Great job with this rage platformer! I'll admit I couldn't get past the first level after the tutorials. Are you supposed to turn around and use the wall jump there? I couldn't pull it off.
Normally I'd say the character is a little too floaty, but I'm guessing that is part of the challenge for this type of game.
This may just be because I couldn't get past the first main level, but I'd suggest more of a gradual increase in difficulty after the tutorial ends.
Overall I had fun and good luck with this project!