CheatCodes.com has all the official Looney Tunes: Marvin Strikes Back Game Boy cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Sunday May 19, 2013 for Looney Tunes: Marvin Strikes Back are shown below.
Found some tricks that we don't have? Got some helpful hints, tips, or tactics we don't know about? Tell us and you could win a free Game Boy game (or any other game you want for any video game system)!