I played the first and the second level and I had a lot of fun. Unfortunately I wasn´t able to enter the third level. Perhaps you didn´t mark the collider as trigger. Everything else worked well. I had a lot of fun playing your game. The controls feel smooth and I love the graphics. The animations fit your art style very well. Did you just scaled the character or did you also use different sprites? Good Job.
I´ve submitted a local multiplayer game: https://itch.io/jam/brackeys-4/rate/722755. I would be happy to get your feedback on it. :-D