Wikipedia
Ermac is a fictional character from the Mortal Kombat fighting game series. Originating as an imaginary character born of rumors by players and fans over an audit-menu listing and alleged glitch in the first game, which were never explicitly dispelled by Midway Games and were further perpetuated by video game magazine Electronic Gaming Monthly (EGM), he transformed from urban legend to a player character in Ultimate Mortal Kombat 3, as a red palette swap of Scorpion with his own special moves.
A mysterious psychokinetic combatant composed of multiple warrior souls, Ermac made his series debut as an enforcer to evil Outworld emperor Shao Kahn in the two-dimensional games, then played a central role in Mortal Kombat: Deception by gaining a distinct design and breaking free of Kahn's control to ally with main series protagonist Liu Kang. He has had lesser roles in subsequent game storylines, including returning to his series roots in the 2011 Mortal Kombat reboot, while in Mortal Kombat X, he serves in the guard of new Outworld ruler Kotal Kahn.
Ermac has appeared in other Mortal Kombat media such as the animated series Mortal Kombat: Defenders of the Realm, the web series Mortal Kombat: Legacy, and on official series merchandise. Critical and public reception has been mainly positive, with appearances on multiple lists of the top characters and Fatality finishing moves in the Mortal Kombat franchise from video game and mainstream publications, while his origins have been rated among the most-memorable legends of general video gaming.