Looks like you guys got quite a lot done! Several levels, multiple abilities, and enemy types. Very impressive under the time constraints.
I love the quirky, colourful art style, and the variety of enemies really push you to move in different ways as you progress.
The level design itself could have done with a bit more focus, it's an action oriented game, so that's not really what the game's about, but there was a lot of empty space in the environments. Trim down the fat there, and maybe add some feedback when things get hurt and you're on to a winner!