Well done! Happy you were able to submit such a complete game given your busy time traveling. It turned out pretty good!
I really liked the core concept here, and limiting the number of heads you can leave behind to just one gave you some interesting design space. There are plenty of games about "self destructing to leave a platform" or something, but this one stands out.
I think the levels just needed a little more tuning. I couldn't get past level 4 or 5 because I needed to push a body off a ledge but it kept getting stuck in a corner because the space was too small. Still good and I enjoyed my time.
Congrats on finishing!