Simpson's Bowling would be the best IF the sound was working!
Clarification: There is sound, it's just foobared most of the time. But I never played the game in the arcade so I actually kind of like how it sounds. It's all hectic and repeating, reminds me of some electronic music that I might dance to - if so inclined.
Marble Madness is another A+ trackball game.
I can't believe I forgot about marble madness! I'd play it more if only i had a second trackball.
And while it's probably better suited to a spinner than a trackball, I do love the feel of CAMEL TRY with a trackball.
For that matter I think Pachinko Sexy Reaction plays a lot better with a trackball (over buttons or joysticks), if you don't have a paddle.
Golden Tee, of course ... Kick (with the clown) is fun...
I have yet to find a Golden Tee that I like. They were all added relatively recently. Which version has a clown? I'd like some lovable characters to spice up the doldrum that is golf.
One last game: Rampart. Some people like it, I can't seem to maneuver my pieces well with the trackball. With my settings it's like playing Tetris except your joystick is broken.

If I could figure out why my trackball doesn't respond well in that game it might be fun.
Joseph Elwell.