Other characters
In versus or practice mode select warrior hold select button and press X. you'll see a different type with the same moves.
send by:Mark in the dark

Fatalities and blood options :
Enter Triangle, Circle, X, X, Square, Triangle, Circle, Square as a password.

all characters
at the main menu press right(4) left(4) square circle square circle
send by:corey

Extra options:
Enter Triangle, Circle, X, X, Square, Triangle, Circle, Square as a password to unlock the hidden blood and fatalities options.

All characters:
Press Right(4), Left(4), Square, Circle, Square, Circle at the main menu to unlock all the bonus characters except for the Bodyguard and the alternate character outfits. Repeat this code a second time to unlock all the thirty-one characters.

Unlock Hystrix:
Complete all the chambers with all the characters in story mode. Select versus mode and highlight Method Man at the character selection screen. Then, hold Select and press X to select him.

Unlock Gasche:
Complete all the chambers with all the characters in story mode. Select versus mode and highlight Masta Killa at the character selection screen. Then, hold Select and press X.

Unlock Xin:
Complete all the chambers with all the characters in story mode. Select versus mode and highlight Inspecta Deck at the character selection screen. Then, hold Select and press X.

Unlock Lecher:
Complete all the chambers with all the characters in story mode. Select versus mode and highlight Ol' Dirty Bastard at the character selection screen. Then, hold Select and press X.

Unlock Fearmentor:
Complete all the chambers with all the characters in story mode. Select versus mode and highlight RZA at the character selection screen. Then hold Select and press X.

Unlock Sinesis:
Complete all the chambers with all the characters in story mode. Select versus mode and highlight U-God at the character selection screen. Then hold Select and press X.

Unlock Cerith:
Complete all the chambers with all the characters in story mode. Select versus mode and highlight GZA at the character selection screen. Then hold Select and press X.