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.[3] Depending on which side players choose, the characters from one universe see those from the opposite universe as the invaders of their own. The player has 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.[3][4] Mortal Kombat vs. DC Universe also contains a mode called "Kombo Challenge", where players must perform ten pre-created combos of increasing difficulty.[5][6]
"Free-Fall Kombat" is a new mode introduced in Mortal Kombat vs. DC Universe. In stages where it is allowed, two characters can battle in mid-air for the chance to land on top of the opponent and perform maximum damage.
Intertwined within fight matches, which are played in a 3D fighter style, are new gameplay modes, such as "Free-Fall Kombat" or "Falling Kombat," which are activated automatically after throwing the opponent to a lower level in the arena. The players can fight in the air during the fall in a quasi-mini-game, with one player having to hit certain buttons to be above the other during the fall and land on the other player when the fall ends.[7] "Klose Kombat" is a mode the players can enter during a fight, causing the characters to lock with each other and the perspective to change to a close-up shot of the two, to make for an interval of close-quarters fighting.[3] A "Test Your Might" mini-game is also worked into the gameplay; while fighting in certain areas, the player can smash the opponent through a series of walls and engage in a tug-of-war with the damage meter at the top of the screen. The player on the offense presses buttons to increase damage given, while the player on the defense presses buttons to decrease damage taken.[7]
Another in-fight feature called "Rage mode" is introduced in Mortal Kombat vs. DC Universe. The Rage mode is governed by a rage meter placed below the player's health meter that fills progressively every time the player receives damage or attacks. Once the meter is completely filled, Rage mode can be activated and lasts for several seconds. Rage mode enables the player to break the opponent's guard on the second hit, prevents the attacker from experiencing hit stun, knockdown or pop-up, and increases the damage of an attacker's moves.[7] During fights, characters show permanent signs of damage, such as bruises, scrapes, bleeding, and broken or torn clothing.[8] All of the characters except Darkseid, Shao Kahn, and Dark Kahn have finishing moves; the Mortal Kombat characters and the DC villains can execute Fatalities, while the DC heroes can execute moves called "heroic brutalities," which function in the same manner but do not kill opponents, in order to stay in tone with the heroes who have an established reputation of never taking a life.
