I'll add more soon! 1.0: added 9-24 (@vladcrb17, if you are seeing this and plan to remix it, here are the bosses that would have me really grateful if you did them: 25-32, all the grandmaster bosses on https://scratch.mit.edu/projects/1378836463/, 54 and 45 (as those are me and my best friend's favorite numbers respectively), and maybe some others.)
@brizluca for numbers credits of 22 and 23 in the project where they are first showcased. @danieltub for 15 and base for 13 @Noob_Productions_123 for base for 14, 16, and 17. @vladcrb for awesome game (and -3 bgm).