Agree with others that it's really fun to get a taste of your full power and then get degraded to the bedraggled little creature. Fun mechanic for getting your abilities back that's almost like playing a metroidvania where you're back and forth across the platforms as you gain the float, and the jump, and the box smashes, etc. The controls also felt very nice to use.
Also found a way to get some pickups "early" by using the water/glide to throw you up to the platforms instead of the double jump - cheaky speed run skips are always fun.
If you want to continue with this game, or do a post jam patch, my biggest issue was that you can drop through the boxes on the right without getting a tail upgrade. Then you get stuck at the bottom with no double jump. Having the top right body upgrade require the glide would avoid the lock.
Great entry all around.