Unveiling a new video, Lukewarm Media announced that a new game mode will be added to Primal Carnage on May 4th, 2014. It will include the initial roster with all 10 playable classes from the main game, plus new playable characters unique to this game mode: The Veteran, Ceratosaurus, and Big Alfie. It will also offer 10 fighting stages taken from Primal Carnage locations, plus three new bonus level (Triassic, Jurassic, and Cretaceous).
Ultimate Carnage HD will also feature up to 12-hit combos and Signature "EXTINCTION!" finishing moves and a Dinosaur-Human Tag Team option (you can strategically switch between two characters to perform unique combos).