Mokujin

Mokujin is a character in the Tekken fighting game series. Mokujin has appeared in Tekken 3, Tekken Tag Tournament, Tekken 5, Tekken 5: Dark Resurrection, Tekken 6 and Tekken 6: Bloodline Rebellion.
Mokujin has no fighting style of his own. Instead, he chooses the fighting style of another character that is competing in the current tournament and uses it. Mokujin changes fighting styles after every round, although it will occasionally use the same fighting style two rounds in a row. In addition to this, Mokujin will mimic the pre-fight and win animations of whomever it is mimicking, but it will not make any sounds during them, because of its inability to speak.