The third installment of "Mortal Kombat" retains the blood and gory attacks that defined the series. It introduces new types of the Fatality finishing moves, including Animalities. Other features new to the series were combos, predefined sequences used to perform a series of consecutive attacks. A "Run" button was also added, allowing players to briefly dash toward the opponent, as were "Kombat Kodes", an unlockable content system using various symbols that can be entered before two-player matches to achieve certain effects.