ArtificialSource

Pimp My Sidearm Fully mod a weapon.

Borderland Defender You have defeated all bosses and are a powerful force to be reckoned with

Terminal Hog Take down an Extraction Facility while on a motorcycle

Saved All Saved every character that could be saved.

Soul Drain Find 100% of all Soul Clusters

Strange Bedfellows In the Main Campaign, killed 20 enemies using allies brought in through a Tear.

Parkeologist You opened all of the garages in South Park.

Wrath Machine Collect all the Wrath Powers

Frugalist Complete the game without using a recovery item.

Ladies' Man Find all of the Playboy magazines.

The Spell Master Learn all spells
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Mirror Match A confused enemy defeats an enemy of the same type

The Hallowed Hero Wield a Deathly Hallow

Tranquility Complete a Standing Stone puzzle

Epic Flight Quest Fly from the roof of Snowball's Chance to Sinterpol HQ's roof, without landing

Elected official Complete Acis

The Root of the Problem Stun 10 different enemies using a Mandrake
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Face My Might! Equip 8 abilities

Low Calorie Sushi Complete all the jobs and beat the boss in Episode 1.

Underwater Archeologist Collect 5 underwater Artifacts

Fish Gotta Eat You helped Vito capture Michael Grecco

Robot Hunter Defeated 100 robots

The Burning Question Obtain a key by completing the fifth Riddler trial.

Complete Vermin Extermination Destroy all Mr. Raccoons.

That's a Spicy Meat-a-ball Kill an enemy by attaching a Remote Bomb to them and detonating it.

1st Place at the Science Fair Create all items that contain Chem Fluid and Strong Chem Fluid.

Mile High Club Sky dive to safety on Veteran difficulty.

Make it Rain! You've spent $500.

Broken Toys Destroy it all

The Past Made Present Release the Jedi from the bacta tank

The Primal Riddle Obtain a key by completing the sixth Riddler trial.

Sloth Love Chunk Get 250 kills with the Essence of Sloth

Fell from Heaven Purchase 113 Supernatural Power Upgrades

Scar of the Bat Cure the doctor.

Animal Cruelty You've farted on animals 25 times.

Double Trouble Play Saints Row: Gat out of Hell Co-op for 3 hours

Savior Save 5 people besieged by zombies.

Coup de Grâce Slay 25 zombies using finishing moves.
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Days of Fire Extinguish the fires in Gotham City.

Digit Chase Prize Complete Digit Chase in 1 minute or under.

Supernatural Born Killers Defeat 5 Descendants With a Sniper Rifle

Cooking Expert Reached maximum cooking level.

In the Moment Kill 10 enemies while Focus is active

Fly, You Fools Fly for 250,000 meters

The Cat Came Back Complete "The Maria" mission

Chasing Jill Read a letter left behind by Jill.

Flawless Freeflow Fighter Complete one combat challenge without taking damage

Tortoise Toppler Defeated the adamantoise.

Ashes to Ashes Complete the contract on Therazane.

Savage Metal Smash 10 militia transport vehicles off the road without using the immobilizer.