Looney Tunes: Back In Action Cheat Codes for Gamecube

Duck Danger costume
Enter "DANGERD" as a code to play the entire game with Daffy Duck in his Duck Danger costume.
Submitted by: Zach

Hen grenades
Enter "HENSAWAY" as a code to give your toon a new attack option called "Hen Grenades".

Level select
Enter "PASSPORT" as a code.

Invincibility
Enter "TOUGHAGE" as a code to make Bugs and Daffy invincible. They will still get hit by enemies, but will not lose their lives.
Submitted by: Zach

Free costume doors
Enter "SUITSYOU" as a code.

Show Gossamer Doors in the Warner Bros. Studios.
Enter "GOBBLE" as a code.

Cannon Ball costume
Enter "CANNON" as a code to play the entire game in the Cannon Ball costume.

Hen grenades
Enter "HENSAWAY" as a code to give your toon a new attack option called "Hen Grenades".

Slappy Fish
Enter "SLAPPY" as a code.
Submitted by: Zach

ACME Shrink Ray
Enter "WEENY" as a code.
Submitted by: Zach

Additional $500
Enter "AMUNKEY" as a code.
Submitted by: Zach

Duck Danger Battle
Enter "OUTTAKE" as a code.
Submitted by: Zach

Wile. E. Coyote mini-game
Enter"FURRYOUS" as a code.
Submitted by: Zach