diff --git a/snake-game/src/core.rs b/snake-game/src/core.rs
index f797b14..a4ed236 100644
--- a/snake-game/src/core.rs
+++ b/snake-game/src/core.rs
@@ -76,7 +76,7 @@ pub fn spawn_snake(commands: &mut Commands) {
             End,
             Direction::default(),
             Velocity(0.0),
-            Sprite::from_color(Color::srgb(0.7, 0.7, 0.7), vec2(HEAD_SIZE as f32 * 0.8, HEAD_SIZE as f32 * 0.8)),
+            Sprite::from_color(YELLOW_500, vec2(HEAD_SIZE as f32 * 0.8, HEAD_SIZE as f32 * 0.8)),
             Transform {
                 translation: vec3(0.0, 0.0, 0.0),
                 ..Default::default()
diff --git a/snake-game/src/fixed_update.rs b/snake-game/src/fixed_update.rs
index 202434f..7ade808 100644
--- a/snake-game/src/fixed_update.rs
+++ b/snake-game/src/fixed_update.rs
@@ -49,10 +49,15 @@ pub fn head_moving(
     let _span = trace_span!("head_moving").entered();
     for (mut transform, mut direction, Velocity(velocity), head, entity) in query.into_iter() {
         let next_dir = head.0.clone();
+        let dir = direction.clone();
         let snake_path = &mut snake_path;
         let switch_direction = move |pos: Position| {
-            snake_path.insert(pos.clone(), next_dir.clone());
-            Some(next_dir)
+            if next_dir != dir {
+                snake_path.insert(pos.clone(), next_dir.clone());
+                Some(next_dir)
+            } else {
+                None
+            }
         };
         moving(velocity, &time, &mut direction, &mut transform, entity, &mut commands, switch_direction);
     }
diff --git a/snake-game/src/observers.rs b/snake-game/src/observers.rs
index 1b43a3d..b27bacf 100644
--- a/snake-game/src/observers.rs
+++ b/snake-game/src/observers.rs
@@ -24,8 +24,9 @@ pub fn clean_snake_path(event: On<GridBarier>, query: Query<&End>, mut snake_pat
 }
 
 /// Обработка события [GrowUp]
-pub fn grow_up_snake(_: On<GrowUp>, mut commands: Commands, query: Single<(Entity, &Direction, &Transform), (With<Tail>, With<End>)>) {
-    let (entity, direction, transform) = query.into_inner();
+pub fn grow_up_snake(_: On<GrowUp>, mut commands: Commands, query: Single<(Entity, &Direction, &Transform, &mut Sprite), (With<Tail>, With<End>)>) {
+    let (entity, direction, transform, mut sprite) = query.into_inner();
+    sprite.color = GRAY_300.into();
     commands.entity(entity).remove::<End>();
     let pos = Position::from(transform);
     let new_end = commands
@@ -34,7 +35,7 @@ pub fn grow_up_snake(_: On<GrowUp>, mut commands: Commands, query: Single<(Entit
             End,
             direction.clone(),
             Velocity(0.0),
-            Sprite::from_color(Color::srgb(0.75, 0.75, 0.75), vec2(HEAD_SIZE as f32 * 0.8, HEAD_SIZE as f32 * 0.8)),
+            Sprite::from_color(YELLOW_500, vec2(HEAD_SIZE as f32 * 0.8, HEAD_SIZE as f32 * 0.8)),
             Transform {
                 translation: pos.translation().extend(0.0),
                 ..Default::default()
diff --git a/snake-game/src/startup.rs b/snake-game/src/startup.rs
index e519891..df60d3a 100644
--- a/snake-game/src/startup.rs
+++ b/snake-game/src/startup.rs
@@ -20,7 +20,7 @@ pub fn startup(mut commands: Commands) {
     commands.insert_resource(ClearColor(SKY_600.into()));
     commands.insert_resource(SnakePath::default());
 
-    commands.spawn(Observer::new(crate::observers::clean_snake_path));
+    // commands.spawn(Observer::new(crate::observers::clean_snake_path));
     commands.spawn(Observer::new(crate::observers::grow_up_snake));
     commands.spawn(Observer::new(crate::observers::handle_collisions));
 
diff --git a/snake-game/src/tools.rs b/snake-game/src/tools.rs
index 13ce61e..91564f0 100644
--- a/snake-game/src/tools.rs
+++ b/snake-game/src/tools.rs
@@ -49,9 +49,7 @@ pub fn split_by_grid(src: f32, dst: f32, grid: f32) -> Vec<(f32, f32)> {
         let mut src: f32 = src;
         for step in old_grid_right as i32..new_grid_right as i32 {
             let step = step as f32 * grid;
-            // if step != src {
             output.push((step, step - src));
-            // }
             src = step;
         }
         output.push((dst, dst - src));
@@ -59,9 +57,7 @@ pub fn split_by_grid(src: f32, dst: f32, grid: f32) -> Vec<(f32, f32)> {
         let mut dst: f32 = dst;
         for step in new_grid_right as i32..old_grid_right as i32 {
             let step = step as f32 * grid;
-            // if step != dst {
             output.push((dst, dst - step));
-            // }
             dst = step;
         }
         output.push((dst, dst - src));
@@ -106,4 +102,11 @@ mod test {
         assert_eq!(split_by_grid(0.0, -1.5, 5.0), vec![(0.0, 0.0), (-1.5, -1.5)]);
         assert_eq!(split_by_grid(5.0, 3.0, 5.0), vec![(5.0, 0.0), (3.0, -2.0)]);
     }
+
+    #[test]
+    fn debug_split_by_grid() {
+        assert_eq!(split_by_grid(0.0, -1.5, 5.0), vec![(0.0, 0.0), (-1.5, -1.5)]);
+        // assert_eq!(split_by_grid(0.0, -1.0, 5.0), vec![(0.0, 0.0), (-1.0, -1.0)]);
+        // assert_eq!(split_by_grid(-5.0, -6.0, 5.0), vec![(-5.0, 0.0), (-6.0, -1.0)]);
+    }
 }