Game froze on me during level 4 when I was collided with what appeared to be a black bat or some sort of creature. I'd recommend adding some more details on the game mechanics. At first, I was using the [A,W,S,D] keys and was like something isn't right. Clicking the buttons on the screen worked a lot better.
It's a great idea though for the theme of the jam. Couldn't trust my own key inputs lol!