I really like this one! It's a great concept, though in its current state it feels very linear rather than puzzle-y. If there was a way to make it so you had to actually solve things with the mechanic I think it'd make the idea 10x better than it already is. Also, if there was a way to indicate to the player they were flipping I think that'd help, I'd often get lost after a flip because I couldn't tell what was happening, though that might even just be a level design point, where having different colors would help out. Overall though, I really do like this one, even if it was just a small tech demo! Great work.