Unlock single set of wrestlers:
Press R2, L2, R1, L1, L1, R1, L2, R2, Select at the options screen. Then, highlight a wrestler at the character selection screen and press L1, R1, L2, R2, L1, R1, L2, R2, Select. All three hidden wrestlers related to that wrestler will be unlocked.

Unlock all wrestlers:
Press R1(4), L1(4), R2(4), L2(4), Select at the character selection screen. A sound will confirm correct code entry. All forty-eight bonus wrestlers will be available for selection.

Ring select:
Press R1, R2, R1, R2, Select at the options screen. A sound will confirm correct code entry. Press Select to display the next ring in the series.

More rings:
Press L1, L2, R1, R2, L1, L2, R1, R2, Select at the options screen. The Graveyard, Spaceship, Circus, Hive, Turbo, Wunderland, Boudoir, Hall of Mirrors, Reck Room, Psychodelic, Disco, Jungle, 1984, Quark, and Texas rings will now be selectable.

Hidden rants:
Highlight any wrestler at the character selection screen. Press Circle to hear his comments.

YMCA dance:
Select the Disco ring, and press L2. This also may be used to help win a match. Throw your opponent out of the ring and press L2 when he stands until time runs out.

Swelling heads:
Press L1(7), L2, Select at the options screen. A sound will confirm correct code entry. The heads of each wrestler will swell with each hit.

Big head mode:
Press R1(7), R2, Select at the options screen. A sound will confirm correct code entry.

Big heads, hands, feet:
Press R2(7), R1, Select at the options screen. A sound will confirm correct code entry.

Big hands:
Press L2(7), L1(17) at the mode selection screen.

View FMV sequences:
Press R2(4), R1, R2, R1, R2, Select at the options screen. A sound will confirm correct code entry. Then press X to advance to the next FMV sequence.

Faster frame rate:
Press L2(4), L1, L2, L1, L2, Select at the title screen. A sound will confirm correct code entry. The crowd and other objects will be omitted during game play, allowing the game to run at a faster frame rate.

Special ending:
Complete the game with one of the programmers for a special ending followed by FMV sequences for all the characters.

Interference:
Press Select during a match. Another wrestler will appear and interfere with the match.

Hint: Mid-air fighting:
Select a character that has a special move that may be executed when the opponent is running, such as Hollywood's Big Boot. Begin a match and slam your opponent so he does not get up. Climb on the turnbuckle, and wait for your opponent to get up. When your opponent runs, execute your character's special move once. If done correctly, your character should be floating in mid-air. Move towards your opponent and try to force him on the turnbuckle. Move next to him and he should slam your character in mid-air. Note: The game will freeze if your character leaves the ring. An alternate version of this trick results in a "Quicksand" appearance. Repeat the trick until your opponent is on the turnbuckle. Wait for him to jump off, then press Punch or Kick to jump. If your opponent successfully hits, your character will appear to have sunken into the ring.