Feel fun to play with. There is a secret code too. (hint- It's famous and in a lot of old games) Press 1 through 0 for different screen transparencies. Q is 0, and the default is 50. Hit Go to restart if you lose the ball. There is another code, it will most likely lag the game a bit if used too much. The only hint I will give about this one is go counterclockwise.
If you press L it gets bigger, S smaller, and R is reset. G turns on gravity (one use must press go again to reuse if turned off) and N turns gravity off. Gravity slightly lags the game. Have Fun! Everything- Me