Dragon Ball Z: Tenkaichi Tag Team is a PlayStation Portable fighting video game based on Dragon Ball Z.The game features high-impact two vs. two combat. It is the third Dragon Ball Z game for the PlayStation Portable, and the fourth and final Dragon Ball series game to appear on said system.The game was released on September 30, 2010 in Japan, October 19, 2010 in North America, October 22, 2010