Namco Museum Battle Collection is a 2005 video game compilation developed by Tose and published by Namco for the PlayStation Portable; the first Namco Museum since the PS1 series to be developed in Japan. It includes 21 games - four of these are brand-new "arrangement" remakes of older Namco games, while the rest are emulated ports of Namco arcade games from the 1970s and 1980s. These ports include an options menu that allows the player to modify the in-game settings, such as the screen orientation and number of lives. Players can send one-level demos to a friend's console via the "Game Sharing" option in the main menu.

Pac-Man, originally called Puck Man in Japan, is a 1980 maze action video game developed and released by Namco for arcades. In North America, the game was released by Midway Manufacturing as part of its licensing agreement with Namco America. The player controls Pac-Man, who must eat all the dots inside an enclosed maze while avoiding four colored ghosts. Eating large flashing dots called "Power Pellets" causes the ghosts to temporarily turn blue, allowing Pac-Man to eat them for bonus points.