diff --git a/src/abilities/mod.rs b/src/abilities/mod.rs
index d0b02dc..35e2c6b 100644
--- a/src/abilities/mod.rs
+++ b/src/abilities/mod.rs
@@ -3,7 +3,7 @@ mod thrown;
 
 use crate::{
     GameState,
-    active_heads::ActiveHeads,
+    heads::ActiveHeads,
     npc::Hit,
     player::{Player, PlayerRig},
     tb_entities::EnemySpawn,
diff --git a/src/aim/target_ui.rs b/src/aim/target_ui.rs
index e0dee53..0496156 100644
--- a/src/aim/target_ui.rs
+++ b/src/aim/target_ui.rs
@@ -2,7 +2,7 @@ use super::AimState;
 use crate::{
     GameState,
     backpack::UiHeadState,
-    heads_ui::HeadsImages,
+    heads::HeadsImages,
     loading_assets::UIAssets,
     npc::{Hitpoints, NpcHead},
 };
diff --git a/src/backpack/backpack_ui.rs b/src/backpack/backpack_ui.rs
index b66f77b..5025b24 100644
--- a/src/backpack/backpack_ui.rs
+++ b/src/backpack/backpack_ui.rs
@@ -1,5 +1,5 @@
 use super::{BackbackSwapEvent, Backpack, UiHeadState};
-use crate::{GameState, heads_ui::HeadsImages, loading_assets::UIAssets, sounds::PlaySound};
+use crate::{GameState, heads::HeadsImages, loading_assets::UIAssets, sounds::PlaySound};
 use bevy::prelude::*;
 
 static HEAD_SLOTS: usize = 5;
diff --git a/src/backpack/mod.rs b/src/backpack/mod.rs
index a418acb..489d7b1 100644
--- a/src/backpack/mod.rs
+++ b/src/backpack/mod.rs
@@ -3,7 +3,7 @@ mod ui_head_state;
 
 use crate::{
     GameState,
-    active_heads::{HEAD_COUNT, HeadState},
+    heads::{HEAD_COUNT, HeadState},
 };
 use bevy::prelude::*;
 
diff --git a/src/backpack/ui_head_state.rs b/src/backpack/ui_head_state.rs
index 55bbcd6..7228b28 100644
--- a/src/backpack/ui_head_state.rs
+++ b/src/backpack/ui_head_state.rs
@@ -1,7 +1,6 @@
+use crate::heads::HeadState;
 use bevy::prelude::*;
 
-use crate::active_heads::HeadState;
-
 #[derive(Clone, Copy, Debug, PartialEq, Reflect, Default)]
 pub struct UiHeadState {
     pub head: usize,
diff --git a/src/control/controls.rs b/src/control/controls.rs
index 9b45176..7358702 100644
--- a/src/control/controls.rs
+++ b/src/control/controls.rs
@@ -1,5 +1,5 @@
 use crate::{
-    GameState, abilities::TriggerState, active_heads::SelectActiveHead, backpack::BackpackAction,
+    GameState, abilities::TriggerState, backpack::BackpackAction, heads::SelectActiveHead,
 };
 use bevy::{
     input::{
diff --git a/src/heads_ui.rs b/src/heads/heads_ui.rs
similarity index 92%
rename from src/heads_ui.rs
rename to src/heads/heads_ui.rs
index 997880a..2c70752 100644
--- a/src/heads_ui.rs
+++ b/src/heads/heads_ui.rs
@@ -1,14 +1,10 @@
-use crate::{
-    GameState,
-    active_heads::{ActiveHeads, HEAD_COUNT, HEAD_SLOTS},
-    backpack::UiHeadState,
-    loading_assets::UIAssets,
-    player::head_id_to_str,
-};
+use crate::{GameState, backpack::UiHeadState, loading_assets::UIAssets};
 use bevy::prelude::*;
 use bevy_ui_gradients::{AngularColorStop, BackgroundGradient, ConicGradient, Gradient, Position};
 use std::f32::consts::PI;
 
+use super::{ActiveHeads, HEAD_SLOTS, HeadsImages};
+
 #[derive(Component, Reflect, Default)]
 #[reflect(Component)]
 struct HeadSelector(pub usize);
@@ -21,11 +17,6 @@ struct HeadImage(pub usize);
 #[reflect(Component)]
 struct HeadDamage(pub usize);
 
-#[derive(Resource, Default)]
-pub struct HeadsImages {
-    pub heads: Vec<Handle<Image>>,
-}
-
 #[derive(Resource, Default, Reflect)]
 #[reflect(Resource)]
 struct UiActiveHeads {
@@ -44,7 +35,7 @@ pub fn plugin(app: &mut App) {
     );
 }
 
-fn setup(mut commands: Commands, asset_server: Res<AssetServer>, assets: Res<UIAssets>) {
+fn setup(mut commands: Commands, assets: Res<UIAssets>) {
     commands
         .spawn(Node {
             position_type: PositionType::Absolute,
@@ -66,13 +57,6 @@ fn setup(mut commands: Commands, asset_server: Res<AssetServer>, assets: Res<UIA
             }
         });
 
