Here is the full list of all 45 Saints Row: Gat Out of Hell achievements worth 1,000 gamerscore.
Played Saints Row: Gat out of Hell Co-op for 3 hours
Completed ALL of the Challenges
Conquered all of New Hades with 100% City Take Over
Beat the game
Completed all open world gameplay in two districts of the city of New Hades
Spent over 20 hours in Hell
Stood on the tallest mast of the 'Queen Anne's Revenge'
Found 75 Barnstorming Diversion locations
Flew for 250,000 meters
Killed 25 Demons with each of the Seven Deadly Weapons
Purchased 113 Supernatural Power Upgrades
Chose a new element for all of your Supernatural Powers
Killed 100 Demons using the Coldfire Aura Supernatural Power
Stonified and Shatter Killed 100 Demons with the Stone Blast Supernatural Power
Killed 1000 Demons with any combination of Supernatural Powers
Killed 25 Arch Dukes
Got 250 kills with the Essence of Wrath
Car surfed on a Comet while it explodes
Found 100% of all Soul Clusters
Upgraded one weapon to the max
Found 64 Tomes
Flew from the roof of Snowball's Chance to Sinterpol HQ's roof, without landing
Killed 150 Demons with the Stomp Supernatural Power
Got 250 kills with the Essence of Sloth
Had minions kill 100 Demons with the Summon Supernatural Power
Took down an Extraction Facility while on a motorcycle
Played for at least 2 hours as Gat and 2 hours as Kinzie
Killed 50 of your own summoned Imps
Got a Comet into the Ultor lobby
Shot down a Spire missile with a blast while hovering
Killed an Arch Duke with a melee attack
Flew for 500 meters while on fire
Smacked into the ceiling 10 times while wall running
Got 100 kills with the God's Hammer
Stayed airborne during Supernatural Jumps or Flight for a combined 10 minutes of gameplay
Flew continuously for 60 seconds
Collected at least five Soul Clusters without touching the ground
Knocked a vehicle into the lava
Died in the lava
Stayed in contact with the lava for 10 seconds without dying
Found 100 Soul Clusters
Had five Imps attached to you at one time
Bought your first Upgrade from the Upgrade Store
Got your first Supernatural Powers
In Torment Fraud, hit 5 vehicles in a row without touching the ground