It's the kind of game you expect from the jam theme, but it does it really well. I actually really like the hand-drawn style. Breaking the platform by accident was kinda cool, though I imagine there was more planned for it that wasn't possible due to the time limit.
The only real issue I had was that the camera felt a little too zoomed in at the smaller scales, but that was literally it. The rest of the game is really solidly built.