Barnyard Cheats

At the title screen press and hold L and Z and enter the following...

When Ben tells you to use the metal detector to locate the gophers coins, go to the barnyard. On the right side of the farmer's house you will see yellow flowers. Use the metal detector and you will get a group of coins. At night, go in and out of the party. Each time use the metal detector on the side of the farmer's house to get more coins.