Interesting concept! The music is solid, the controls feel good, and I like that you offer a variety of levels to try. I did get lost out in outer space after trying to see how fast I could get moving if I just held the button down, but I guess I got what I deserved for that. Overall, this is a nice complete fun experience. I would maybe consider expanding the mechanic a bit more? Potentially different surfaces require different colors or something like that?