characters could move in three dimensions, and Mortal Kombat 4 was the first to use 3D computer graphics. From Deadly Alliance to Mortal Kombat: Deception, characters had three fighting styles per character: two unarmed styles, and one weapon style. While most of the styles used in the series are based on real martial arts, some are entirely fictitious. Goro's fighting styles, for example, are designed to take advantage of the fact that he has four arms. For Armageddon, fighting styles were reduced to a maximum of two per character (generally one hand-to-hand combat style and one weapon style) due to the sheer number of playable characters. Mortal Kombat vs. DC Universe dropped multiple fighting styles for most characters in favor of giving each character a wider variety of special moves 2011's Mortal Kombat returned to a single 2D fighting plane, although characters are rendered in 3D; unlike previous MK games, each of the controller's four attack buttons corresponds to one of the character's limbs, the buttons thus becoming front punch, back punch, front kick and back kick ("front" indicates the limb that is closer to the opponent, and "back" indicates the limb that is farther away from the opponent). This concept takes heavy inspiration from Tekken. Mortal Kombat: Deception and Mortal Kombat: Armageddon feature "Konquest", a free-roaming action-adventure mode that significantly expanded on the single-player experience. Both games also include distinct minigame modes such as "Chess Kombat", an action-strategy game similar to Archon. Two other bonus minigames, "Puzzle Kombat" inspired by Puzzle Fighter and "Motor Kombat" inspired by Mario Kart, feature super deformed versions of Mortal Kombat characters. The games also contain various unlockable content and hidden "cheats". Finishing moves One of the most notable features of the Mortal Kombat series is its brutal and gruesome finishing moves, known as "Fatalities". The basic Fatalities are finishing moves that allow the victorious characters to end a match by murdering their defeated, defenseless opponent. Usually Fatalities are exclusive to each character, the exception being Mortal Kombat: Armageddon, which instead features Kreate-A-Fatality, a feature that allows players to perform their own Fatalities by conducting a series of violent moves chosen from a pool that is common to all characters. Other finishing moves in the various Mortal Kombat games include Animalities (introduced in Mortal Kombat 3), in which the victor turns into an animal to violently finish off the opponent; Brutality (introduced in Ultimate