Farm sounds
At the main menu, press L1(2), R2, Up, Down, Right. If you entered the code correctly, you will hear the sound of a cheer. Repeat this code to disable its effect.

Clown sounds
At the main menu, press L1(2), L2, R2(2), R1. If you entered the code correctly, you will hear the sound of a cheer. Repeat this code to disable its effect.

Fast announcers
At the main menu, press L2, R2, R1, R2, L2, R2. If you entered the code correctly, you will hear the sound of a cheer. Repeat this code to disable its effect.

FMV sequences
At the main menu, press L2, L1(3), L2(2). If you entered the code correctly, you will hear the sound of a cheer.

View credits
At the main menu, press L2, L1(2), L2(3). If you entered the code correctly, you will hear the sound of a cheer.