Known Bugs:
Music will duplicate every time you leave and come back to start screen, including when you die.
Sometimes enemies will stop spawning after the room is cleared, the only fix is starting the game over and usually they will spawn like they should again
All white/black bullets may be destroyed on impact even if only one of them hits an enemy, so they can only killed one at a time (other colors not affected)
Anything else that goes wrong, hope you'll let me know! :)