Unlock Devil to access Gallery mode.
Tekken Bowl mode
Unlock Ogre to access Tekken Bowl mode.
Successfully complete the game once to unlock Theater mode.
Play as Doctor Boskonovitch
Get the top score in Tekken Bowl mode. -From: firstname.lastname@example.org
Successfully complete arcade mode with any character to unlock one of the hidden characters. Another character will be unlocked each time the game is completed, in the following order: Kunimitsu, Bruce Irvin, Jack-2, Lee Chaolan, Wang Jinrey, Roger & Alex, Kuma & Panda, Kazuya Mishima, Ogre, True Ogre, Prototype Jack, Mokujin & Tetsujin, Devil & Angel, and Unknown.