Very creative use of UI! I gave you top marks on audio despite your game not having it,cause you still had "sound design" (Wink wink nudge nudge). I also like how there were new gimmicks at every twist and turn, and how there were clever ways around some obstacles (especially in the case of the last level). My only gripe is that I wish the Y position of the player was locked to the volume slider whenever it was touching, that way the collision doesn't get wonky, and I wouldn't have to jump to use the cool volume slidebar mechanic. Other than that, solid game!