At the main menu press R1 four times, L1 four times, R2 four times, L2 four times, then press Select.
Alternatively, press R1 + L1, R2 + L2, R2 + L2, Select. A noise will confirm the code.
Big Head, Hands, And Feet
Go to the Options screen and press R2 seven times, then press R1, Select.
Big Heads
At the Mode Select screen press R1 seven times, then press R2, Select.
Bonus Characters
Beat the WCW League to access several bonus characters.
Bonus Rings
At the Options menu, press R1, R2, R1, R2, L1, L2, L1, L2, Select.
Computer Assistance
Press the SELECT button at any time during the match and another wrestler will come out and help you beat up on your opponent.
Easy Win
Choose the disco ring and throw your opponent outside of the ring. When they stand up, press L2 to make them do the YMCA dance. Keep doing this until the timer runs out.
Instant Win
Highlight a wrestler at the character selection screen and press L1, R1, L2, R2, L1, R1, L2, R2, Select.
Ring Select
At the main menu press L1, L2, R1, R2, L1, L2, R1, R2, L1, L2, R1, R2, L1, L2, R1, R2, Select.
Ring Skip
In the Options Menu press R1, R2, R1, R2, Select. From now on, each time you press the Select button the ring will advance by one.
Voodoo Mode
At the Wrestler Select screen press L1 seven times, L2+Select you should hear a Wacky sound. During the match as the wrestler takes damage his head will get bigger and bigger .
YMCA
While playing in the Disco ring, hit L2. It's fun to stay at the YMCA.