_sub(1)));
                 ui.checkbox(&mut state.show_hurtboxes, "Hurtboxes");
-                ui.separator();
-                ui.label(format!("{:?}", state.attack));
             });
             if let Some(error) = &viewer.error {
                 ui.colored_label(egui::Color32::RED, error);
@@ -532,82 +889,12 @@ fn draw_ui(
                 ui.label("Waiting for the processed attack script…");
                 return;
             };
-            draw_summary_timeline(ui, &mut state, script, end);
+            //draw_summary_timeline(ui, &mut state, script, end);
             draw_timeline(ui, &mut state, script, end);
         });
     Ok(())
 }
 
-fn draw_summary_timeline(
-    ui: &mut egui::Ui,
-    state: &mut ViewerState,
-    script: &FighterAttackScript,
-    end: u32,
-) {
-    let row_height = 20.0;
-    let label_width = 55.0;
-    let height = (row_height + 25.0f32).min(ui.available_height());
-    let (response, painter) = ui.allocate_painter(
-        egui::vec2(ui.available_width(), height),
-        egui::Sense::click_and_drag(),
-    );
-    let rect = response.rect;
-    let timeline = egui::Rect::from_min_max(
-        egui::pos2(rect.left() + label_width, rect.top()),
-        rect.right_bottom(),
-    );
-    if (response.clicked() || response.dragged())
-        && let Some(pointer) = response.interact_pointer_pos()
-        && timeline.contains(pointer)
-    {
-        let fraction = ((pointer.x - timeline.left()) / timeline.width()).clamp(0.0, 1.0);
-        state.frame = ((end.saturating_sub(1)) as f32 * fraction).round() as u32;
-        state.playing = false;
-    }
-    for frame in 0..end {
-        if frame % 5 != 0 {
-            continue;
-        }
-        let x = frame_x(timeline, frame, end);
-        painter.line_segment(
-            [egui::pos2(x, rect.top()), egui::pos2(x, rect.bottom())],
-            egui::Stroke::new(1.0_f32, egui::Color32::from_gray(55)),
-        );
-        painter.text(
-            egui::pos2(x + 2.0, rect.top()),
-            egui::Align2::LEFT_TOP,
-            frame.to_string(),
-            egui::FontId::monospace(10.0),
-            egui::Color32::GRAY,
-        );
-    }
-    for frame in 0..end {
-        let top = rect.top() + 20.0 as f32;
-        painter.text(
-            egui::pos2(rect.left(), top + 2.0),
-            egui::Align2::LEFT_TOP,
-            format!("HB {}", 2),
-            egui::FontId::monospace(12.0),
-            egui::Color32::LIGHT_GRAY,
-        );
-        let active_hitbox = script
-            .hitboxes
-            .iter()
-            .filter(|hitbox| hitbox.start_frame <= frame && hitbox.end_frame > frame)
-            .max_by(|a, b| a.id.cmp(&b.id));
-        let bar = egui::Rect::from_min_max(
-            egui::pos2(frame_x(timeline, frame, end), top + 2.0),
-            egui::pos2(frame_x(timeline, frame + 1, end), top + row_height - 2.0),
-        );
-
-        if let Some(_active_hitbox) = active_hitbox {
-            painter.rect_filled(bar, 2.0, egui::Color32::from_rgb(245, 75, 55));
-        } else {
-            painter.rect_stroke(bar, 2.0, egui::Stroke::new(2.0f32, egui::Color32::from_rgb(75, 75, 75)), egui::StrokeKind::Inside);
-        }
-    }
-}
-
 fn draw_timeline(
     ui: &mut egui::Ui,
     state: &mut ViewerState,
