I love this. Neat concept and the end product is pretty polished. It looks and sounds great, too. I loved watching the balls bounce around at the end of the level in this little Rube Goldberg machine I'd inadvertently created for myself. I will say that some of the mechanics, like clearing a level of all the balls, or going back to a previous stage of the level could have been explained earlier - there were one or two times when I sat waiting for the balls to bounce out their path before I could continue with a level. Overall, top stuff!