Pause the game at any time during a match. Next, press Select. The Pause menu should disappear, leaving the Pause screen unobstructed.
Dr. Cutter
Beat story mode with Anesthesia.
Gallery Mode
Win the title as any character.
Interview the girls
Select a girl to be viewed in the gallery. Once inside the gallery do not make any selections or press any buttons for atleast a full minute. The screen will change and an interview will take place. This works for every girl in any gallery environment.
Judgment
Beat story mode with Bloody Shadow.
Killer Khan
Beat story mode with Aigle.
Mistress Spencer
Beat story mode with Miss Spencer.
Noble Rose
Beat story mode with Evil Rose.
Rowdy Reiko
Beat story mode with Reiko Hinomoto.
Sgt. Clemets
Beat story mode with Dixie Clemets.
Showbiz
Beat story mode with Aisha.
Swap the girls movie entrances
Select 'Exhibition Mode', then pick either 'Normal Match' or 'Title Match'. Select either '1 player', '2 player', or 'computer'. Select the characters you want to swap intro's with. Select the ring you want to hold the match in, then hold down L1 + L2 +R1 + R2 and select 'Play'.
The BBD
Beat story mode with Makoto Aihara.
Unlock Swimsuit #1
At main menu, press Down, Left, Down, Left, Down, Left, Down, Square and Select.
Unlocking Lady X and Lady X Substance
Finish every character, including their alter-egos, to unlock Lady X and Lady X Substance. This character can only be played in Exhibition Mode.
Character - Code
Lady X - Finish Story Mode for all Default Characters
Lady X Substance - Finish Story Mode for all Alter-Ego Characters