Hey mate. A bit of feedback:
- The volume sliders don't work. Don't add it to the game if it does not work. Music is also too loud IMO.
- I don't like that in a couple of the later levels you need to kill yourself to go to the first room.
You could have added a win screen at the end. Since you did not, here is a lest level screenshot:
Edit: the game is great btw. Loved the way you used the theme.