He was a secret selectable character in Ultimate Mortal Kombat and the arcade verson of Ultimate Mortal Kombat 3, and an unselectable secret character in most versions of the original Mortal Kombat 3 and the Sega Saturn version of Ultimate Mortal Kombat 3. The current Sub-Zero is Noob's brother, who first appeared in Mortal Kombat II ( see below). Introduced in Mortal Kombat Game/Character
6 Introduced in Mortal Kombat: Deception.
5.1 Introduced in Mortal Kombat: Tournament Edition.5 Introduced in Mortal Kombat: Deadly Alliance.3.1.1 Introduced in Mortal Kombat Trilogy.3.1 Introduced in Ultimate Mortal Kombat 3.
