I remember around 17 years ago, I knew a guy who had a Mac, and he had a Pac-Man clone game installed on it. By "clone" I mean it was not an official Pac-Man game, but it was still pretty much the same with the yellow guy chomping dots in a maze being chased by ghosts. It was very fun and had great music. I'd love to be able to find it somehow. Now assuming I were to find it, would I be able to play it on Mac OS X? Would Mac OS X be backward compatible with a Mac program from 17 years ago?