Considered the "lost ninja" in Mortal Kombat history, Tremor was supposed to be in many Mortal Kombat games, going as far back as Ultimate Mortal Kombat 3. He was even featured in the instruction manual for the game, where he is incorrectly depicted as an orange ninja with the same bio as Rain. Tremor finally got his moment in the spotlight as a member of Black Dragon and a boss fight in Mortal Kombat: Special Forces, which is generally considered the worst game in the franchise.
Many rumors had persisted through the PS2/Xbox era of Mortal Kombat fighting games that Tremor would become a playable character. He was cut from the final mix every time. Tremor has since built a cult following of sorts among hardcore MK fans.
Tremor appears once more during the bonus Challenge Tower missions that appear exclusively on the PlayStation Vita version of Mortal Kombat. Other characters in the missions appear shocked and comment that they believed his existence to be only a rumor. Tremor alludes to being locked in Goro's Lair for an extremely long time by Kano after failing to stop Jax in Special Forces.
In March 2015, it was announced that Tremor would be one of the four characters available as DLC for Mortal Kombat X.
In Special Forces, Tremor is able to create earthquakes by plunging his fist into the earth, which is similar in style to Jax's Ground Pound. He can also shoot a multi-directional fireball.
In Mortal Kombat for PlayStation Vita, he continues to have his earthquake ability (Earth Pound) as well as Fire Blast projectile. Tremor has also learned a new projectile known as Earth Blast, which dazes his foes for a few moments. The brown ninja also utilizes an air grab backbreaker similar to his rival, Jax.