Guitar Freaks Append 2nd Mix Codes -

Little mode:
Press Red(3), Green(2), Blue(3), Pick at the mode selection screen. This mode only allows two chords.

FF mode:
Press Red, Green, Blue, Pick(2) at the mode selection screen. Fast Forward mode increases the speed of the game.

SFF mode:
Press Red, Green, Blue, Pick(2), Red, Green, Blue, Pick(2) at the mode selection screen. Super Fast Forward mode increases the speed of the game even more.

Hidden mode:
Press Red, Blue, Green, Blue, Red, Green at the mode selection screen. Notes will disappear early in this mode.

Screen mode:
Press Red, Blue, Green, Blue, Red, Green, Red, Blue, Green, Blue, Red, Green at the mode selection screen. Notes will appear just before the play line in this mode.

Sudden mode:
Press Green, Red, Blue, Green, Blue, Red, Pick at the mode selection screen. Notes will appear closer to the play line.

Random mode:
Press Blue, Green(2), Red, Green, Pick at the mode selection screen. Some notes will be randomized.

Super Random mode:
Press Blue, Green(2), Red, Green, Pick, Blue, Green(2), Red, Green, Pick at the mode selection screen. Even more notes will be randomized.

Battle mode:
Press Pick, Green(2), Pick at the mode selection screen.

High Speed Edition for Guitar Freaks:
Press Pick(2), Red, Blue, Red, Blue, Green(2) at the mode selection screen. Then, highlight "Expert" and press Start.