Cel Damage

Unlock Everything But Ending Movies and Movement Power-Ups: With a memory card in slot A. Go to Create/Load and select new game. Enter your name as "SUSIE!" and you will have unlocked everything but the ending movies and movement power-ups.

Unlock Everything But Movement Power-Ups: Enter your name as "PITA" and you will have unlocked everything but the movement power-ups.

For the following cheats you must enter the character selection screen, select "Load" and then enter the following codes:

Personal Weapons: Enter "UNIQUEWPNS" as a name
Melee Weapons: Enter "MELEEDEATH" as a name
Ranged weapons: Enter "GUNSMOKE!" as a name
All FMV sequences: Enter "MULTIPLEX!" as a name
Jungle world: Enter "TWRECKSPAD" as a name
Space world: Enter "BRAINSALAD" as a name
Movement power-ups: Enter "MOVEITNOW" as a name

Plastic Graphics: Enter "FANPLASTIC" as a name. Enter the event selection screen and highlight "Smack Attack". Press Down and select the "Event Settings" button. Then, select the "Options" button and select the "Rendering Modes" button. Change this option to "Render: Plastic". The message "Current mode: plastic" will appear. Return to the even selection screen, then proceed to select a level and begin gameplay.

Unlock Everything: Enter "ENCHILADA!" as your name when creating a new profile to unlock everything

Big head mode: While playing a game, hold L + R + Up.

Play as Brian The Brain: Win Smack Attack, Gate Relay, and Flag Relay in all three levels of the Space world to unlock Brian The Brain.

Play as Count Earl: Win Smack Attack, Gate Relay, and Flag Relay in all three levels of the Transylvania world to unlock Count Earl.

Play as T. Wrecks: Win Smack Attack, Gate Relay, and Flag Relay in all three levels of the Jungle world to unlock T. Wrecks.

Play as Whack Angus: Unlock all modes (Smack Attack, Flag Rally, Gate Relay), then win all three levels in the Desert world in each one (total of nine).

Additional FMV sequences: Finish Smack Attack, Gate Relay, and Flag Relay with each character to unlock additional FMV sequences.