I really enjoyed the art style and the music! They both helped to enhance the mood and fit the style of gameplay very well. The design of the game was very well done. There were no bugs, issues, or unfinished portions of the game. It was a lot of fun, even though I am not a huge fan of platformers.

I was a little unclear on the sacrifice mechanic. I noticed that your limbs changed appearance and started looking like the enemy assets when you pick up a powerup, but I maybe I didn't get far enough to see what would happen if all of the assets were swapped. My only complaint was that jump was set to the Z key and that jumping felt awkward, especially if you needed to move back to the left while jumping.