Biff Atlas

Biff Atlas is a boss character who appeared in Luigi's Mansion. During the game's events, BIff Atlas was a blue colored ghost. He died at the age of 26, though prior to this he was a body builder. Despite being a member of the undead, Biff Atlas still continued working out in the mansion's training room. To get his attention, Luigi would have to punch the punching bag, which in turn would hit Biff Atlas, thus starting the fight.