Reiko is a general of the armies of Shinnok, Shao Kahn, and the Brotherhood of Shadow. In MK4, after Shinnok's forces are defeated, Reiko disappears, before reemerging to join the fight against the Earth defenders. His ending merely had him walking through a portal and disappearing, which was later enhanced to include him seating himself on Kahn's throne and wearing his helmet, which was also mentioned in Deception's Konquest mode but has since been explored no further in the series canon.