The core game
Multiplayer Mode - Up to four players can play simultaneously; if there are less than four players, CPU-controlled players fill the vacancies.
Classic Mode - The original Ms. Pac-Man arcade game, from 1981.
Game ID: SLPS-03000
Ms. Pac-Man - Maze Madness for Sony PlayStation was released on December 28, 2000 in Japan.
Sony PlayStation Network [PSOne Classics] (feb.26, 2014) "Ms. Pac-Man Maze Madness [Model NPJJ-00705]