Sektor is actually the code name for unit LK-9T9; the first of three prototype cybernetic ninjas built by the Lin Kuei. Sektor was once a human assassin trained by the Lin Kuei. He volunteered for automation because of his strong loyalty for the clan. More machine than man, Sektor survives the Outworld invasion - he has no soul for Shao Kahn to take.
END SCREEN: After eventually terminating Sub-Zero, Sektor is attacked by Shao Kahn's army. Unfamiliar wth these other world beings, Sektor fights back. He targets Kahn and all Outworld beings as threats to the Lin Kuei. Kahn's minions are no match for Sektor who eventually fights his way into Kahn's fortress. Once inside Sektor initiates his self destruct sequence. The resulting explosion is so massive that it closes the portal and returns the Earth back to normal.