Nice but Hard!
Nice idea, but hard... I think I played it with the slow problem, he walks slower than usual, and sometimes get slower.
I suggest the button work only one time per press, not continuous. If I hold the Dash button, he dashes until I release it, what sometimes throw me on some hole... I think it will be better if the button works only when press, just like the Buster button.
The stages are hard, lots of holes, but cool for being different than usual.
Nice programming and start design ;D (downloading, game start and game over)