Great stuff here! I had a similar idea when we were thinking of game concepts. This is pretty well executed, making a puzzle out of different player abilities that can be morphed over time. I think the music and artwork fit very well with a "magical pirate gets the treasure" theme. This was challenged and unique. If you were to expand it into something fuller, I noticed that the hitboxes of the spikes are a little big, so I got nicked at times I didn't expect. Great work!