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Gunpletionist Master all Weapon Mods in a single save slot

Komodone Win against Komodo Joe in the Adventure Mode.

Kamikaze Complete a level on Regular difficulty or higher using only melee or grenades. (Solo only)

Killer Look Complete the Mayor's outfit.
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Diamond Geezertron Unlock the final skill in either skill tree

Gladiator Completed a Coliseum Attack stage

The Root Of Corruption Open The Well Of Souls

Shut Down Shut down an entire Tower Network

Bring Down the House Explore Fort Wolcott.

Mightier Than The Gun Kill all Visionaries in a map - and make it to the exit - without using a gun.

Most Wanted Rides Own all the Most Wanted cars (Single Player)

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

Master of Hexes Learn all hexes

Best of the Best Invest in each type of upgrade available for a specialization.

Master Architect Build three houses

The Big Boss Defeat Absalom

A Stroll In The Demonic Park Complete the game on any difficulty setting

In Storybook Endings Lock up Mad Hatter in GCPD.

“A Shocking Turn of Events” – Expert The player has rescued the Little Sister in “A Shocking Turn of Events” in under 4:00

Find all events Awarded when you find all 15 events on Big Surf Island

Titan Mastery Fully upgrade a Titan Subclass.

For Close Encounters Get 10 one-hit head-shot kills with the shotgun in the single player Campaign.

Completionist Completed all missions in Secret Armory

The Last Laugh The joke's on who?

Squad Goals Score a Goal while in a Club Match (Online Matchmaking only)

Simple Geometry Kill 2 enemies with a single rocket.

Silent Knight Complete a predator encounter using only silent takedowns in the Main Story

Get some! Fire at least 150 rounds in one burst, killing at least 10 enemies.

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

Careful What You Wish For Read the mind of a lonely cat

Made it Out Alive Escape 1st time in Regular or Hardcore difficulty.

Mauled Wreck 10 cops in a single pursuit in the Ford F-150 SVT Raptor

Parachute Climber Open the parachute and then land on foot 300 meters above the starting height.

Master of Sorcery Learn all sorceries

Oversight Become Overseer

Man vs Monsters Play 25 BATTLEMODE matches

Locked and Loaded Develop 300 or more development items.

First Among Equals Win a match of skirmish or domination.

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

Love is the Fifth Dimension Marry your friends.

The Beginning of the End In Shadows of Evil, complete all Rituals.

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

Spelunker Complete one Tomb of the Fallen

Skilled Clear any mission (including Side Ops and Extra Ops) with a S-rank

Violent Delights Kill Charlie and Fia with a single bullet.

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

Who Collects The Collector? Defeat the wandering Debt Collector.

Hell-Burbia Completed the larger challenge in the Hell-Burbia coliseum

Legendary Gunsmith Cold Darkness Challenge: Open 6 upgrade pry chests

Silent Disco Get in and out of a map without being spotted - and kill all Visionaries present.