Mortal Kombat 4 is a 1 vs 1 fighting game similar to other Mortal Kombat games, but this is the first game in the series with 3D character models. The player can choose from 15 different fighters at the start (and several unlockables later on). Many fighters from earlier games in the series make a comeback, while new fighters join in, such as Shinok, Fujin, Jarek, and Kai. Goro returns as a boss.