Tremor

In Mortal Kombat: Special Forces, Tremor appeared as a brown ninja who escaped from Special Forces custody during a prison break orchestrated by Kano, to whom he is described as being blindly loyal. He is a boss for one level, guarding a portal to Outworld. Extremely muscular, he was able to create earthquakes in the ground by punching it (similar to Jax), and also had the ability to fire a three-directional fireball.

Trivia
Tremor was originally planned to be in Moron Kombat Trilogy at one point, but for unknown reasons was replaced in favor of Rain, who had already appeared in the 16-bit console versions of Ultimate Mortal Kombat 3, Tremor can still be seen in the game's instruction manual, incorrectly labeled as Ermac, depicted as an orange ninja along with Rain's original bio (Which he evidently inherited with slight alterations) Both can be seen here. Rumors have persisted for the character's inclusion in the main fighting series of MK games from Mortal Kombat: Deadly Alliance up to Mortal Kombat: Armageddon. Despite fan interest in the possibility of him making an appearance in Armageddon, Tremor was confirmed by a Midway representative on the company's official discussion forum as not being present in the game.