Password screen:
Press Circle at the course selection screen.

All courses:
Enter POQAKI as a password.

Badlands course:
Enter HARESO as a password.

Canyons course:
Enter NAMOPI as a password.

Sawgrass course:
Enter SECARE as a password.

Summerlin course:
Enter PORASO as a password.

Forged irons:
Shoot an eagle on any hole to unlock forged irons.

To unlock the entire set of forged clubs, get a hole in one on any hole.

Birdie bonuses:
Three consecutive birdies unlocks the following three bonuses (in order): Forged Irons, Titanium
Driver, and the Rubber Face insert putter. Between each one of these, a set of three consecutive
birdies goes to a special ball (power ball, eye ball, mystery ball, etc.).