CheatCodes.com has all the official Barnyard GameCube 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 Friday May 24, 2013 for Barnyard are shown below. We also have this game on PlayStation 2, PC, Game Boy Advance, GameCube, Wii, and sometimes tricks from other game systems will also work on GameCube.
Go to the title screen and hold L+R and enter Y, X, A, B, B, A, Y, X.
Hold L+R and enter A, A, Y, B, X, X, B, Y.
When Ben tells you to use the metal detector to locate the Gopher's coins, go to the barnyard. On the right side of the farmer's house you will see yellow flowers. Use the metal detector to find a group of coins. Then at night, go in and out of the party. Each time you use the metal detector on the side of the farmer's house you will get more coins.
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 GameCube game (or any other game you want for any video game system)!