Looney Tunes: Back In Action Codes -

 

Level select:
Submit the code PASSPORT .

Invincibility:
Submit the code TOUGHAGE  to make Bugs and Daffy invincible. They will still get hit by enemies, but will not lose their lives.

Free costume doors:
Submit the code SUITSYOU .

Show Gossamer Doors in the Warner Bros. Studios.:
Submit the code GOBBLE .

Cannon Ball costume:
Submit the code CANNON  to play the entire game in the Cannon Ball costume.

Duck Danger costume:
Submit the code DANGERD  to play the entire game as Daffy Duck in his Duck Danger costume.

Hen grenades:
Submit the code HENSAWAY  to give your toon a new attack option called "Hen Grenades".

Slappy Fish:
Submit the code SLAPPY .

ACME Shrink Ray:
Submit the code WEENY .

Additional $500:
Submit the code AMUNKEY .

Duck Danger Battle:
Submit the code OUTTAKE .

Wile. E. Coyote mini-game:
Submit the code FURRYOUS .