This is really fun! I loved getting the different powerups! The only one I disliked was charge because I couldn't quite figure out what it did. I really loved the idea of how going through different doors took you into new windows!
I had a couple small issues, one being that going too far downward caused my character to get lost somewhere. The other issue I had was when I had X'd out of the game, when I tried to open it again it crashed a couple times before it would work again. Not really sure what that was about.
I also had an issue where in some rooms I couldn't go out certain doors, which was especially annoying when the timer appeared on that room.
If I had to change anything, it would be the game blocking off paths near the edges of the screen, and either a way to explain the powerups, or get rid of charge.
Also do the powerups stack? it seemed like when I would get another powerup it would be more powerful than the last.
I had a lot of fun and had to make myself quit playing after getting rank 10 with 4412 score.