When starting a new game enter Golf_Gone_Wild (case-sensitive) as a name. You'll get all characters, clubs, and stages.

During gameplay: Hold R and enter White, Back, White, Black, Back. You'll hear a sound. As long as you're using the right club for the shot...the shot will be nearly perfect.

At the character select screen: Hold L and enter Y(2), White, Y, Black, Y. A sound will be heard.

During gameplay: Hold R and press Up(3), Down. A sound will confirm. Do this as many times as you want.

During gameplay: Hold R and press Down(3), Up. A sound will confirm. Do this as many times as you want.

During gameplay: Hold R and press Up, Left, Down, Right, Up, Left, Down, Right, X(2). A sound will confirm.

During gameplay: Hold R and press Black, X, Black(2), X. A sound will confirm. Only use this if you don't have any tokens.