@@ -616,8 +903,9 @@ fn draw_timeline(
 ) {
     let row_height = 20.0;
     let label_width = 55.0;
+    // +1 for the summary layer
     let height =
-        (script.hitboxes.len().max(1) as f32 * row_height + 25.0).min(ui.available_height());
+        ((script.hitboxes.len().max(1) + 1) as f32 * row_height + 25.0).min(ui.available_height());
     let (response, painter) = ui.allocate_painter(
         egui::vec2(ui.available_width(), height),
         egui::Sense::click_and_drag(),
@@ -652,12 +940,56 @@ fn draw_timeline(
             egui::Color32::GRAY,
         );
     }
+
+    // Draw summary row
+    for frame in 0..end {
+        let top = rect.top() + 20.0 as f32;
+        let active_hitbox = script
+            .hitboxes
+            .iter()
+            .filter(|hitbox| hitbox.start_frame <= frame && hitbox.end_frame > frame)
+            .max_by(|a, b| a.id.cmp(&b.id));
+        let bar = egui::Rect::from_min_max(
+            egui::pos2(frame_x(timeline, frame, end), top + 2.0),
+            egui::pos2(frame_x(timeline, frame + 1, end), top + row_height - 2.0),
+        );
+
+        if let Some(active_hitbox) = active_hitbox {
+            painter.rect_filled(bar, 2.0, active_hitbox.get_debug_draw_color().to_egui());
+        }
+
+        let stroke_color = if let Some(iasa_frame) = script.iasa_frame
+            && frame == iasa_frame
+        {
+            Some(bevy::color::palettes::tailwind::CYAN_300)
+        } else if let Some(wont_autocancel_window) = script.wont_autocancel_window
+            && (frame < wont_autocancel_window.0 || frame > wont_autocancel_window.1)
+        {
+            Some(bevy::color::palettes::tailwind::LIME_300)
+        } else if let None = active_hitbox {
+            Some(bevy::color::palettes::tailwind::GRAY_600)
+        } else {
+            None
+        };
+
+        if let Some(stroke_color) = stroke_color {
+            painter.rect_stroke(
+                bar,
+                2.0,
+                egui::Stroke::new(2.0f32, stroke_color.to_egui()),
+                egui::StrokeKind::Inside,
+            );
+        }
+    }
+
+    // Draw hitbox rows
     for (row, hitbox) in script.hitboxes.iter().enumerate() {
+        let row = row + 1;
         let top = rect.top() + 20.0 + row as f32 * row_height;
         painter.text(
             egui::pos2(rect.left(), top + 2.0),
             egui::Align2::LEFT_TOP,
-            format!("HB {}", hitbox.id),
+            format!("{}", hitbox.id),
             egui::FontId::monospace(12.0),
             egui::Color32::LIGHT_GRAY,
         );
@@ -673,10 +1005,11 @@ fn draw_timeline(
             bar,
             2.0,
             if active {
-                egui::Color32::from_rgb(245, 75, 55)
+                hitbox.get_debug_draw_color()
             } else {
-                egui::Color32::from_rgb(125, 48, 42)
-            },
+                hitbox.get_debug_draw_color().darker(0.2)
+            }
+            .to_egui(),
         );
     }
     let playhead = frame_x(timeline, state.frame, end);
diff --git a/src/lib.rs b/src/lib.rs
index c78aa77..4db5f7f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -62,6 +62,7 @@ pub mod scripting;
 pub mod stage;
 pub mod texture_reference;
 pub mod ui;
+pub mod egui_color_convert;
 
