The idea here is cool, but there a couple of small things you might want to rethink. The bigget thing is that the game is super punishing- getting hit once means you have to restart the whole thing, which gets super frustrating. It's especially frustrating in one level- the first one where it gets all green- because right after you spawn in an enemy will immediately touch you and kill you if you didn't know he was already there. Having something that's pretty unreasonable to react to end all your progress immediately can be a bit much. I'd also recommend you make the collider and hit detection for the player a little smaller, since it's a bit wide at the moment. Still, cool idea.