Neat! It's basically a digital version of those little handheld maze toys. It took me a little bit to figure out that the buttons point the level in the cardinal directions rather than rotating it like I would expect. I think I would have given up, but I suddenly noticed the color language you used to show each direction, which was clever. Other than having more levels, I wonder if centering the camera on the ball would generate a more dynamic experience. Just a thought.