Here is the full list of all 38 Ride to Hell: Retribution achievements worth 1,000 gamerscore.
Complete all other achievements.
Unlock all Bike Artwork.
Complete the game on the One Percenter difficulty setting.
Collect all the cards in the red deck.
Unlock all Bike Paints.
Collect all the cards in the blue deck.
Unlock all Bike Parts.
Complete the game on the Easy Rider difficulty setting.
Defeat Caesar.
Complete the game on the Badass Biker difficulty setting.
Defeat Pretty Boy.
Perform 10 Rage Attacks on bike.
Defeat Triple 6.
Perform an S Grade Jump.
Defeat 500 Devil's Hand enemies.
Purchase 5 Weapons.
Defeat King Dick.
Save every girl being harassed.
Perform a kill with every type of melee weapon.
Defeat Greasy Steve.
Purchase all the Manuals.
Defeat Colt.
Kill 50 enemies with Headshots.
Jump a total of 1000 feet.
Defeat Meathook.
Sell one of every drug type.
Defeat Anvil.
Perform a Rage Attack on foot.
Get 3 A Grades at the gun range.
Save a girl.
Perform a Dirty Fighting Technique attack.
Perform 10 S Grade Wheelies.
Perform an S Grade Wheelie.
Perform 10 S Grade Powerslides.
Perform an S Grade Powerslide.
Complete the opening sequence.
Collect a Playing Card.
Defeat 10 Devil's Hand enemies.