This is a pretty looking game for just a week. Super well done!
I think you achieved the bullet hell but a little too well. The addition of platforming makes this a lot to ask for in the beginning and having enemies track your movement feels really harsh. I think the later levels with the 8 way bullet spitters and the immobile shotgunners feel a lot better to play against because it's easier to time your movement with their shots. I might have made the red and orange amogusboys just shoot straight and maybe jump, but not shoot at angles.
I was a little disappointed (and relieved) that I could just run past most sections.
A dang good jam entry. Good job and congrats on finishing!