A Brutality is a finishing move from the Mortal Kombat fighting game series. They were first introduced in the Sega Genesis and Super Nintendo home ports of Ultimate Mortal Kombat 3 and all versions of Mortal Kombat Trilogy in 1996. Brutalities were another form of Mortal Kombat’s trademark Fatalities, which included Babalities, Animalities, and Friendships. Many saw this an offshoot of Killer Instinct's "Ultra Combo" and "Ultimate Combo".
A Brutality allowed a player to pull off an extraordinarily long combo to kill an opponent. These combos appeared in Ultimate Mortal Kombat 3 and Mortal Kombat Trilogy before they were dropped, alongside the other forms of finishing moves when Mortal Kombat 4 was released. They were introduced following the release of Killer Instinct in 1994. In the game, there was a finishing move known as an Ultra Combo in which a fighter brutalized an opponent with a tremendous combo of over twenty hits. Mortal Kombat, to possibly outrival their adversaries, incorporated their own form of a deadly combo, known as Brutalities. In doing one step further, Mortal Kombat’s deadly combo-finisher actually killed an opponent, making them explode in a fantastic, bloody fashion.
Brutalities were, however, very difficult to perform. Upon defeating an opponent, “Finish Him” or “Finish Her” would appear on the screen, and the player would then be able to perform a Fatality. To do the Brutality, one had to perform a long combo by quickly pressing an eleven button combination. Even if successful, the Brutality had what was considered a lackluster payoff — the opponent would disappear in a fiery explosion, accompanied by an unrealistic amount of bloody bones and limbs covering most of the screen. In some versions, the opponent's bones and limbs would simply fly off of the screen.
Because of its extreme difficulty in performing and unspectacular results, the Brutality was unpopular. It was dropped after Mortal Kombat Trilogy and not featured in Mortal Kombat 4. Brutalities were brought back for Mortal Kombat: Shaolin Monks in 2005. They were upgraded into a three dimensional environment, and they were easier to pull off and were more spectacular in comparison to previous games. Here they function as a power-up mode of sorts that lasts until all fatality orbs are depleted and turns normal attacks into devastating combo assaults, with strong attacks and throws instantly killing the enemy.
Mortal Kombat XEdit
Brutalities makes a return in Mortal Kombat X. The Brutalities are now depicted as a combo finisher, and can be only be done if player's combo is done on an opponent that is low on health, during the final round. The sequence will alter the player's original combo-ending attack with a more lethal-finishing move which finishes off the opponent in a more violent fashion similar to a Fatality. An example of a Brutality being used as a finisher has Quan Chi using his throw where he forces an opponent into a portal, the Brutality finisher has Quan Chi push his opponent in the portal but instead his opponent is ripped apart and their remains shower Quan Chi.
It has been confirmed that Mortal Kombat X will feature over 100 Brutalities. Brutalities aren't available immediately and require different circumstances to be met before being able to perform them, a mechanic similar to performing Babalities in Mortal Kombat (2011).
- Brutalities were originally set to appear in Mortal Kombat (2011). However, Ed Boon later confirmed via twitter that the finisher was cut due to the short amount of time they had to finish and release the game. 
- A move similar to the Brutality appeared in Mortal Kombat: Deception, in the form of one of Li Mei's Fatality. Her Fatality was to rapidly strike the opponent repeatedly, then to step back and pose as her opponent twitches for a moment, before exploding in a pile of gore.