Great game! Felt a bit short: I would have loved some puzzles tied to the different missing orbs. Attack was decent for the bosses but not very useful for other enemies (it flies so far you have to back way up for it to hit anything on the ground). Maybe have a melee attack option? Tree boss was cool but there was nothing to stop me from cheesing it by backing up really far and using my slingshot.
I loved the music and sfx! Wish there was a jump sfx though.