Very nice art in the cutscenes and the neuro sprites. The audio was good too.
I like the idea of the pins giving you different abilities, and the game controls pretty well. The weapons felt a bit clunky to use though. I tried playing through with the OSU tablet but felt it didn't work so well, unless I'm missing something. I retried with the pickaxe that was more straight forward to use at least.
The final boss against Evil was cool and pretty tricky. But once I figured out you could jump on top of her and spam the pickaxe it wasn't too bad.
Nice job!