I did this for a little while when it first came out and actually ranked pretty well, however the novelty wore off quickly. You basically just fold it into the basic shape, attach bands in a certain places and then have it attempt to optimize it. Then you shake it and let it optimize again hoping to get it out of a local max. Repeat, a lot. Not much fun or much of a game compared to other such applications i've seen (there was a google techtalk on using human computation via games for object detection in photos and other things).