This was definitely very interesting! I haven't seen anything else like it. I got a little bit confused over how to sync; it seemed like sometimes when I tried to sync it thought I was trying to shoot. That or one of the selves shot another of the selves. It also seemed that if they had different arm position or decided to lie down on the floor facing up, I couldn't sync because I couldn't do that (or at least I couldn't figure out how to do that).
But overall a really fascinating shooter-puzzle-set-your-own-difficulty-in-a-way game ^_^ Thanks for making it!