Full list of all 60 Saints Row 2 achievements worth 1,250 gamerscore. It takes around 80-100 hours to unlock all of the achievements in the base game.
The base game contains 50 achievements worth 1,000 Gamerscore, and there are 2 DLC packs containing 10 achievements worth 250 Gamerscore.
Earned 30 Badges in multiplayer
Found all stunt jumps in Stilwater
Found all flying stunt locations in Stilwater
Delivered all the cars to the chop shops
Completed all races in Stilwater
Killed all Hitman targets
Found and sprayed all 50 tags in Stilwater
Found all CDs in Stilwater
Completed all campaign missions in co-op
Exacted revenge on Julius
Defeated the Ultor Corporation epilogue
Completed all Ronin missions in co-op
Completed all Samedi missions in co-op
Completed all Brotherhood missions in co-op
Defeated the Brotherhood
Completed all levels of Tow Truck, Fire Truck, Ambulance, and Taxi diversions
Won all seven Ranked Strong Arm Activities, and won on all seven Strong Arm maps
Won 10 Xbox LIVE Strong Arm matches
Played Saints Row 2 in single player or co-op for a combined 50 hours
Completed all levels of all activities
Completed all levels of all activities in co-op
Completed all levels of Heli Assault
Completed all levels of Mayhem
Gambled $500,000 total lifetime
Mugged 50 citizens of Stilwater
Completed all levels of Drug Trafficking
Completed all levels of Snatch
Completed all levels of Trail Blazing
Completed all levels of Insurance Fraud
Earned 15 Badges in multiplayer
Completed all levels of Escort
Defeated your partner in a co-op diversion
Completed all levels of Fight Club
Completed all levels of FUZZ
Completed all levels of Septic Avenger
Earned 7 Badges in multiplayer
Created and won an Xbox LIVE Party Game
Defeated the Sons of Samedi
Completed the Zombie Uprising video game
Hit 100 lifetime nut shots
Taunted 50 gang members
Defeated the Ronin
Threw someone a long, long way
Completed the Strong Arm tutorial
Completed all levels of Demolition Derby
Completed all levels of Crowd Control
Grabbed 50 human shields
Got 3 gold stars in Vehicle Surfing
Sung along to the radio
Completed the Saints Revival prologue
Hosted or played in a party match on Xbox LIVE
Won the Co-op competitive mission game 5 times
Played the Co-op Mission game once
Called Tera as a homie
Completed the Ultor Exposed mission arc
Win 10 Gangster Brawls or Team Gangster Brawls on Xbox LIVE
Won 20 rounds in the Stuntmen Co-op game
Played the Stuntmen Co-op game once
Your team held all tag spots at one time in a Strong Arm match on Xbox LIVE
Completed the Corporate Warfare mission arc