I really don't remember playing anything like this before. it's an excellent idea. Building your own body with different parts was quite fun. It lacked a bit of polish. Some things didn't work so well for me, but I could feel what you wanted to convey. It's an excellent idea, and you managed to convey what you're doing very well. Good job, I hope to see more of this game.
A small observation, if I may: it would be cool to see a game like this following the path of humor (like you did when killing an enemy).