Mortal Kombat

Lore & Background

At the dawn of creation, the Elder Gods shaped a multiverse of warring realms and set an ancient law: when balance tips, a tournament of champions must be fought to determine which realm ascends and which falls. Earthrealm, a world of mortals and martial tradition, has defended itself against the encroaching ambition of Outworld, the shadowed domain of the sorcerer Shang Tsung and his legions of the dead.

The line between loyalty and vengeance runs deep in this mythology. Scorpion, a ninja betrayed and slain in his own land, was resurrected by the spirit realm to wage endless war against the one who killed him. The Lin Kuei, an elite clan of ice-wielding warriors, produced Sub-Zero, whose frozen fists have turned the tide of countless battles. On the side of the Jade Empire, the royal family and their guardians—Kitana, Kung Lao, and the thunder-wielder Raiden—stand as Earthrealm's last bulwark against Outworld's endless hunger.

What makes the Mortal Kombat world resonate so strongly with Smash's spirit is its emphasis on personal vengeance, honor, and the weight of a single decisive strike. Every fighter carries a wound, a betrayal, or a debt of blood that drives them into the ring. In Smash, those same drives translate into aggressive, high-commitment playstyles: teleporting grabs, freezing projectiles, fan slashes, and sword flourishes that feel like a single, perfectly timed fatality.

In Their Own Story

The sky above the tournament arena crackled with violet lightning. Scorpion dropped from a pillar of black flame, his golden eyes locking onto the distant figure of Sub-Zero below. The ice warrior raised a gauntleted fist, and the ground between them froze in a radial burst. Scorpion grinned behind his mask. He had been dead once already. He could be dead again. But tonight, the Elder Gods' wager was not about survival—it was about who struck first. The crowd of spectral warriors roared. The bell rang. And the realm held its breath.

Reader's Guide

Mortal Kombat's crossover footprint in Smash is anchored by six playable fighters: Scorpion (arriving as DLC in Smash 4 and returning in Ultimate), Sub-Zero, Kitana, Liu Kang, Mileena, and Kung Lao (all joining Ultimate). Each brings a distinct playstyle—Scorpion's teleporting grab and fire projectiles, Sub-Zero's ice control, Kitana's fan-based combos, Liu Kang's rapid kung-fu strings, Mileena's fang-blade aggression, and Kung Lao's sword-based attacks.

The franchise is represented in Ultimate's stage roster through the Outworld stage, a dark, volcanic arena with shifting platforms and ambient fire hazards that capture the series' otherworldly tournament aesthetic. Stage hazards and environmental details echo the MK arenas fans know from the games.

In terms of story modes, MK fighters participate in the World of Light and Heroes of the Kingdom modes as selectable combatants rather than having a dedicated narrative thread. Their presence in these modes lets players slot them into the broader Smash storyline as allies or opponents.

Easter eggs and cross-universe touches include Scorpion's signature "Get Over Here" teleport move, which has become one of the most recognizable crossover moments in the series. Taunts, victory poses, and special-move animations reference MK's iconic finishers and character moments. The visual design of the Outworld stage, with its obsidian architecture and ember-lit sky, immediately signals the franchise to any long-time fan.

What makes MK's inclusion special in Smash is how its identity—personal vendettas, elemental duels, and the weight of a single killing blow—complements the series' broader theme of heroes and villains from every corner of gaming colliding in one arena. The Lin Kuei's ice, the Jade Empire's thunder, and the Netherrealm's fire all find a home in a single crossover universe.

Did You Know?

• Scorpion was the first Mortal Kombat character to appear in any Super Smash Bros. game, debuting as downloadable content for Smash Bros. 4 on Wii U and 3DS.
• The Mortal Kombat franchise originated as an arcade fighting game developed by Midway Games in the early 1990s, becoming one of the best-selling fighting game series of all time.
• In Smash Ultimate, Sub-Zero's ice-based special moves create frozen surfaces on the stage, a playful nod to the Lin Kuei clan's signature elemental power from the MK games.
• The Elder Gods, who oversee the inter-realm tournament in Mortal Kombat lore, share a thematic parallel with the cosmic, world-spanning stakes of Smash's own crossover universe.