Unlock all Characters
At the main menu press Square, Triangle, Circle.
Theatre Mode (Japanese Version)
After unlocking all twenty three characters, which includes the hidden
characters, save the game. Then, unplug controller two, if one is present. Put
the memory card with the Tekken 2 saved game file in the slot one. Now when the
text "Namco Presents" appears, hold Up/Right + Select + Circle + X. If you
entered the code correctly, a screen titled "Theatre Tekken 2" with a list of
game graphic files will appear.
Wire Frame Mode
When selecting your character, hold L1 + L2. Hold these buttons until the fight
begins. Now your character will appear as a green wire frame and the perspective
will be from behind your character (looking through them).