Needs better music
I liked the game, but there should be different music for different levels. Music sets the mood in the game, and solving puzzles to calming music may be fine, but you want something with a bit more "oomph" while fighting bosses or running away from evil rock dudes. The music kind of killed the mood in these situations. Other than that, pretty good. Could've been longer, but I liked how there were several different elements in the game (platforming, puzzle solving, and fighting).