Namco Museum Volume 1 Sega Dreamcast. Remember those great arcade games of the '80s, like Pac-Man and Galaga? Well, they're now bundled together for retrogaming marathons. Namco Museum Volume 1 features true-to-the-arcade versions of six titles, including Ms. Pac-Man, Dig-Dug, Pole Position, and Galaxian. The games have an arcade debug feature to add more credits or change the difficulty settings. Players can save their high scores and game progress to the separately sold Virtual Memory Unit.