Remove ALL Memory Cards from the Playstation and then using controller 2 hold and keep pressed down the L1 + L2 + R1 + R2 buttons and when the screen flashes and just before the Hot Shots logo appears and goes in motion press Up, Up, Down, Up, Left, Right, Right, Left, Up, Up, Down, Up, Left, Right, Right, Left. If you have entered the code correctly you will hear the sound of a Wood driver as confirmation.
All Golfers and Courses: Remove all memory cards, then hold L1, L2, R1, R2 and press Upx2, Down, Up, Left, Rightx2, Left, Upx2, Down, Up, Left, Rightx2, Left on the second controller at the title screen (while the hot shots logo is moving). You will now have all golfers and the courses. Have Fun!!