Hi, congrats on your game! :) And OMG, I really loved your game idea haha... There's so much room for interesting puzzle creations. Maybe a simple addition could be that when you possess a person, you could grab another person and kill two people at once, earning like 2.5x points or something like that. Or perhaps knocking people off the building. Electrocution on electric fences, etc.
If you have some spare time, please try out my game. It's a classic space shooter from the 80s but with a personal touch. Please leave your honest feedback.