 #[derive(States, Debug, Clone, Copy, Eq, PartialEq, Hash, Default)]
 pub enum AppState {
diff --git a/src/scripting/mod.rs b/src/scripting/mod.rs
index de83d1b..9727e8e 100644
--- a/src/scripting/mod.rs
+++ b/src/scripting/mod.rs
@@ -1,6 +1,5 @@
 use bevy::prelude::*;
 use serde::{Deserialize, Serialize};
-use std::collections::HashSet;
 
 use crate::{fighter::attack::AttackHitbox, math::int::FGi32};
 
@@ -15,22 +14,37 @@ pub enum MoveAngleKind {
 #[derive(Asset, Reflect, Serialize, Deserialize)]
 pub struct FighterAttackScript {
     pub hitboxes: Vec<AttackHitbox>,
-    pub iasa_frame: u32,
-    pub wont_autocancel_window: (u32, u32),
+    pub iasa_frame: Option<u32>,
+    pub wont_autocancel_window: Option<(u32, u32)>,
+    pub landing_duration: Option<u32>,
 }
 
 impl FighterAttackScript {
     pub fn validate(&self) -> Result<(), String> {
-        let mut ids = HashSet::with_capacity(self.hitboxes.len());
         for hitbox in &self.hitboxes {
             hitbox.validate()?;
-            if !ids.insert(hitbox.id) {
-                return Err(format!("duplicate hitbox id {}", hitbox.id));
+        }
+        for (index, left) in self.hitboxes.iter().enumerate() {
+            for right in self.hitboxes.iter().skip(index + 1) {
+                if left.id == right.id
+                    && left.start_frame < right.end_frame
+                    && right.start_frame < left.end_frame
+                {
+                    return Err(format!(
+                        "hitbox id {} has overlapping intervals {}..{} and {}..{}",
+                        left.id, left.start_frame, left.end_frame, right.start_frame,
+                        right.end_frame
+                    ));
+                }
             }
         }
-        if self.wont_autocancel_window.0 > self.wont_autocancel_window.1 {
-            return Err("autocancel window end precedes its start".into());
+        
+        if let Some(wont_autocancel_window) = self.wont_autocancel_window {
+            if wont_autocancel_window.0 > wont_autocancel_window.1 {
+                return Err("autocancel window end precedes its start".into());
+            }
         }
+
         Ok(())
     }
 }
diff --git a/src/scripting/move_compiler.rs b/src/scripting/move_compiler.rs
index 65e1b98..622c779 100644
--- a/src/scripting/move_compiler.rs
+++ b/src/scripting/move_compiler.rs
@@ -1,6 +1,7 @@
 use std::{cell::RefCell, collections::HashMap, rc::Rc};
 
 use rhai::EvalAltResult;
+use serde::{Deserialize, Serialize};
 
 use crate::{
     fighter::attack::{self, AttackAngle, FighterDamage, Knockback, KnockbackType},
@@ -10,13 +11,41 @@ use crate::{
 
 #[derive(Debug, Default)]
 struct MoveCompiler {
-    hitboxes: HashMap<u32, attack::AttackHitbox>,
-    active_hitboxes: Vec<u32>,
+    hitboxes: Vec<attack::AttackHitbox>,
+    active_hitboxes: HashMap<u32, usize>,
     wont_autocancel_window: Option<(u32, u32)>,
     iasa_frame: Option<u32>,
+    landing_duration: Option<u32>,
     cursor: u32,
 }
 
+#[derive(Debug, Serialize, Deserialize, Clone)]
+pub struct SharedHitboxInfo {
+    damage: FighterDamage,
+    angle: AttackAngle,
+    knockback_type: KnockbackType,
+    knockback: Knockback,
+    knockback_growth: FGi32,
+}
+
+impl SharedHitboxInfo {
+    pub fn make(
+        damage: FighterDamage,
+        angle: AttackAngle,
+        knockback_type: KnockbackType,
+        knockback: Knockback,
+        knockback_growth: FGi32,
+    ) -> Self {
+        Self {
+            damage,
+            angle,
+            knockback_type,
+            knockback,
+            knockback_growth,
+        }
+    }
+}
+
 fn rhai_u32(value: i64, parameter: &str) -> Result<u32, Box<EvalAltResult>> {
     u32::try_from(value).map_err(|_| {
         format!(
@@ -43,28 +72,18 @@ impl MoveCompiler {
     }
 
     fn remove_hitbox(&mut self, id: u32) -> Result<(), Box<EvalAltResult>> {
-        let hb = self
-            .hitboxes
-            .get_mut(&id)
+        let hitbox_index = *self
+            .active_hitboxes
+            .get(&id)
             .ok_or(format!("Can't remove hitbox with {id}: Hitbox not found"))?;
-
-        let active_hbox_position =
-            self.active_hitboxes
-                .iter()
-                .position(|i| *i == id)
-                .ok_or(format!(
-                    "Can't remove hitbox with ID {id}: Hitbox was not active"
-                ))?;
-
-        hb.end_frame = self.cursor;
-
-        self.active_hitboxes.remove(active_hbox_position);
+        self.hitboxes[hitbox_index].end_frame = self.cursor;
+        self.active_hitboxes.remove(&id);
 
         Ok(())
     }
     fn remove_all_hitboxes(&mut self) -> Result<(), Box<EvalAltResult>> {
         // We are gonna modify the array, so take a copy...
-        for hitbox_id in self.active_hitboxes.clone() {
+        for hitbox_id in self.active_hitboxes.keys().copied().collect::<Vec<_>>() {
             self.remove_hitbox(hitbox_id)?;
         }
 
