When Shao Kahn makes a failed attempt at stealing the souls which occupy Earth's hell, Scorpion is able to escape from the nether region. Free to roam the Earth once more, Scorpion holds allegiance with no one. He's a wild card in Earth's struggle against the Outworld.
Spear: Back, Back, Low Punch.
Teleport Punch: Down, Back, High Punch.
(Can also be done in air)
Air Throw: Block in air when next to airborne opponent.
Combo 1: High Punch, High Punch, Up + Low Punch.
Combo 2: High Kick, High Kick, Low Kick, Low Kick.
Combo 3: High Punch, High Punch, High Kick, Back + High Kick.
Fatality 1: (Outside Sweep) Down, Down, Up, High Kick.
Fatality 2: (Close) (Use Block) Forward, Forward, Down, Up, Run.
Animality: (Close) (Use Block) Forward, Up, Up, High Kick.
Babality: Down, Back, Back, Forward, High Punch.
Friendship: Back, Forward, Forward, Back, Low Kick.
Stage Fatalities: (Use Block) Forward, Up, Up, Low Punch.
* Brutality: High Punch, High Punch, Block, High Kick, High Kick, Low Kick, High Kick, High Punch, High Punch, Low Punch, High Punch.
Scorpion is inadvertently released from his damnation in hell when Kahn's Plan to overtake that realm goes awry. Free to roam Earth, Scorpion is enlisted by the Emperor to aid him in his quest to destroy the chosen warriors.
But, his allegiance to Shao Kahn falters when he discovers one of the chosen warriors to be Sub-Zero. Scorpion has vowed to protect the former ninja as restitution for killing his brother.
Shao Kahn finds himself the victim of his own scheme as Scorpion is forced to turn against him, he destroys the Emperor and the Earth is returned to normal.
Scorpion finds himself once again roaming the pits of Hell, only to one day rise again.
* Brutalities can't be performed in the arcade version of UMK3.