I found this to be okay. What I did not like about it was how it was hard to get control of the ball. I thought the up key was what made you go up. I just thought it wasn't that well drawn. It really is a pretty complicated game when you put your mind to it. It's really a matter of how soon you can press the space button.
Dang, these guys are fat. Why don't sumo wrestlers get heart attacks? It achieves well in its mediocrity. There just isn't a lot going on. You need much more variety.