Barnyard
While playing the game, hold R1 + R2 and press Triangle, Square, X, Circle(2), X, Square, Triangle to unlock all Antics.
While playing the game, hold R1 + R2 and press X(2), Triangle, Cirlce, Square(3), Circle, Triangle to unlock all Knapsack and Flower Pack items.
While playing the game, hold R1 + R2 and press Triangle, Circle, X, Square(2), X, Circle, Triangle to unlock all bonus items.
While playing the game, hold R1 + R2 and press X(2), Square(4), Triangle, Square.
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. 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.