Cool game! I loved the art style and the designs of the buildings/characters; it looks bright and colorful, which I truly enjoyed. I also like the steady difficulty curve, making it slowly ramp up with each level.
However, I think something that could be tweaked is the physics of the player character. The player moves/jumps so fast that it can be somewhat annoying trying to get him across platforms. This is especially apparent when the space to enter an area is the size of one tile, making it hard to time a jump that will clear that small gap.
Another minor gripe is that the sound effects in the game could get somewhat grating. I would recommend pitching them down slightly.
I really liked the challenge, though! The more I played, the more I needed to factor in the effects of the teetering, which made me really think about the order in which I needed to fix the cracks. That strategizing really helped me to enjoy my playthrough.
This was a cool experience. Good job on the game!