DuncTheFreak

Bag lady Find all three hidden bags in one chapter

It's Not Over Defeat Samael

Lord of the Black Stone Complete Lord of the Black Stone

The Scene of the Crime Rescue Mad Hatter's first hostage.

The Masterful Marksman Complete the entire main campaign on Marksman difficulty

Glutton for Punishment Used Ironsides to collect 20 rounds of ammo or more in Burial at Sea - Episode 2.

It's Raining Cats and Hotdogs Completed a round using the Mutator.

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

Treasure Master Collect 200 treasures in Scenario Campaign Mode.

The Harder They Fall Defeat 10 AT-STs or AT-KTs

Diamond Geezertron Unlock the final skill in either skill tree

The Bigger They Are Defeat 6 Rancors

Chain Reaction You exploded 10 vehicles in 10 seconds.

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

The Root Of Corruption Open The Well Of Souls

The Last Laugh The joke's on who?

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

Shut Down Shut down an entire Tower Network

Headcase Headshot a Demolition mech 20 times.

Blast Corps Kill 30 enemies with explosion damage.

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

The Big Boss Defeat Absalom

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

Queensberry Rules Perform a 4-hit combo with your bare fists in End of Zoe.

I like what I'm seeing Like a ship

Head Games Rescue Mad Hatter's second hostage.

Somebody Perform 25% of the Single Player Skillshots

Career Criminal Attain 100% Game Completion.

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

Cold Fusion Unlock Hidden Fighter "Cyber Sub-Zero"

Twice Nightly Complete New Game Plus

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

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

Rolled Over You managed 5 car rolls in a row from one crash.

In Storybook Endings Lock up Mad Hatter in GCPD.

Untouchable Complete a Chapter without losing any health.

Counterintuitive Perform 20 Counter Attacks.

Escape Velocity Jump over 200 yards (182.88 meters) through a Billboard

What Doesn't Kill You... In story mode, successfully parry 10 attacks in a row in one minute or less.

Silverback Destroy a total of 10 Mastiffs during story mode.

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

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

File R-03: Status - Closed Complete File R-03: Mile High.

And Embrace What You've Become Install at least one experimental augmentation.

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

DLC: Zombies: Blood Zragon Kill the Blood Dragon in Killer Climate.

“Worlds of Hurt” – Collector Found all collectable Roses in “Worlds of Hurt”

Metalworker Awarded for defeating a metal slime.

Redemption Complete Game - Light Side

DLC: Zombies: ReZolution Complete all 7 movie pitches.