Costumes
     Enter this code in the cheat codes option.

Cheat code:             Effect:
KellyKG12R              Kelly Kelly second outfit.
DXCOSTUME69K2           Unlocks HHH and HBK's DX attires.


Unlockable Characters
Go to 24/7 mode and access the WWE shop:

Unlockable:    How to unlock:

Bret Hart                Defeat Bret Hart in the Hall of Fame direct 
                         challenge mode, then you can buy him 
                         in the WWE Shop for $210,000
               
Mick Foley               Defeat Mick Foley in the Hall of Fame direct 
                         challenge mode, then you can buy him 
                         in the WWE shop for $210,000
               
Ravishing Rick Rude      Buy in the WWE Shop for $210,000

Rowdy Roddy Piper        Buy in the WWE Shop for $210,000

Stone Cold Steve Austin  In the Hall of Fame, select Stone Cold.
                         Defeat him in a Submission Match using Bret 
                         Hart, then you can buy him in the WWE ship 
                         for $210,000
                         
Terry Funk               Defeat Tommy Dreamer, Sabu, and Sandman 
                         in an ECW Extreme Rules 4-way mmatch using 
                         a superstar on "Legend" Difficulty. 
                         In WWE shop for $210,000
                         
The Rock                 Defeat The Rock as Stone Cold in "Legend" 
                         Difficulty, then you can buy him 
                         in the WWE shop for $210,000