Yeah, heh. I was bored and wanted to be the highscore.
It's actually not that hard... I mean if you can get 100, you can get 400, and so on. The worst part is, if your mouse sticks at all, you're screwed. My mouse really doesn't cooperate with me as well as it used to, so I can't really get the highscore now.
I don't think there's really a way to cheat it (at least by just bouncing it over and over and trapping it) It's probably quite possible to use one of those program speed changer things, and make things really slow, so it takes forever for the ball to land. Which of course, would allow you to never lose, but it would take 3 days just to get to 400 points.
I played it for about 10 minutes and got the 455 score... I actually could have gotten it higher if I didn't get bored after I beat the highest score.