-    // TODO: load via asset loader
-    let heads = (0usize..HEAD_COUNT)
-        .map(|i| asset_server.load(format!("ui/heads/{}.png", head_id_to_str(i))))
-        .collect();
-
-    commands.insert_resource(HeadsImages { heads });
-
     commands.init_resource::<UiActiveHeads>();
 }
 
diff --git a/src/active_heads.rs b/src/heads/mod.rs
similarity index 86%
rename from src/active_heads.rs
rename to src/heads/mod.rs
index 5e84675..56bfad3 100644
--- a/src/active_heads.rs
+++ b/src/heads/mod.rs
@@ -1,6 +1,10 @@
+mod heads_ui;
+
 use crate::{
+    GameState,
     abilities::HeadAbility,
     backpack::{BackbackSwapEvent, Backpack},
+    player::head_id_to_str,
     sounds::PlaySound,
 };
 use bevy::prelude::*;
@@ -8,6 +12,11 @@ use bevy::prelude::*;
 pub static HEAD_COUNT: usize = 18;
 pub static HEAD_SLOTS: usize = 5;
 
+#[derive(Resource, Default)]
+pub struct HeadsImages {
+    pub heads: Vec<Handle<Image>>,
+}
+
 #[derive(Clone, Copy, Debug, PartialEq, Reflect)]
 pub struct HeadState {
     pub head: usize,
@@ -80,6 +89,8 @@ pub enum SelectActiveHead {
 pub struct HeadChanged(pub usize);
 
 pub fn plugin(app: &mut App) {
+    app.add_plugins(heads_ui::plugin);
+
     app.insert_resource(ActiveHeads {
         heads: [
             Some(HeadState::new(0, 10).with_ability(HeadAbility::Thrown)),
@@ -91,10 +102,21 @@ pub fn plugin(app: &mut App) {
         current_slot: 0,
     });
 
+    app.add_systems(OnEnter(GameState::Playing), setup);
+
     app.add_observer(on_select_active_head);
     app.add_observer(on_swap_backpack);
 }
 
+fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
+    // TODO: load via asset loader
+    let heads = (0usize..HEAD_COUNT)
+        .map(|i| asset_server.load(format!("ui/heads/{}.png", head_id_to_str(i))))
+        .collect();
+
+    commands.insert_resource(HeadsImages { heads });
+}
+
 fn on_select_active_head(
     trigger: Trigger<SelectActiveHead>,
     mut commands: Commands,
diff --git a/src/main.rs b/src/main.rs
index cfd26e8..b0055aa 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,4 @@
 mod abilities;
-mod active_heads;
 mod aim;
 mod alien;
 mod backpack;
@@ -8,7 +7,7 @@ mod cash;
 mod control;
 mod cutscene;
 mod gates;
-mod heads_ui;
+mod heads;
 mod keys;
 mod loading_assets;
 mod loading_map;
@@ -99,7 +98,6 @@ fn main() {
     app.add_plugins(alien::plugin);
     app.add_plugins(cash::plugin);
     app.add_plugins(player::plugin);
-    app.add_plugins(heads_ui::plugin);
     app.add_plugins(gates::plugin);
     app.add_plugins(platforms::plugin);
     app.add_plugins(movables::plugin);
@@ -117,7 +115,7 @@ fn main() {
     app.add_plugins(loading_map::plugin);
     app.add_plugins(sprite_3d_animation::plugin);
     app.add_plugins(abilities::plugin);
-    app.add_plugins(active_heads::plugin);
+    app.add_plugins(heads::plugin);
 
     app.init_state::<GameState>();
 
diff --git a/src/npc.rs b/src/npc.rs
index 1315e44..c2101cb 100644
--- a/src/npc.rs
+++ b/src/npc.rs
@@ -1,5 +1,5 @@
 use crate::{
-    GameState, active_heads::HEAD_COUNT, keys::KeySpawn, player::head_id_to_str, sounds::PlaySound,
+    GameState, heads::HEAD_COUNT, keys::KeySpawn, player::head_id_to_str, sounds::PlaySound,
     tb_entities::EnemySpawn,
 };
 use bevy::prelude::*;
diff --git a/src/player.rs b/src/player.rs
index 78781e0..8ef3d61 100644
--- a/src/player.rs
+++ b/src/player.rs
@@ -1,6 +1,5 @@
 use crate::{
     GameState,
-    active_heads::HeadChanged,
     alien::Animations,
     camera::{CameraArmRotation, CameraTarget},
     cash::{Cash, CashCollectEvent},
@@ -8,6 +7,7 @@ use crate::{
         Controls,
         controller::{CharacterControllerBundle, MovementBundle, PlayerMovement},
     },
+    heads::HeadChanged,
     loading_assets::GameAssets,
     physics_layers::GameLayer,
     sounds::PlaySound,