Rock Band

All songs:
Quickly press Red, Yellow, Blue, Red(2), Blue(2), Red, Yellow, Blue at the title screen when "Press Start" appears on the guitar or drum controller. Enabling this code will disable game saves.
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Instruments:
Complete the indicated task to unlock the corresponding instrument.

Gold drum kit: Complete Solo Tour mode on drums under the Medium or higher difficulty.

Gold Fender American Deluxe Stratocaster HSS guitar: Complete Solo Tour mode on guitar under the Medium or higher difficulty.

Gold microphone: Complete Solo Tour mode on vocals under the Medium or higher difficulty.

Silver drum kit: Complete the Bonus Tour on Solo Tour mode on drums.

Silver Fender American Deluxe Stratocaster HSS guitar: Complete the Bonus Tour on Solo Tour mode on guitar.

Silver microphone: Complete the Bonus Tour on Solo Tour mode on vocals.

Transparent drum kit: Have a PR firm and a set of body guards at the end of Band World Tour to get an invitation for the Moscow Hall of Fame concert. Complete the eight set song list for that concert on the drums.

Transparent Fender American Deluxe Stratocaster HSS: Have a PR firm and a set of body guards at the end of Band World Tour to get an invitation for the Moscow Hall of Fame concert. Complete the eight set song list for that concert on the guitar.

Transparent Fender Bass: Have a PR firm and a set of body guards at the end of Band World Tour to get an invitation for the Moscow Hall of Fame concert. Complete the eight set song list for that concert on the bass.

Transparent microphone: Have a PR firm and a set of body guards at the end of Band World Tour to get an invitation for the Moscow Hall of Fame concert. Complete the eight set song list for that concert on vocals.