Tbh almost every problem in this game can be simplified to "I didn't playtest this game at all xp"
I think I have this weird ideology that is "Being generic is worse than being bad." That's why I always spend so much time on things that feel cool rather than things that make the game fun.
Maybe next time when I join a short jam like this, I'll try not making the game too cool and instead put more time into playtesting. Maybe a generic platformer, except the weapon shoots bullets that go in reverse, like in Tenet.