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Gotcha, didn't I? Kill all Zombie Hand collectibles.

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

Kickin' Up Dust You helped MJ and Roxy get the Witnesses free

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

Hoarder Find all Journals, Comics, and hidden Weapon Upgrade Tokens.

Ain't Nowhere Safer You captured Slim Beaumont

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”.

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

From the Shadows In Shadows of Evil, spot the Shadowman fives times in one game.

Tactical distractor Distract 20 enemies with flint or rocks

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

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

I can do anything I want. I got guns Complete the weapon mastery for 3 weapons.

This is no Sunday School picnic! Complete the Campaign on Hard difficulty.

The Butcher Kill 50 characters in 5 seconds.

Long way down Throw an enemy off one of the bridges (Mission 8)

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

Getting Off Track Complete mission “Off the Rails”.

Legendary Gunsmith Cold Darkness Challenge: Open 6 upgrade pry chests

End of the 'lein' Find and kill the visiting General (Mission 3)

Covered in Blood You met Bonnie Harless

Health Nut Collect All Health Upgrades

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

Total Rampage! Destroy every single building and helicopter and win the final battle in Monster Escape (playing as the VR Monster).

Devotchka You survived the trip to Boicherot's

Bounty: Hunted Complete mission “Where It All Started”.

Squeak! Win the game in Cat and Mouse (playing as the TV player).

Didn't Miss A Beat Complete the Balrog without falling

Socket-to-me In Zombies, upgrade a skill.

National A License Complete the A License.

Big Money You got a hot tip on a loose nuke

Haunted Places Investigated the 3 "Places of Darkness"

A friend in need Revive other players 50 times.

Aid and Comfort You helped Donovan end Connor Aldridge

There Are No Dominos You secured the nuke

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

Distinguished Service Complete the game on Veteran difficulty.

Arms Dealer Buy all items from the Survival Weapon Armory.

Ruin on the Horizon Complete mission “Riding to Ruin”.

Manhunt You completed the most wanted side mission.

Fan Fare Eat all the Questers

The Blast and the Furious Defeat Evil Lilith.

Brothers Unlock Guardian Force Brothers

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

Join the 200-mph Club Reached a speed of 200 mph (322 km/h).

That's a lot of them, and only 4 of us Complete every campaign level with a full team of four players.

…Worse Than Dying You killed Bonnie Harless