Pac-Man
Probably one of the most defining videogames of all time. Pac-Man has players guiding the hungry little yellow face around a neon maze, eating pellets and dodging ghosts. It's simple, fun and addictive.
Legacy...
The NES game was originally released in America and Europe in 1990, but has seen countless ports and remakes both before and after. You'll never have a hard time getting ahold of a copy of Pac-Man. It's probably even included as a free bonus in many commercial games out now. You'll have to decide for yourself if 500 points is worth having the chance to play it on your Wii.