Actually very-very cool.
Completed the game 3 times: with x8 damage, with ~100% stun and speed/hp only
1) x2 damage is OP when you have a gun
2) Roundhouse kick is a really fun mechanic to take out crowds, some invul during it would come in handy.
3) Speed/HP only was the pacifist run. +50HP sounds cool but really you never drop below 50%.
I would say stun duration is the least useful one there
Morning visual effect + music gives off hotline miami vibes tbh. Pixel italic font looks PERFECT
Great job!