I like that the player's sprite had a bouncy default state, it gave the game a bit or character and lightheartedness. It also made me wonder how that could be used as part of the gameplay for levels. One thing that made the game a little too easy for me was that you could keep pressing the jump button in midair and basically fly over the obstacles. I can already tell that if the midair jumping was a little more limited, it could lead to some satisfying platforming. That being said, I did have fun bouncing around like crazy. I could see how having that much jumping power could also be used against the player ( like spikes on the ceiling).
Honestly, I was ready to keep playing if there were more levels so that I could see where you take it, though gamejams don't always leave enough time for extra levels :(