Mirror Courses
     At  the Course Selection screen, highlight a course, then hold L1
+ L2 and press X.

Sound Test
     While  playing  with 2 or more players, press Triangle + Square +
Circle + X on the other controller.

Switch Hitting
     When choosing a golfer, press L1 + R1 + X while choosing a golfer.

Change Clothes Color of a Girl you see During Main Menu
     At  the  Title  screen  and  while  the  Title is bouncing, press
Triangle + Square + X.

Access All Character and Courses
     At the Title screen and while the Title is bouncing, hold L1 + L2
+  R1  + R2 and press Up, Up, Down, Up, Left, Right, Right, Left, Left
using Controller Two. If done correctly, you will hear a sound.