Ms. Pac-Man is an arcade video game from the Golden Age. It was produced by Illinois-based Midway Manufacturing corporation, the North American publisher of Pac-Man. Ms. Pac-Man was released in North America in January 1982, and is one of the most popular arcade video games of all time. This popularity led to its adoption as an official title by Namco, the creator of Pac-Man, which was released in the United States in late 1980. Ms Pac-Man introduced a female protagonist, new maze designs, and several other improved gameplay changes over the original Pac-Man. Ms. Pac-Man became the most successful American-produced arcade game, selling 115,000 arcade cabinets.
Galaga is a Japanese shoot-'em-up arcade game developed and published by Namco Japan and by Midway in North America in 1981. It is the sequel to 1979's Galaxian. The gameplay of Galaga puts the player in control of a spacecraft which is situated at the bottom of the screen, with enemy aliens arriving in formation at the beginning of a stage, either trying to destroy, collide, or capture the spaceship, with the player progressing every time alien forces are vanquished.