The four ghosts, which your character must avoid, each have a different color, name, nickname and personality. The pink ghost is Speedy, nicknamed "Pinky"; he's fast. The red ghost is Shadow, nicknamed "Blinky"; he's always behind you and it's hard to shake him. The light blue ghost is Bashful, nicknamed "Inky"; he's terribly shy and will actually run away from you. And the orange ghost is Pokey, nicknamed "Clyde"; he will try his best to get you, but he is slow.