WWF War Zone

Codes

Effect	Code
Alternate Costumes	Hold L2 and press X when selecting your character
Dizzy Wrestler	Hold Square when creating a player
Movie Player	At the title screen press Up, Triangle, Right, O, Down, X, Left, Square, Up Triangle, Right, O, Down, X, Left, Square, Up, Triangle, O, Down, Sqaure, Left, Square, L2 + R2, L1 + R1, L2 + R2
Random wrestler	At the character selection mode, hold Up and press X.
View unlocked characters and modes	At the main menu press L1+R1

To call for a certain wrestler to run in during a match, hold all four
top  buttons  (L1+L2+R1+R2)  and  press  a direction + a button.  Each
combination of a direction and a button  corresponds to each of the 16
wrestlers in the game.  Note: it becomes a Handicap match with you and
whoever you  called  in  against  you  opponent, but  no  matter  what
happens, your opponent will win by Disqualification. Also, it can only
be done in a 1-on-1 VS Match.

 Here are the combinations corresponding to the person you call in: 

Button Combination:       Wrestler:
 
 L1+L2+R1+R2+Up+Kick       Steve Austin
 L1+L2+R1+R2+Up+Punch      Faarooq
 L1+L2+R1+R2+Up+TieUp      Mankind
 L1+L2+R1+R2+Up+Block      Ahmed Johnson
 L1+L2+R1+R2+Down+Kick     Ken Shamrock
 L1+L2+R1+R2+Down+Punch    Kane
 L1+L2+R1+R2+Down+TieUp    Thrasher
 L1+L2+R1+R2+Down+Block    Mosh
 L1+L2+R1+R2+Left+Kick     The British Bulldog
 L1+L2+R1+R2+Left+Punch    Shawn Michaels
 L1+L2+R1+R2+Left+TieUp    Bret Hart
 L1+L2+R1+R2+Left+Block    Owen Hart
 L1+L2+R1+R2+Right+Kick    The Rock
 L1+L2+R1+R2+Right+Punch   Goldust
 L1+L2+R1+R2+Right+TieUp   Triple H
 L1+L2+R1+R2+Right+Block   The Undertaker