15 Impossible Xbox Live Gaming Achievements Nobody Unlocked

9. Bladder Of Steel - Rock Band 2

Another one for the plastic instrument crowd, and original Guitar Hero developer Harmonix easily became the more authentic of the two with Rock Band, as a heavier multi-instrument focus made for real-world guitarists, drummers and vocalists to really get behind how they were trying to teach the masses. However, considering the 80 song-strong on-disc selection, asking you to play all of them in a row with no pauses was one hell of a tough gig. Only the most devoted players would devote the time to even attempt this, and when you factor in playing around 400 minutes (over six hours) of straight guitar work, drumming or singing - it has a gruelling physical endurance attachment that'd be a miracle if anyone completed.