Guitar Freaks And DrumMania: Masterpiece Gold

Guitar Freaks: Best Record view:
Hold Red + Green + Blue and press Select at the music selection screen.

Guitar Freaks: Extreme difficulty:
Hold Green and then press Pick(2) at the music selection screen.

Guitar Freaks: Bass and Open Pick guitar mode:
Press Pick, Green(2), Pick at the music selection screen.

Guitar Freaks: Faster note scroll speed:
Press Green(2) at the music selection screen.

Guitar Freaks: Play Style menu:
Hold Start after selecting a song at the music selection screen.

Guitar Freaks: Sorts the music list:
Hold Green and press Select at the music selection screen.
lwrt, r wdcw bot, t, p wv, c.

Guitar Freaks: Disable all Play Style codes:
Press Pick(4) at the music selection screen.