diff --git a/src/Arts.cs b/src/Arts.cs
index 3730281..25fe444 100644
--- a/src/Arts.cs
+++ b/src/Arts.cs
@@ -100,9 +100,4 @@ static class Arts
 
         Hierarchy.Pop();
     }
-
-    public static void Step()
-    {
-
-    }
 }
\ No newline at end of file
diff --git a/src/Mono.cs b/src/Mono.cs
index 59b5982..ab48d0c 100644
--- a/src/Mono.cs
+++ b/src/Mono.cs
@@ -6,9 +6,6 @@ namespace slash;
 static class Mono
 {
     public static double game_time = 0.0;
-    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 double intro_skip = 0.0;
     public static bool intro = true; // press to move until x condition or hold to skip
@@ -52,7 +49,6 @@ static class Mono
         Hold = 0,
         Mount = 1,
     }
-    // start mounted & in_cone
     public static BoxMode box_mode = BoxMode.Mount;
     public static DeltaBool in_cone = new(true);
     public static DeltaBool in_dist = new(false);
@@ -138,102 +134,6 @@ static class Mono
         }
     }
 
-    public static void Step()
-    {
-        // eat tail
-        if (slash[0] + slash_dir == slash[slash_len - 1])
-        {
-            slash_len--;
-            grow_buffer = 0;
-        }
-        else if (s_array[slash[0] + slash_dir] > -1)
-        {
-            // lose condition
-            bool stuck = true;
-            for (int i = 0; i < directions.Length; i++)
-            {
-                if (s_array[slash[0] + directions[i]] == -1)
-                {
-                    stuck = false;
-                }
-            }
-            if (stuck)
-            {
-                Log.Info("your stuck");
-            }
-            return;
-        }
-
-        bool in_or_around_box = s_array.InRange(slash[0] + slash_dir);
-        if (!in_or_around_box)
-        {
-            return;
-        }
-
-        if (eaten_latch.delta != +1)
-        {
-            if (slash_len == slash.Length)
-            {
-                // win condition
-                Log.Info("full slash");
-                return;
-            }
-            else
-            {
-                if (grow_buffer > 0)
-                {
-                    slash_len++;
-                    grow_buffer--;
-                }
-            }
-
-            // slither
-            for (int i = slash.Length - 1; i > 0; i--)
-            {
-                slash[i] = slash[i - 1];
-            }
-            slash[0] += slash_dir;
-        }
-
-        in_box.Step(box_space.InRange(slash[0]));
-        if (in_box.delta != 0) // 1 just in -1 just out
-        {
-            holes.Add(slash[0], slash_dir);
-            SFX.punch_through.PlayBox(slash[0]);
-            Arts.shake += slash_dir.ToVec3;
-        }
-        if (holes.ContainsKey(slash[slash_len - 1]))
-        {
-            holes.Remove(slash[slash_len - 1]);
-        }
-
-        update_s_array();
-
-        // eat
-        if (!eaten_latch.state)
-        {
-            eaten_latch.Step(food == slash[0]);
-            if (eaten_latch.delta == +1)
-            {
-                eat_timestamp = Time.Total;
-                grow_buffer += 3;
-                eaten++;
-
-                VFX.Play(slash[0]);
-                SFX.crisp_nom.PlayBox(slash[0]);
-            }
-        }
-        else
-        {
-            (bool viable, XYZi cell) = Feed();
-            eaten_latch.Step(!viable);
-            if (eaten_latch.delta == -1)
-            {
-                food = cell;
-            }
-        }
-    }
-
     static (bool, XYZi) Feed()
     {
         // [!] handle out of the box exception on tail
diff --git a/src/Program.cs b/src/Program.cs
index b436ba6..410c409 100644
--- a/src/Program.cs
+++ b/src/Program.cs
@@ -52,52 +52,6 @@ class Program
             if (!Mono.menu)
             {
                 Mono.game_time += Time.Step;
-                if (Mono.intro)
-                {
-                    Mono.step_time = Maths.min(Mono.step_time + Time.Step, Mono.step_step);
-                    Mono.step_t = Maths.u_clamp(Maths.min(Mono.step_time, Mono.step_step) / Mono.step_step);
-                    if (Rig.btn_select.delta == +1)
-                    {
-                        Mono.step_time = 0.0;
-                        Mono.step_t = 0.0;
-
-                        Mono.Step();
-                        Arts.Step();
-
-                        if (Mono.eaten > 0)
-                        {
-                            Mono.intro = false;
-                        }
-                    }
-
-                    if (Rig.btn_select.state)
-                    {
-                        Mono.intro_skip += Time.Step;
-                        if (Mono.intro_skip >= 1.0)
-                        {
-                            Mono.intro = false;
-                        }
-                    }
-
-                    if (Rig.btn_select.delta == -1)
-                    {
-                        Mono.intro_skip = 0.0;
-                    }
-                }
-                else
-                {
-                    Mono.step_time = Maths.min(Mono.step_time + Time.Step, Mono.step_step);
-                    Mono.step_t = Maths.u_clamp(Maths.min(Mono.step_time, Mono.step_step) / Mono.step_step);
-                    if (Mono.step_time >= Mono.step_step)
-                    {
-                        Mono.step_time -= Mono.step_step;
-                        Mono.step_t = 0.0;
-
-
-                        Mono.Step();
-                        Arts.Step();
-                    }
-                }
 
                 VFX.Frame();
             }