Mortal Kombat vs. DC Universe is a crossover fighting game between Mortal Kombat and the DC Comics fictional universe, developed by Midway Games and Warner Bros. Games.\r
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The game takes place after Raiden, Earthrealms god of Thunder, and Superman, protector of Earth, repel invasions from both their worlds. An attack by both Raiden and Superman simultaneously in their separate universes causes the merging of the Mortal Kombat and DC villains, Shao Kahn and Darkseid, resulting in the creation of Dark Kahn whose mere existence causes the two universes to begin merging; if allowed to continue, it would result in the destruction of both. Characters from both universes begin to fluctuate in power, becoming stronger or weaker.\r
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The game features a story mode, playable from two different perspectives. The perspectives consist of one segment from the DC Universe side, and one from the Mortal Kombat side, each split up into various chapters. Depending on which side players choose, the characters from one universe see those from the opposite universe as the invaders of their own. Ed Boon, creative director of Mortal Kombat vs. DC Universe and co-creator of the Mortal Kombat franchise, did confirm that the player would have the ability to play as all the characters in the story mode at one point during development, but the story mode ultimately lacked story arcs for a few characters. Mortal Kombat vs. DC Universe also contains a mode called Kombo Challenge. Its aspect is individual[clarification needed] to the Versus and Story modes, where players must perform ten precreated combos of increasing difficulty.
