Quite a cool game, I've been looking for something similar for a long time!
I can say that if it had coyote time and input buffering, it would be even better. And also the moment when you have to run away from Wimsun is too difficult, you can make it a little slower.
Otherwise, everything is fine, and I liked this game! I also really liked the graphics and this mix of styles between the original Undertale and Pizza Tower.