Cute art. The footstep sounds being panned based on your position relative to the center of your current screen is a bit strange I think. Footstep sounds could also potentially get annoying for some - I personally don't mind them at all.
The sound and art for the potion explosions are excellent. I cheesed the last enemy by standing in the upper left and throwing potions while double jumping.
Short (so far) and sweet, I'd play the full game. I'm looking forward to seeing what else you've got in store.