diff --git a/src/Mono.cs b/src/Mono.cs
index e88718c..f75d47e 100644
--- a/src/Mono.cs
+++ b/src/Mono.cs
@@ -10,6 +10,8 @@ static class Mono
     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
     public static bool menu = true;
 
     public static Pose box_pose = new(0, -3 * U.cm, -10 * U.cm);