Guitar Hero II
50 Achievements
1,000
50-60h
Xbox 360
Rock Star
Unlocked Harmonix Arena
10
How to unlock the Rock Star achievement in Guitar Hero II - Definitive Guide
Harmonix Arena is the seventh venue in career mode. You will unlock it and this achievement after completing the encore song in the sixth venue (Vans Warped Tour).
Unlocked after finishing the sixth tier of songs in Career Mode.