All Golfers and Courses
Remove all memory cards from the PlayStation. Hold L1 + L2 + R1 + R2 and press Up, Up, Down, Up, Left, Right, Right, Left, Up, Up, Down, Up, Left, Right, Right, Left on controller two at the title screen while the Hot Shots logo is in motion.

Left or Right-Handed Golfer
When choosing a golfer, press R1+R2+L1+L2+Select+Start+X. This will change the golfer to opposite hand.

Mirror Courses
Highlight a course at the course selection screen, then hold L1 + L2 and press X.

Sound Test
While playing with 2 or more players press the four "Shape" buttons onthe other controller and you will hear the game's sound, one for each button