Full list of all 50 Rock Band 2 achievements worth 1,000 gamerscore. It takes around 60-80 hours to unlock all of the achievements on Xbox 360.
Finished the Endless Setlist 2 in World Tour on Expert
Finished the Endless Setlist 2 in World Tour on Hard
Finished the Endless Setlist 2 in World Tour on Medium
Completed all beats at 100 BPM or higher or half of the beats at 180 BPM or higher
Beat the Impossible Bass Challenge
Beat the Impossible Vocal Challenge
Maintained deployed Overdrive for 90 seconds
Beat the Impossible Band Challenge
Completed all beats at 60 BPM or higher or half of the beats at 140 BPM or higher
Completed all fills at 100 BPM or higher or half of the fills at 180 BPM or higher
Completed all fills at 60 BPM or higher or half of the fills at 140 BPM or higher
Beat the Impossible Drum Challenge
Complete 25 Challenges on Expert Difficulty
Completed 25 Challenges on Hard Difficulty or 10 Challenges on Expert Difficulty
Beat an "Impossible" Challenge with all players on Expert Difficulty
Beat the Impossible Guitar Challenge
Unlocked an Impossible Challenge
Completed either 25 challenges on Medium, 10 challenges on Hard, or 5 challenges on Expert
Joined the Rolling Stone Rock Immortals list
Played in every venue in the world
Beat an instrument-specific challenge while playing another instrument
Was a savior three times during a single song
Gained access to every venue in the world
Played a set in Eastern Europe
Achieved an 8x Band Multiplier
Played a set in the United Kingdom
Bought over $100,000 worth of items from the Rock Shop
Played a set in Western Europe.
Played a set in Middle America
Deployed Vocal Overdrive 4 times in a single song
Earned more than 1,000,000 points in a single song.
Won a Jet in World Tour
Played a set on the West Coast of North America
Competed in a Battle of the Bands event
Scored 100% notes hit as a drummer on Expert
Reached 1 million fans in World Tour
Defeated the last player that defeated you over Xbox LIVE in either Score Duel or Tug of War.
Defeated a player in either Score Duel or Tug of War.
Scored 100% notes hit as bassist, up-strums only, on Expert
Scored a 100% rating as a vocalist on Expert
Won a Bus in World Tour
Made a music video in World Tour
Hired a staff member
Won a Van in World Tour
Made a band logo
Scored 100% notes hit as a guitarist on Expert
Gold Starred a song
Played a set on the East Coast of North America
100% a guitar solo on Expert, using only the solo buttons
Complete the Endless Setlist 2 without pausing or failing.