Unlock ALL Songs Mode:
Enter the following combination at the 'Title' screen to unlock ALL Songs mode, if the code has been entered correctly the screen will flash as confirmation. Press player two's first White Key 9 times, Middle White Key 9 times and the Last White Key 8 times. Then press 'Effector' and in the 'Options' menu use the turntable to turn the mode on.

Unlock Bonus Modes:
Highlight a song at the 'Selection screen and then press the 'Effector' 8 times holding it on the final time. While it is held press any of the following buttons to unlock the corresponding mode.

Unlock Mirror Mode:
Press Left Blue.

Unlock Random Mode:
Press Left Blue Button 2 times.

Unlock Hidden:
Press Middle White Key.

Unlock Sudden Mode:
Press Middle White Key 2 times.

Unlock Stealth Mode:
Press Middle White Key 3 times.

Unlock High Speed 1:
Press Right Blue Button.

Unlock High Speed 2:
Press Right Blue 2 times.

Unlock High Speed 3:
Press Right Blue 3 times.

Unlock Another Difficulties Song List:
At the 'Selection Screen' when you are select the 'Hard' difficulty setting hold 'Effector' and song list will be rearranged.