ContraChief

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

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

The Last Laugh The joke's on who?

The Bigger They Are Defeat 6 Rancors

Know DP? Know madness Complete the game on Ultra-Violence! difficulty

I like what I'm seeing Like a ship

Racing and Pacing Finish the game in five hours.

Who Collects The Collector? Defeat the wandering Debt Collector.

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

Love is the Fifth Dimension Marry your friends.

Every Woman for Herself Finish the game without saving anyone using Jill.

Scavenger Hunt Found all evidence in Case 2: Planting Evidence

Grey Warden Killed 100 darkspawn

Danger Zone Buy all items from the Survival Air Support Armory.

The Car Keys Find the car keys

That is no trinket you carry. Complete 'Weathertop'.

TITAN Completed the Titan levels

Fight Like Hell Do 5000 damage as a Player Demon in BATTLEMODE

Twice Nightly Complete New Game Plus

It's a Wash Complete mission “The Name of the Law”.

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

Meat and Greet Complete mission “Enter the Psychoscape”.

Thousands of candles Defeat the Guardian

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

The Final Countdown You showed millionaire Hugh Darrow that his logic was flawed.

Sunday, Sunday, Sunday! Noticed the discrepancy in Jayne Barrett's security records

Gunpletionist Master all Weapon Mods in a single save slot

A Tough Job Identified both samples of DNA on the garment from John Barrett's room

Tapped Out Completed Case 3: Tapped Out

Meet Cypher's Edge Max out the Hit Meter 25 times

Not a sole survivor No-one survived!

Great! ...Where are we going? Form The Fellowship of the Ring.

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

King of Adventure Discovered all of the treasure chests

Elevator Action Knock off every Tripod during the Elevator Sequence

You got a better way? Maxed Conrad and Fliss's Relationship

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

The Fat and the Furious Complete a Continuous Speed Run as Doughnut Drake

All Washed Up Completed Case 4: All Washed Up

Technically Perfect Completed a case with 100% Skill

Sociopathic Networker Talked to all of Claptrap's Holographic Projections.

He Said, She Said Asked Will Rice about Veronica's real alibi

Getting Off Track Complete mission “Off the Rails”.

Boss Fight Completed Case 5: Boss Fight

Man vs Monsters Play 25 BATTLEMODE matches

Corporate Warfare Protect a client's interests by performing a less-than-hostile takeover.

Exorcist Triumphed over undying lowerworld souls in seven fierce battles.

Health Nut Collect All Health Upgrades

Redemption Complete Game - Light Side

Smoke the Hive Found enough evidence to destroy Beatriz Salazar's drug empire