completed the game on Medium difficulty.
I've played GH3 with some friends a few times, and I really liked it, so I finally bought it. Not to be a show-off, but I got the game 3 days ago, and even though I attended a 2-day weekend seminar with the rest of Tonic Games this weekend, I still managed to complete Medium Level with a five star ranking on all songs; many songs, including Metallica's 'One', on the first attempt. I didn't know about the Dragonforce-powered horrors of the credits listing, so I was caught totally by surprise! But now on to Hard Mode...
Got the Rock Guru achievement.
- 5 stars on all songs in Medium