If I were to describe this to a random person I would probably say "You play as the Lorax but you can possess people". Great game, the concept and the art are both awesome. Can't wait to see more of it!
Only issue I found was in stage 3, on the right side portion of the two switches you have to flip to progress. In the area with the red guard and two purple guards (the one with the door you have to open), if you possess the red guard and kill BOTH the purple guards, you get softlocked (or almost softlocked, with insane reflexes it's probably possible) on your way back when you have to pass through the area you can't avoid the detection of the red guard, and you can't run or hide either.