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Rain Man Complete the BRIDGE level without a kill.

A Mystery, Solved Solve the mystery of Leonora Johnson.

After Market Unlock a mod for a car in Multiplayer

Bloodlust Collect 5000 microsamples of infected blood with the blood collector.

Dang Girl, You Ace At This Game Win the most challenging round in Murderlin's Temple.

Operation Sudden Death Complete Operation Sudden Death.

Master Conductor - Electrocute 3 Helghast Electrocute 3 Helghast with a single burst from the VC5 Electricity Gun

Under The Red Hood Shut down this operation.

Radio Silence Complete the game without using the radio.

Temper Temper Hunt your first tempered monster.

Light the Fires! Earn 10 Relics (gold or better).

Bronze Revenge Obtain 24 medals on the original Arkham City ranked maps (as Batman)

Invisible Savior Complete the FACILITY level without killing or raising alarm.

Adrenaline Rush Manually trigger AR Mode and destroy three enemy robots in a row.

At the Summit of Apocrypha Complete "At the Summit of Apocrypha"

The Hunter's Life for Me Complete 50 optional quests.

Architect Build three wings on a house

Disappearance Complete "A QUIET EXIT" mission.

All in the Family Collected all of the Mysterious Objects.

Handyman Crafted every type of item at least once.

Kitchen Sink Use a Billboard and a Jack Spot to successfully evade a pursuit (Single Player)

That Was Nice of You Save Rebecca from a Hunter.

Romanov This! Destroy a Romanov with a melee attack.

RIG Master Fully upgrade your RIG.

Wall of Shotgun Campaign: 50 kills with shotguns

Practice makes perfect Headshot each of the targets in the gun range in Kaffarov

Saboteur Complete the SNIPER TEAM level.

Through the Fire Complete the SPIDER LAIR level.

Diligent Reader Collected all files.

Bravo, Rebecca Save Chris using Rebecca.

DLC: Mars: Slimy Death Hit 10 Arachnids with Crabmones.

Chain Reaction Damaged fifteen foes with an exploding enemy, using the Radar Range in Burial at Sea - Episode 1.

I AM the Batman! Reclaim your city.

A Ripple in Time Obtain the item that lies beyond the gate in the sewers in Barry's Episode Three.

Sins of the Fathers Complete the War Stories Under No Flag, Nordlys & Tirailleur on Hardcore

End to Major Combat Operations Complete Act 5 without using mission select.

Invisible Intruder Complete the SEPARATION level without killing or raising alarm.

New Challenger Join and complete an Online Tournament match

Everywhere! Take part at least once in the 4 different Challenges

Derailed Kill all armed enemies on the REVOLUTION level, including all reinforcements.

The Sampler Platter Kill a Necromorph with every Weapon in the game (single player only).

Impregnable Defense Obtain five highly rare pieces of armor.

Never Touch the Stuff Complete the main story without using herbs or med injectors.

Everything's Ruined Complete Super Exploding Zoo.

Top Gun Complete all Jackal-only side missions.

Operation Trace Kill Complete Operation Trace Kill.

Vicious Circle Reach the "Maria" ending.

Tools of the Trade Assassinate Targets with Ballistic, Accident and Explosion Kills.

Practice Makes Perfect! Earn 26 Relics (gold or better).

Invisible Soldier Complete the REVOLUTION level without killing and raising an alarm.