Pac-Man 2 can refer to either one of four games:
Ms. Pac-Man, the second game in the Pac-Man series
Super Pac-Man, the second game officially made by Namco
Pac-Man 2: The New Adventures, the side-scrolling puzzle game based on Pac-Man
Pac-Man Championship Edition, Toru Iwatani's "official" sequel to the original Pac-Man for the Xbox 360 via Xbox Live Arcade
