These new Tekken Tag Tournament 2 show the game's Fight Lab mode, where you build up a custom robot fighter name Combot. There's a story to this mode. It all begins when Violet, as part of his Super Combot DX Plan, completes work on a robot with incredible ability. He's so excited at the result that he fails to pay attention to the robot temporarily, and it explodes.
Violet decides to rebuild the robot from scratch. That's where you, and the Fight Lab mode, come in.
Joining the Fight Lab mode, Namco Bandai shared a few pics from arcade mode. Arcade mode puts you up against nine fighters, followed by a boss fight. Each character has an ending, totaling over 80 minutes.