To play as the tiger, beat the game with 17 different characters, including Eddy Gordo. Once this is done, highlight Eddy Gordo on the character selection screen and press START.
Play as Gon
If your tired of beating the game with every one just pick any character and play either time attack or survival mode and get a high enough score that it asks for your innitials then write GON as your 3-letter name.
Play as Doctor B
To get DOCTOR B, complete TEKKEN FORCE mode four times. Each time you finish one set you'll get a key. Collect three keys, then defeat Doctor B and he's yours!
Make MokuJin Sound Like a Wooden Block
On MokuJin's Pic, hold DOWN until the match begins.
GON and Dr. B Made Easy
If you can't beat ball mode or force mode or just don't have the time, her is an easy way to get them. Set the game on easy and one round and infinite time. Play the arcade mode and or the forth, fifth, sixth, and seventh round let the enemy take all but 5 percent of your health then kill him. If you did it right you will here the anouncer say "great" on the next round you will fight Gon or Dr. B. Kill them by using sweeps or anything else and they are yours.
Easy Win with Yoshimitsu
For a easy win with Yoshimitsu, perform his SHARK ATTACK blow at the beginning of each round. This should take away all of your opponent's power early in one shot.
Combo Recording
Go to practice mode and choose Freestyle. At the freestyle options screen, press L1, L2, R1, R2 and CIRCLE then press DOWN and SELECT to record a combo or to replay one.
Alternate Winning Poses
To watch your character's secret winning pose, hold down LEFT KICK or RIGHT KICK during the replay of your win. To see their original poses, hold down LEFT PUNCH or RIGHT PUNCH during the replay of your win. Make sure you hold the button down during all of the replay. NOTE: Not all characters have multiple or secret poses.
View Gun Jack's Good Ending
Finish the game twice as Gun Jack in Acrade Mode.
Alternate Costumes
To change most character's outfits, press either the punch or kick button while choosing a fighter. Some of the fighters also have a third costume, you'll need to press START while choosing your fighter to get get the third outfit.
Jin and Xiaoyu's Schoolgirl Outfits
Play as Jin or Xiaoyu 50 times then press START on them to get school outfits.
Jack's Tank Top
To get Jack's tank top outfit, play as him 10 times, then select him with the START button.
Anna's Alternate Outfit
Play as Anna 25 times in Aracade or Vs. mode. At the Fighter Select Screen hightlight Anna and press Start.
Tekken Ball
Beat the Arcade Mode with all the original characters and the 10 earnable characters.
It is basically a strange version of volleyball without a net.
Theatre mode
Unlock each character, including Panda, Tiger, Doctor Boskonovitch, and Gon, and view their endings. The "Disc" and "Sound" options under "Theatre Mode" will now be available.
Secret Characters
To get the below secret characters you must beat the Aracde Mode with each of the original characters. One bonus character is revealed each time you beat Arcade Mode with a different standard character. The order you get the secret fighters is as follows:
1. Kuma
2. Julia Chang
3. Gun Jack
4. Mokujin
5. Anna Williams
6. Bryan Fury
7. Heihachi
8. Ogre
9. The Real Ogre
Hwoarangs 5 suits
At start menu PRESS R2 R2 R2 R2 R1 R1 R2 L1 L1 L2.
Activates hwoarangs 5 suits.
High School Stage
Enable Jin or Xiaoyu's 3rd costume and when you fight against them in their new costume the stage will show up.
Purple Kazuya
Enable all characters including secret characters, then highlight Kazuya and press start.
Unlock Kazuya
You must have a copy of Tekken 2 before doing this. Finish Arcade mode with Jin Kazama 1000 times you should hear a noise after doing this. When you go back to character select go to the very left so the the cusor is off screen, the box will read Kazuya. If you want to use him push x, press EJECT on your Sony console and remove the Tekken 3 disc, and replace it with the Tekken 2. It will load Kazuya`s data. Now eject it and put back in Tekken 3. You can now use Kazuya. I think you can get other character`s by doing this again, maybe Devil and Jun will make an appearence...