(last update - Oct 06 2007)
Total current cheats: 2
print meAnother Way to Unlock the Sound Test
If you want the Sound Test option the easy way, on the title screen, press A, A, Left, B, B, Left, C, C. You will hear a sound when the code is entered correctly. Restart your game and check the Options Menu. It should be there.
print meUnlock: Sound Test
Complete the game on any difficulty level. Once you do so, the Sound Test will appear in the Options Menu.