Guitar Freaks 8th Mix Cheats

Hidden options:
Hold Start while selecting a game mode or song. Release Start after the menu appears.

Or insert your coin(s) then hold Red + Blue + Start.

Faster flow:
Press Green(3) at the song selection screen.

Change flow speed during song:
Hold Start and press Blue during game play to increase the flow speed. Hold Start and press Red while playing the game to decrease flow speed. Repeat the code to increase its effect.

Basic, Advanced, and Extreme modes:
Hold Green and press Pick(2) at the song selection screen. Repeat this code to cycle through the modes.

Normal, Bass, and Open Pick modes:
Hold Pick and press Green(2), release Pick then press Pick again at the song selection screen. Repeat this code to cycle through the modes.

Disable codes:
Repeatedly press Pick at the song selection screen until the effects are disabled.

Extra/Encore stage:
Get a "S" or better rank in every song on a bonus or standard track.