Guitar Hero III

Guitar Hero III

59 Achievements

1,000

Xbox 360
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Hard Duo

Hard Duo

Earn 5 stars on all Co-op songs on the Hard difficulty

30

How to unlock the Hard Duo achievement in Guitar Hero III - Definitive Guide

The general formula for the 5-star scores is the song for career score x 2. Use the link provided in "Shredder" for a rough view of what you'll need. Get a friend over, and 5-star everything on Hard.

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