@@ -97,14 +116,14 @@ impl MoveCompiler {
 
     fn into_attack_script(mut self) -> Result<FighterAttackScript, String> {
         self.remove_all_hitboxes().map_err(|err| err.to_string())?;
-        let mut hitboxes: Vec<_> = self.hitboxes.into_values().collect();
-        hitboxes.sort_unstable_by_key(|hitbox| hitbox.id);
-        let iasa_frame = self.iasa_frame.unwrap_or(100000);
-        let wont_autocancel_window = self.wont_autocancel_window.unwrap_or((0, 100000));
+        let mut hitboxes = self.hitboxes;
+        hitboxes.sort_unstable_by_key(|hitbox| (hitbox.id, hitbox.start_frame));
+
         Ok(FighterAttackScript {
             hitboxes,
-            iasa_frame,
-            wont_autocancel_window,
+            iasa_frame: self.iasa_frame,
+            wont_autocancel_window: self.wont_autocancel_window,
+            landing_duration: self.landing_duration,
         })
     }
 }
@@ -117,7 +136,9 @@ pub fn register_common_types(engine: &mut rhai::Engine) {
         .register_fn("knockback_normal", KnockbackType::make_normal)
         .register_fn("knockback_fixed", KnockbackType::make_fixed)
         .register_type_with_name::<AttackAngle>("Angle")
-        .register_fn("angle", |str: &str| AttackAngle::make_normal(FGi32::lit(str)))
+        .register_fn("angle", |str: &str| {
+            AttackAngle::make_normal(FGi32::lit(str))
+        })
         .register_fn("angle_sakurai", AttackAngle::make_sakurai)
         .register_type_with_name::<Knockback>("Knockback")
         .register_fn("knockback", Knockback::lit)
@@ -128,6 +149,17 @@ pub fn register_common_types(engine: &mut rhai::Engine) {
         .register_type_with_name::<FGVec3>("Vec3")
         .register_fn("vec3", FGVec3::lit)
         .register_type_with_name::<FighterDamage>("FighterDamage")
+        .register_type_with_name::<SharedHitboxInfo>("SharedHitboxInfo")
+        .register_fn(
+            "make_hitbox_info",
+            |damage: FighterDamage,
+             angle: AttackAngle,
+             knockback_type: KnockbackType,
+             knockback: Knockback,
+             knockback_growth: FGi32| {
+                SharedHitboxInfo::make(damage, angle, knockback_type, knockback, knockback_growth)
+            },
+        )
         .register_fn("damage", FighterDamage::lit);
 }
 
@@ -200,6 +232,37 @@ pub fn compile_script(text: &str) -> Result<FighterAttackScript, String> {
             );
         }
 
+        {
+            let mc = mc.clone();
+            engine.register_fn(
+                "hitbox",
+                move |id: i64,
+                      group: i64,
+                      bone: &str,
+                      offset: FGVec3,
+                      radius: FGi32,
+                      shared: SharedHitboxInfo|
+                      -> Result<(), Box<EvalAltResult>> {
+                    add_hitbox(
+                        &mc,
+                        id,
+                        group,
+                        bone,
+                        shared.damage,
+                        offset,
+                        radius,
+                        shared.angle.clone(),
+                        shared.knockback_type,
+                        shared.knockback,
+                        shared.knockback_growth,
+                    )
+                },
+            );
+        }
+
+        // Keep the original script syntax working. A hitbox without an
+        // explicit group behaves as its own group, which preserves the old
+        // one-hit-per-target behavior.
         {
             let mc = mc.clone();
             engine.register_fn(
@@ -214,18 +277,11 @@ pub fn compile_script(text: &str) -> Result<FighterAttackScript, String> {
                       knockback: Knockback,
                       knockback_growth: FGi32|
                       -> Result<(), Box<EvalAltResult>> {
-                    let mut b = mc.borrow_mut();
-
-                    // Rhai does not have first class u32 support, so we have to do this.
-                    let id = rhai_u32(id, "hitbox id")?;
-
-                    if b.hitboxes.contains_key(&id) {
-                        return Err(format!("Hitbox with ID {} already existed!", id).into());
-                    }
-
-                    let hitbox = attack::AttackHitbox {
+                    add_hitbox(
+                        &mc,
                         id,
-                        bone: bone.to_owned(),
+                        id,
+                        bone,
                         damage,
                         offset,
                         radius,
@@ -233,28 +289,92 @@ pub fn compile_script(text: &str) -> Result<FighterAttackScript, String> {
                         knockback_type,
                         knockback,
                         knockback_growth,
-                        start_frame: b.cursor,
-                        end_frame: b.cursor,
-                    };
+                    )
+                },
+            );
+        }
 
