Rock Band 3
Guild X-79 guitar:
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At the main menu, press Blue, Orange(2), Blue, Orange(2), Blue(2) to
unlock the Guild X-79 guitar under the "Customization" option.
Ovation D-2010 guitar:
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At the main menu, press Orange, Blue, Orange(2), Blue(2), Orange, Blue
to unlock the Ovation D-2010 guitar under the "Customization" option.
Stop! guitar:
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At the main menu, press Orange(2), Blue(2), Orange, Blue(2), Orange to
unlock the Stop! guitar under the "Customization" option.
Play keys on guitar:
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Achieve the "Guitar Immortal" goal by getting five stars on 50 medium
difficulty /Rock Band 3/ songs or three stars on a higher difficulty.