Play as Panda
At the character selection screen, highlight Kuma and press Circle. Note: Panda has a different story than Kuma.
Successfully complete Story mode to unlock Theater mode.
Command Attack mini-game
Successfully complete Story mode two times to unlock the Command Attack mini-game.
Gold Rush Time Attack
Successfully complete Story mode three times to unlock Gold Rush Time Attack.
Tekken Bowling mini-game
Successfully complete Story mode three times to unlock the Tekken Bowling mini-game.
Stage 0 in Tekken Dojo mode
Successfully complete all six stages in Tekken Dojo mode to unlock Stage 0. In Stage 0, you can fight against all downloaded ghost characters whenever desired.
Successfully complete the Ranking Tournament in Void Dojo to get 3,000,000 G.
Successfully complete Void Dojo after defeating Ranking Tournament and Jinpachi to unlock the Heaven Dojo.
Successfully complete the Void Dojo after defeating Ranking Tournament and Jinpachi to unlock Jinpachi’s Ghost.
Tekken Dojo Gold Rush mode
Successfully complete the Wind Dojo to unlock Tekken Dojo Gold Rush mode.
Tekken 5 opening movie from PlayStation 2 version
Successfully complete Time Attack mode to unlock the opening movie from Tekken 5 for the PlayStation 2.
Tekken: Dark Resurrection opening movie from arcade version
Successfully complete Survival mode to unlock the opening movie from Tekken: Dark Resurrection for the arcade.
Source by David Allison