Pinky is one of the four main ghosts in the Pac-Man series. She attempts to ambush Pac-Man by moving parallel to him. In certain continuities, Pinky has been shown to have a one-sided crush on Pac-Man, which normally goes unreciprocated. She is good friends with Blinky, Inky, and Clyde.
While originally one of the main antagonists in the first Pac-Man arcade game, her role has largely been diminished to being a secondary antagonist or an ally in recent incarnations.