I thought the concept was really strong. It was a little difficult to understand how I was moving when I started. At first, I thought I was on a tank sort of control, so moving left would make the treads spin in opposite directions to make me turn left. But then I discovered that it's sort of like a translation to go left. But then I got stuck in a corner, and I couldn't get out. Cool concept, but I wish the animations were a bit faster. :)