Mokujin Monster is a monster consisting of more than a thousand ordinary Mokujins, controlled by Heihachi Mishima who is inside it.
Story
Tekken: Blood Vengeance
After the battle between Devil Jin and Devil Kazuya, Heihachi unleashes the ancient spirits of the Mokujins, first in the form of a giant hand, and later in full body. Mokujin Monster, however, is defeated by a final burst of attacks by Alisa Bosconovitch. Jin Kazama then leaves, telling Ling Xiaoyu that he awaits a future challenge.