Very cute and cool, my 2 gripes are that the larger (I assume main) player has less definition in contrast than the small one, and loses attention because of it, the other thing is that it's a tad flat - more contrast to define foreground elements like the platforms themselves would make it easier to play imo. Great HUD, really looks the part :)
It's great, but maybe you could put some broken glass on the floor?
Cool