likey
hitboxes were hard to figure out at first but pretty cool albeit a tiny bit cramped once i got it. hitting the boss has a rad effect but since their invincibility frames are so massive it kinda seems like it just happens randomly. i would say turn that down and bump up their hp so you gotta worry about hitting them
favorite part: you can whack away familiars and they stop shooting atcha
i am very good at sans-like things so i was doing great on kosuzu until she just decided to stop shooting and leave the screen at 1/3 hp