Tekken

Two ship Galaga:
Hold Triangle + X + Up + L1 on controller two for a second ship during the load game. Press Select to restart a stage. Restarting the last stage will return the game to stage one.

Extended Galaga:
Hit at least forty alien ships during the first wave of Galaga. Then, press Select when the phrase "Number Of Hits" appears. The next wave of Galaga will be played instead of continuing to Tekken.

Fight as Devil Kayzua:
Beat all eight stages of Galaga to pick the Devil Kazuya in one player mode. Stages may only be restarted with Select once. The final round may not be restarted. The two ship Galaga code cannot be used. However, the second ship may be obtained by finishing stage one very quickly. After Tekken begins, highlight Kazuya in arcade mode and select him with Start.

Fight as Kunimitsu:
Successfully complete the game as Michelle under any difficulty setting. You may use continues.
Information in this section was contributed by sagebrush.

Fight as a Sub-boss:
Beat all characters in the normal game. Fight and beat a sub-boss. The sub-boss may now be selected for game play.

Fight as Bosses:
Defeat the mid-level boss and Heihachi (continues may be used). Characters may not be changed between fights. The bosses will be accessible to the left of Yoshimitsu or the right of Michelle.

Fight as Heihachi:
Use any character to defeat him and all characters before him without using continues. The opponents for Heihachi are all the mid level bosses, and his Boss, Devil Kazuya.

When you defeat Hiehahci, select any mid level boss that is unlocked and fight through the game. Defeat Hiehachi to unlock him at the character selection screen.
Information in this section was contributed by Mega135816.

Alternate costumes:
Press Square + Triangle costume one, or X + Circle for costume two at the character selection screen.

Basic costumes:
Go to a character's screen and press X or Circle for the "outfit of their choosing". Press Square or Triangle for their "best training outfit".
Information in this section was contributed by TwisterBallaT.

Fight views:
When "Select View" appears, press Select to change among three distinct views.

Names in arcade mode:
Hold L1 + R1 while selecting the "Arcade" option from the title screen to view names instead of character portraits.

Hit harder:
Press Triangle + Square + Circle to hit harder.
Information in this section was contributed by BoeJangles1.

View endings and hear music:
Use a memory card with a saved game from Tekken 3 with Theater and Disc + Music modes unlocked.
Information in this section was contributed by John Lawson.

Soundtrack:
Place the game disc in an audio CD player, then play track two and above.
Information in this section was contributed by wilpeter lao.

Demo select:
Enter one of the following codes on either or both controllers during demonstration mode to place the corresponding character(s) in the fight.

Character	Code
Kazuya	Up
Paul	Up/Right
Law	Right
Jack	Down/Right
Nina	Down
King	Down/Left
Yoshimitsu	Left
Michelle	Up/Left
Heihaci	L1 + L2 + R1 + R2
Lee	L1 + L2 + R1 + R2 + Up
Kuma	L1 + L2 + R1 + R2 + Up/Right
Wang	L1 + L2 + R1 + R2 + Right
P. Jack	L1 + L2 + R1 + R2 + Down/Right
Anna	L1 + L2 + R1 + R2 + Down
Armor King	L1 + L2 + R1 + R2 + Down/Left
Ganryu	L1 + L2 + R1 + R2 + Left
Kunimitsu	L1 + L2 + R1 + R2 + Up/Left

Left Throw: Press Square + X.
Right Throw: Press Triangle + Circle.

Hint: Using Kunimitsu's Dagger/Sling Blade:
To be able to actually use Kunimitsu's weapon, you can either press X or Circle while selecting him. Then, press Triangle + Circle during a match to grab your opponent and hit them in the face with your dagger. Or, you can press Triangle or Square when selecting him. Then every hitting move will result in him jabbing them with his second costume's weapon, the sling blade.
Information in this section was contributed by Anonymous.

Hint: Mystery character:
On the back of the jewel case for the game is a screenshot of a character not found in the game, Dragon, fighting Jack. Dragon is actually a nickname for Law, but is not found anywhere in the game.
Information in this section was contributed by Anonymous.