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The Power of Three Completely upgrade three weapons.

Oversight Become Overseer

Toast Use the upgraded Deadeye secondary fire to kill 2+ enemies, 5 times

Item Connoisseur Obtain a Rank S Item in Scenario Campaign Mode.

Creature Comforts Obtain White Breath skill, equip Grip of Fear White Knuckle and Scales of Q Feathered Serpent

A New Hope Play every multiplayer game mode in the original game

Twice Nightly Complete New Game Plus

Biff! Bap! KaPow! Kill three enemies in a melee combo.

Swiped clean! Save all the Teensies in one world to win a Diamond Cup

Silver Revenge Obtain 48 medals on the original Arkham City ranked maps (as Batman)

I Had To Put Him Down Kill a Caragath with an Execution.

No Key For Me Clear the Millennium Tower stage without the boot-up key in Scenario Campaign Mode.

Sideways Style Complete all Drift Zones

Time Out Assign a settler to a pillory

Electric Avenue Use the EMP to take down 25 drones

Spread The Love - Kill 5 Helghast at once using the WASP's secondary fire Killed 5 Helghast at once using the secondary fire mode of the WASP launcher

The Angelic Ruins Completed the larger challenge in The Angelic Ruins coliseum

Elevator Action Knock off every Tripod during the Elevator Sequence

Do. Or Do Not. There is no Try. Play as all launch heroes in Multiplayer.

Danger Close Kill 15 enemies with a zero G grappling hook.

I'm ahead! Beat one of your friends' scores in a Challenge

The Butcher Kill 50 characters in 5 seconds.

Solid Gold, Baby! Earn any 70 Gold Medals on Missions, Strangers and Freaks.

Bring 'em to Justice Capture all warrants alive in single-player

Legendary Gunsmith Cold Darkness Challenge: Open 6 upgrade pry chests

Sandman Kill 5 Grims in a row with only headshots

Access Denied Absorb 1000 damage with Auger Shields

Dragonrider Tame and ride 5 dragons

I've Got You! Drag 9 unique allies to safety.

Spoiled For Choice Obtain Divine Bounty skill, equip Serpent Lash Godslayer weapon and Dragon Scales Legend outfit

World's Greatest Detective Complete all case files in single-player

Light Seeds Master Collect 1001 Light Seeds.

Show Off Display a weapon on a weapon rack, armor on an armor rack, and power armor in a power armor display

Ready To Rumble Obtain the Volcano Skill, equip Whispering Scourge Pandemic weapon and Reptile Hide Leviathan outfit

Pieces of History Collect all 33 mementos.

Little Wheel Played 10 spins of Roulette.

Perfectionist Cold Darkness Challenge: Shutdown all the towers without making any mistakes

Moonlight Sonata Complete the Eternal Reward Side Mission

Dressed For Success Obtain the Raptor's Eye skill, equip the Silent Sting Scorpion weapon and Hunter's Array Apex outfit

Defection Deterred Arrange matters so that the KGB Colonel kills Jasper Knight.

Distinguished Service Complete the game on Veteran difficulty.

Arms Dealer Buy all items from the Survival Weapon Armory.

Patriot Arrow Kill an enemy with the bow while ziplining in Echoes of a Cold War.

Seasoned Pro Complete all 7 downloadable content missions and receive the Tunic of the Shorn One

Fast Reflexes Endurance Challenge: Destroy 3 ceiling spike traps after being caught in them

Half-Truths Complete a mission without causing a single Military Alert.

Wretched Retch Use a Wretched Graug's Projectile Vomit on an Uruk Captain or Warchief.

Big Tournament Completed each of the larger challenges in all 3 coliseums

The Islander's Almanac Collect all issues of "The Islander's Almanac" magazine

Backstabber Kill 20 enemies with melée while they are idle