-                    b.hitboxes.insert(id, hitbox);
-                    b.active_hitboxes.push(id);
-
-                    Ok(())
+        {
+            let mc = mc.clone();
+            engine.register_fn(
+                "hitbox",
+                move |id: i64,
+                      group: i64,
+                      bone: &str,
+                      damage: FighterDamage,
+                      offset: FGVec3,
+                      radius: FGi32,
+                      angle: AttackAngle,
+                      knockback_type: KnockbackType,
+                      knockback: Knockback,
+                      knockback_growth: FGi32|
+                      -> Result<(), Box<EvalAltResult>> {
+                    add_hitbox(
+                        &mc,
+                        id,
+                        group,
+                        bone,
+                        damage,
+                        offset,
+                        radius,
+                        angle,
+                        knockback_type,
+                        knockback,
+                        knockback_growth,
+                    )
                 },
             );
         }
         engine.run(&text)
     };
-
-    result
+    let script = result
         .map(|_| {
             Rc::into_inner(mc)
                 .unwrap()
                 .into_inner()
                 .into_attack_script()
         })
-        .map_err(|err| err.to_string())?
+        .map_err(|err| err.to_string())??;
+    script.validate().map(|()| script)
+}
+
+fn add_hitbox(
+    mc: &Rc<RefCell<MoveCompiler>>,
+    raw_id: i64,
+    raw_group: i64,
+    bone: &str,
+    damage: FighterDamage,
+    offset: FGVec3,
+    radius: FGi32,
+    angle: AttackAngle,
+    knockback_type: KnockbackType,
+    knockback: Knockback,
+    knockback_growth: FGi32,
+) -> Result<(), Box<EvalAltResult>> {
+    let mut b = mc.borrow_mut();
+    let id = rhai_u32(raw_id, "hitbox id")?;
+    let group = rhai_u32(raw_group, "hitbox group")?;
+    if b.active_hitboxes.contains_key(&id) {
+        return Err(format!("Hitbox with ID {} is already active!", id).into());
+    }
+    let hitbox_index = b.hitboxes.len();
+    let frame = b.cursor;
+    b.hitboxes.push(attack::AttackHitbox {
+        id,
+        group,
+        bone: bone.to_owned(),
+        damage,
+        offset,
+        radius,
+        angle,
+        knockback_type,
+        knockback,
+        knockback_growth,
+        start_frame: frame,
+        end_frame: frame,
+    });
+    b.active_hitboxes.insert(id, hitbox_index);
+    Ok(())
 }
 
 #[cfg(test)]
@@ -316,4 +436,29 @@ mod tests {
         assert_eq!(script.hitboxes[0].start_frame, 1);
         assert_eq!(script.hitboxes[0].end_frame, 2);
     }
+
+    #[test]
+    fn hitbox_ids_can_be_reused_after_removal() {
+        let script = compile_script(&format!(
+            "frame(1); {HITBOX} frame(2); remove_hitbox(0); frame(4); {HITBOX} frame(5);"
+        ))
+        .unwrap();
+
+        assert_eq!(script.hitboxes.len(), 2);
+        assert_eq!(script.hitboxes[0].start_frame, 1);
+        assert_eq!(script.hitboxes[0].end_frame, 2);
+        assert_eq!(script.hitboxes[1].start_frame, 4);
+        assert_eq!(script.hitboxes[1].end_frame, 5);
+    }
+
+    #[test]
+    fn explicit_hitbox_group_is_compiled() {
+        let script = compile_script(
+            r#"frame(1); hitbox(7, 3, "hand_l", damage("1"), vec3("0", "0", "0"), fg32("1"), angle("0"), knockback_normal(), knockback("1"), fg32("1")); frame(2);"#,
+        )
+        .unwrap();
+
+        assert_eq!(script.hitboxes[0].id, 7);
+        assert_eq!(script.hitboxes[0].group, 3);
+    }
 }