Thank you so much for playing! Also sorry I should've mentioned, to switch back you type in "minty" on the title screen.
The bullet limit for the character is pretty low, so if you miss some shots you won't be able to shoot again until a bullet goes off screen.
Yeah keyboard has been pretty finicky for a lot of people and I do apologize for that.
Also a tip for anyone trying to learn the bosses: watch how they behave on the game over screen. There's no random elements to any of the bosses so if you wanted to you could study their patterns.