diff --git a/src/filters.rs b/src/filters.rs
index 7596677..9a18af2 100644
--- a/src/filters.rs
+++ b/src/filters.rs
@@ -23,10 +23,6 @@ impl PassThroughFilter {
 			PassThroughFilter::Rotating(filter_angle) => {
 				let mut hsla = color.as_hsla_f32();
 				hsla[0] = (hsla[0] + filter_angle) % 360.;
-				// floating rem is not modulo!
-				if hsla[0] < 0. {
-					hsla[0] += 360.;
-				}
 				Color::hsla(hsla[0], hsla[1], hsla[2], hsla[3])
 			}
 		}
diff --git a/src/game.rs b/src/game.rs
index 204858f..015a268 100644
--- a/src/game.rs
+++ b/src/game.rs
@@ -25,7 +25,6 @@ pub struct GamePlugin;
 impl Plugin for GamePlugin {
 	fn build(&self, app: &mut App) {
 		app.add_event::<LevelStartupEvent>()
-			.add_event::<ChangeCharacterEvent>()
 			.init_resource::<CharacterMeshes>()
 			.insert_resource(CurrentLevel(None))
 			.init_resource::<CharacterList>()
@@ -42,8 +41,7 @@ impl Plugin for GamePlugin {
 					.with_system(player_movement_system)
 					.with_system(level_keyboard_system)
 					.with_system(camera_system)
-					.with_system(character_particle_effect_system)
-					.with_system(kill_character_system),
+					.with_system(character_particle_effect_system),
 			)
 			.add_system_set(
 				SystemSet::on_update(AppState::Win)
@@ -67,8 +65,6 @@ impl Plugin for GamePlugin {
 
 pub struct LevelStartupEvent;
 
-pub struct ChangeCharacterEvent;
-
 // Resources
 
 pub struct CurrentLevel(pub Option<LevelId>);
@@ -439,14 +435,14 @@ fn collision_event_system(
 
 fn change_character_system(
 	mut commands: Commands,
+
 	keyboard_input: Res<Input<KeyCode>>,
 	characters: Query<(Entity, &CharacterColor, Option<&Player>)>,
 	character_list: Res<CharacterList>,
 	audio_assets: Res<audio_system::AudioAssets>,
 	audio: Res<Audio>,
-	change_character_event: EventReader<ChangeCharacterEvent>,
 ) {
-	if !keyboard_input.just_pressed(KeyCode::Tab) && change_character_event.is_empty() {
+	if !keyboard_input.just_pressed(KeyCode::Tab) {
 		return;
 	}
 
@@ -627,20 +623,3 @@ fn level_keyboard_system(
 		}
 	}
 }
-
-fn kill_character_system(
-	mut commands: Commands,
-	character_query: Query<(Entity, &Transform, Option<&Player>), With<CharacterColor>>,
-	mut character_list: ResMut<CharacterList>,
-	mut change_character_event: EventWriter<ChangeCharacterEvent>,
-) {
-	for (entity, transform, player) in character_query.iter() {
-		if transform.translation.y < -512. {
-			commands.entity(entity).despawn_recursive();
-			character_list.0.remove(&entity);
-			if player.is_some() {
-				change_character_event.send(ChangeCharacterEvent);
-			}
-		}
-	}
-}