Cute little platformer! I like how the player has to make use of the differents sizes to get through the levels. The platformer physics are pretty good, but I felt that the interaction with the blue zone was a little inconsistent. It would be nice to have a little bit of coyote time to make some jumps easier and less precise.
The collectible are a nice touch. I had fun looking for optional paths to try to find every secret in the game :)