During game play hit the y button and then hit a to start.Try to get it in the shaded blue zone.(you can only do this once during a game.)
In tour mode finish driving, putting, etc.
Finish match play or skins mode to unlock them.
Enter the following case-sensitive word as your filename when asked to do so. (uppercase G, lowercase o, etc...)
During gameplay HOLD R and press Up, Up, Up. Repeat for even larger
Start a game with two or more players. While the other person is hitting the ball, press A to say things to distract them.
when your picking the player you want squeeze the left trigger button then while still holding it hit y,y,white,y,black,y and you'll get some differant clothes.
During gameplay HOLD R and press Down, Down, Down. Repeat for even smaller
During gameplay HOLD R and press Up, Left, Down, Right, Up, Left, Down, Right, X, X