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That's How We Roll! You unlocked the special ability of Brucie's helicopter ride.

Minigunned - Destroy all targets Destroyed everything while using the Minigun on the Intruder

Labyrinthine Mind Found Anton Sokolov in the Clockwork Mansion

Blow Up the Playing Field Use a secret explosive weapon to kill 10 enemies. (Agony Bolt effects negate results)

The Gully Completed the larger challenge in The Gully coliseum

Full Potential Unlock All Combat Moves & Upgrades

Gobble Gobble You got a turkey in 10-pin bowling.

Bobble-trap Collected 15 Claptrap bobbleheads

The Rod of Arafel Complete The Rod of Arafel

The Lubricator Found 25 oil cans

Take that, Zombies! Finish the game on Normal difficulty or higher.

What a party! Collected 3 panties, 5 fish in a bag, and 15 pizzas

Keep the Good Times Rolling Chain a 20-defeated combo in Slayers.

Morbid Theft Steal a corpse for Mindy Blanchard

I Can Has Cake? Collect the Voidwalker

Now It's Personal - Kill 1000 Helghast Killed 1000 Helghast

Every Nook and Cranny Visit all places on all maps.

Shattered - Destroy all glass in the Labs Destroyed all glass panes in the Stahl Arms South laboratories

Lights Out! In 'Black Cats', blast out all of the spot lights in the Japanese cargo convoy. (Solo only)

How's It Hanging? Clean up the Dry Docks

Item Management This cave echoes like crazy. Better put the gun away and keep quiet. (Ch. 8)

Bathed in Flames Enough running! I'll burn her to the ground right here! (Ch. 10)

Clipped Wings Defeat Archon

Dial B For Bomb You unlocked the special ability of Packie's car bomb placement.

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

Stains of Heresy Complete Stains of Heresy

Tearing Time A New One Collect the Phasewalker

The Mad Queen Complete The Mad Queen

Cleaned The Mean Streets You caught 20 criminals through the police computer.

It's Not Over Defeat Samael

Lord of the Black Stone Complete Lord of the Black Stone

Shot in the Dark Kill 10 enemies while the lights are out in the subway in 'Eviction'.

Completionist Completed all missions in Secret Armory

Architect Complete 'Vendetta' on Veteran difficulty. (Solo only)

Bringing the Pain Defeat 50 players using physical attacks in Versus.

Not Part of the Job Description The water's rising, but we'll get out of this without a scratch. (Ch. 5)

Diamond Geezertron Unlock the final skill in either skill tree

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

The Root Of Corruption Open The Well Of Souls

The Last Laugh The joke's on who?

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

Chain Reaction You exploded 10 vehicles in 10 seconds.

The Big Boss Defeat Absalom

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

I like what I'm seeing Like a ship

Racing and Pacing Finish the game in five hours.

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

The Power of Three Completely upgrade three weapons.

Twice Nightly Complete New Game Plus

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