diff --git a/Assets/meshes/assets.glb b/Assets/meshes/assets.glb
index 3ba69a5..2f48910 100644
--- a/Assets/meshes/assets.glb
+++ b/Assets/meshes/assets.glb
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:03e6766296a916fbb3471e3601eb0ed0e2e82bda18b34bf5233116f2e2b80593
-size 405108
+oid sha256:6366777e86535b0c19c4c8ef67940ac9e49112fd3168695b2c9b8ee9099e4d04
+size 407316
diff --git a/src/Arts.cs b/src/Arts.cs
index edcf11a..2a6f251 100644
--- a/src/Arts.cs
+++ b/src/Arts.cs
@@ -54,8 +54,12 @@ static class Arts
         // box
         Hierarchy.Push(Mono.box_pose.ToMatrix(Mono.box_scale));
         meshes["InsideOut"].Draw(mat_unlit, Matrix.Identity);
+        meshes["InsideOut"].Draw(mat_backbox, Matrix.Identity);
         meshes["Corrugation"].Draw(mat_unlit, Matrix.Identity);
-        meshes["Corrugation"].Draw(mat_backbox, Matrix.Identity);
+        if (Mono.menu)
+        {
+            meshes["Tape"].Draw(mat_mono, Matrix.Identity);
+        }
 
         // snake
         float fall_t = 0.0f;
diff --git a/src/Mono.cs b/src/Mono.cs
index 5d1c916..d5940d0 100644
--- a/src/Mono.cs
+++ b/src/Mono.cs
@@ -8,9 +8,11 @@ static class Mono
     public static double step_step = 60.0 / 80; // 80|100|120 bpm
     public static double step_time = 0.0;
     public static double step_t = 0.0;
+
+    public static bool menu = true;
+
     public static Pose box_pose = new(0, 0, -10 * U.cm);
     public static float box_scale = 1.333f * U.cm;
-
     public const int SD_X = 2, SD_Y = 1, SD_Z = 2;
     public static SpatialArray<int>
         s_array = new(SD_X, SD_Y, SD_Z, -1),
@@ -98,11 +100,14 @@ static class Mono
         }
 
         // slither
-        for (int i = snake.Length - 1; i > 0; i--)
+        if (!menu)
         {
-            snake[i] = snake[i - 1];
+            for (int i = snake.Length - 1; i > 0; i--)
+            {
+                snake[i] = snake[i - 1];
+            }
+            snake[0] += snake_dir;
         }
-        snake[0] += snake_dir;
 
         // gravity
         bool grounded = false;