Actually, I think this game is just broken. It's easy to get huge scores in insane mode, but difficult to get much at all in easier modes because there aren't enough balls... sometimes waiting over a minute for any balls to show up -_-
Note that the negative comments are mostly from the kind of people who use the word 'retarded' casually and thoughtlessly... idiots in other words. This is actually very cleverly made; there are issues with the controls, but it's only to be expected with something this ambitious.