Looks like somebody got a new trackball from the trackball fairy.
Long story short, you'll have to figure it out man. Understand that a trackball is not a standard gaming controller on the pc, so aside from the random tiger woods/ golden tee game, technically speaking there are ZERO pc trackball games. That being said, some low-quality homebrew games are designed with the trackball in mind and occasionally you'll run across a pc game that just happens to work well with a trackball.
There are several sticked threads throughout the boards lists pc games that work good on a cab, go through them and you'll find some.
But judging by your other post you aren't going to find anything that will satisfy your crazy, graphics-whore friends. Sorry Dude