I love fast paced games, if you play lots of games in this jam you'll notice this is rare, most games have a very slow movement, which for me is very annoying. I loved your movement.
You combat on the other hand, is very unpolished, I didn't like that the enemy makes the same sound when hit, as my character does, also a little knockback would be good, the punch feels more like blowing air or something, than an actual strong punch.
I liked the mechanics on the powerups too, very nice.
Overall a great submission!