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Sharp Shooter Perform 50 headshot kills in the single player campaign.

Relic Hunter Collect 25% of all relics.

Scrounger Collect 5000 pieces of salvage.

Clever Girl Purchase all skills in one category.

Tastes Like Chicken! Kill and loot 10 small animals (rabbits, chickens, rats).

Looking for Trouble Find 25% of GPS caches.

Equalizer Kill 75 enemies with the rifle.

Unfinished Business Complete one challenge.

Crab Cakes Kill FeeFee the crab.

Now We're Getting Serious Fully mod and completely upgrade any weapon.

Historian Find 75% of all documents.

Feather Duster Kill and loot 10 flying animals (crows and gulls).

Archaeologist Collect 75% of all relics.

Intellectually Superior Complete all optional tombs.

Arkham Analyst Solve 5% of Riddler challenges

Just What The Doctors Ordered Save all the doctors in Medical

Bag Full O' Cache Find 75% of GPS caches.

Daydreamer Survive the nightmare of the Scarecrow's fear gas

Fergus saved Choose to save Fergus

Cryptic Investigator Solve 10% of Riddler challenges

Baneful Payback Defeat Bane

Lethal Purchase all skills in all categories.

Breaking And Entering Gain access to Arkham Mansion after it is locked down by the Joker

Bullet feeder Unlock assault perk 4

Recurring Nightmare Face your biggest fears and keep your sanity

Zsasz Cut Down To Size Save Dr. Young from being killed by Victor Zsasz

No Stone Left Unturned Find all documents, relics and GPS caches.

Solitary Confinement Capture and lock up Harley Quinn

Freeflow Combo 20 Complete a combo of 20 moves (any play mode)

Fall Guys Kill 10 enemies by shooting them in the leg

Lateral Thinker Solve 25% of Riddler challenges

Silent shot Unlock stealth perk 5

Double Trouble Defeat two Titan Henchmen at once

Twist and Shout Defeat the Lurker Ambush

Hungry? Protect Farthy's Snacks

Resist The Fear Conquer the effects of the Scarecrow's fear gas

Taking the High Road Light the signal fire in the Remnant Valley

Crocodile Tears Venture into Killer Croc's lair and come out alive

Took the Shaman's Path Survived the Shaman's Path and found Ourea's retreat.

The Professional Fully mod and completely upgrade all weapons.

Freakshow Rodeo Ride Titan henchman and knock down 10 thugs (any play mode)

A Helping Hand Defend Remnant home from the Looter Invasion

Assassin Unlock stealth perk 8

Poisoned Ivy Defeat the giant Titan Ivy plant

Big Bang Complete story mode on Easy difficulty

The Key To It All Recover the Atlas

Grenade pouch ++ Unlock demolition perk 3

It's Cold Out Here Stop the 3 Lurker Glacier Troops

It's Dark in Here Survive the Lurker Infested Cave

Gun magazine + Unlock tactical perk 4