The arcade version of Pokken Tournament apparently introduced a dark Mewtwo via a surprise update. Dark Mewtwo seems to be a special boss in the game, complete with a new menacing look and a different set of moves. You can see gameplay footage of the Pokemon in action in the video below. Pokken Tournament is currently playable at select arcades and is scheduled to arrive on Wii U in Spring 2016. What do you think of Dark Mewtwo ?