Enter the vs. mode option screen and disable the "Quick Selector" selection. This will allow you to preview the fighters in 3D at the character selection screen and see their costumes.
Control Camera During Victory Pose
While your character is doing their victory pose, press and hold the B button and use either control pad to rotate the camera around them.
Control victory pose view
When your character is doing their victory pose, hold X and press the D-pad or Analog-stick to move the camera. Hold B to zoom in at your character, then press the D-pad or Analog-stick to move the camera.
Fight in the nighttime Aerial Garden
Enable level select for versus mode. Then at the level selection screen, highlight Aerial Garden and press Y or R.
Full pause screen
Pause the game and press X + Y.
Hidden artwork
Place the game disc in a PC compatible CD-ROM drive to find several images of the girls from the game in bikinis in the "Bonus" directory.
Hidden Ayane FMV sequence
Select Ayane and play through story mode until you fight Kasumi in the White Storm level. Knock her off the ledge into the ice cave. When you are in the cave, finish the fight. When you KO her you have to knock her at least ten feet away. The FMV sequence shows you shooting a blue smoke object at her instead of the normal sequence of you saying, "You Runaway Shiobi." Note: Some practice may be required to get the correct ending to the fight.
Kasumi Goes Naked
Change the age, in the other section in options, too 99. Then fight in survival mode until you get in the top ten.
Use Kasumi in the survival mode and type REALDEMO for your name. Hit End. Don''t touch anything and wait for the title to start.After staying for 5 minutes in the demo, Kasumi will be naked surrounded in yellow goo.
Kasumi's extra costume
Choose story mode and select Kasumi's third (pink) costume. Play through the game until you fight against yourself. The normally pink costume that CPU player appears in will now be black. Note: You can not play in the black costume, as it is only available for the CPU Kasumi.
More Bounce
To get more bounce follow these steps:
Go to the Options Menu
Select Game Options
Select Others
Increase the age