Heyo, I like your game! I wonder how much the full version will cost, also, here are some suggestions:
Perhaps a complex healing system? You probably already have a medical system in progress though.
Some species could a different ability than slow-motion, but nothing TOO crazy to keep the game tactical.
Last suggestion, maybe make it so that you get to use unarmed? It'd be cool to just grab, rather than levitate, although, the levitation mechanic is awesome, keep up the good work!