Primal Rage is a traditional two-dimensional fighting game in which two players select characters to battle each other in one-on-one combat, or a single player finishes a campaign of fights against the CPU, over increasing difficulty. The final battle of the single-player game consisted of fighting all the other CPU monsters with an increased power bar, made available in a mini-game prior to the fight. A total of seven characters are available for players to select from (as listed below). Each character has his or her own specialized set of three attack moves and abilities. In the game, the object is to deplete the opposing character's health meter as fast as possible. If "Game Gore" (an option in some versions) is switched on, then a defeated character's heart will explode into a bloody mess, and their brain will dissolve to ashes.