Spirit-X

Unlockable: Photo Shoot mode
You must get 8,000 cash then go get the camera in the shop.

Unlockable: Sound Test in locker room
You must get 9,000 cash then go get the audio set in the shop.

Unlockable: Rowdy Reiko
Use Reiko Hinomoto, and play with her until she becomes the champion. Then,use Evil Rose and BEAT Reiko. Take the championship title from her. Then win the reward match against Rowdy Reiko.

Unlockable: Swimsuits
When you play as any default character in their swinsuits for several matches, the suits themselves will eventually become available for purchase. They'll go for ,000 for all the other characters.

Unlockable: Maid Costume
From the Locker Room, go to the photo shoot mode with all of the characters. It will unlock and become available in the shop under Edit Costume.

Unlockable: Alter Egos
Win the title any of the characters, then take it from her with another girl. A bonus match will unlock, and beat the girl again.

Hint - Popularity Is Everything:
Increasing your popularity depends on your wrestler type. Good fighters (all on the top row) have blue popularity meters and they increase in popularity as you engage in (and win) normal matches. Bad fighters (all on the bottom row) have red popularity meters and do not experience changes in popularity in normal (pinfall) matches. Bad fighters increase their popularity in the Street Fight mode (next to the Locker Room icon). Try also performing at least one Killer Move, one Lethal Move, and one Humiliation (not possible in Street Fight), for "variety".

Unlock Swimwear:
Swimwear can be unlocked in the shop by winning a few normal matches while your fighter is wearing her swimwear costume (one slot left of the default costume). Unlock the swimwear option by playing (and winning) at least one Queen's Match.

You cannot purchase the swimwear of your fighter (you already have it), but it will be available for the other fighters in their shop.

Hint - Costume Clues:
The shop's locked costumes can be unlocked by fulfilling the various conditions hinted at in the text box. Some conditions include holding onto titles, winning over certain opponents, or simply spending time in other modes.

Hint - Pump Her Up:
Partaking in any match increases your fighter's ability to be customized in body (appearance) and muscle (performance). Increasing muscle stats will increase the damage you do, and reduce the damage taken. Only the normal fighter may be customized; superstars are played as designed. Strikes and throws increase stats. Being subject to submissions reduce them.

Hint - Girl Partner. Huhuhuhuhu:
When selecting a match partner, characters with histories (good or bad) will have something to say on the character select menu when you select the portrait but before you you confirm superstar status and color. Use the pre-match tag screens (exhibition is best) to determine the viability of the coupling. Wrestlers shaking their heads are a bad sign.

If you're in need of real help, select any two characters and enter an exhibition Tag Match (or any regular Tag Match, although these are not always available). On the VS screen, there is an icon corresponding to each pairing. The halo around the icon signifies a good match-up, whereas a lightning bolt signifies a bad match-up ('sparks' between the two). Neutral match-ups have no outstanding symbol.