Darkdata

Perkaholics Anonymous! Survive until round 20 without buying a single Perk. (Map Pack 3 only)

40 Knives! Kill 40 zombies with the bowie knife. (Map Pack 3 only)

Campaign Kitty Obtain all 108 medals on the original Arkham City campaigns (as Catwoman)

Veteran Collector Find all treasure within a single locale.

Deer in the Headlights Stab five stunned enemies in a row in the "Light 'Em Up" Special Ops mission.

David vs Goliath In Checkmate, destroy the APC using an RC-XD

Hey, Catch! Throw and hit an enemy directly with a Flammable Cannister then blow them up with it

Ugly Tastes Terrible Play poorly during the final showdown

Rapid Reflexes Get 5 Headshot Kills during a single use of the Adrenaline Stim in Campaign

Demon's Roar As Magik, land 3 KOs within a single tranformation into Darkchild.

Shot Blocked Shoot the gun out of the air in 'Flashpoint' before a terrorist catches it

Frequent Flyer! Use the teleporter 8 times. (Map Pack 3 only)

In the Belly of the Beast In Zetsubou No Shima, survive getting consumed.

Happy Trails Complete By the Trail of Our Dead

The Cleaner Escape as a traitor with 50% of any level’s total loot in Arcade Mode or Multiplayer Ranked Match.

Soul Survivor Reach round 15 in Nazi Zombies without getting revived. (Map Pack 2 only)

I Call Shotgun! Drive a vehicle with a Sentry Gun on the back and have it kill 5 enemies

Speed Slayer Kill the Breeder in less than 5 minutes in Nightfall in Regular or Hardcore difficulty.

Bulldozed In Ground Control, crush 25 enemies while driving the tank

Taking Flight In Gorod Krovi, ride a Dragon.

Throttled Survival Kill the Breeder while using a Relic in Nightfall in Regular or Hardcore difficulty.

You Want Blood? 1000 kills.

Tag, You're it! Use the Spotter Scope to tag 60 enemies or items in Open Combat Missions

2-fer Using the EBR-14, kill 2 enemies with 1 bullet 5 times in 'Payload' without sounding the alarm

Sub Zero Complete the "Arctic Recon" Special Ops mission on Veteran difficulty.

Helpful Stranger Revive a player from a different Squad in MWZ

Outstanding Observer Complete many requests for the Lynian Researcher.

Elevator Out of Order Reach the roof in 'Highrise' under 45 seconds

Chimp on the Barbie In Ascension, kill a space monkey with a fire trap.

Survived Mayday Kill the Kraken for the first time in Mayday in Regular or Hardcore difficulty.

Der Meisterbogenschuetze In Der Eisendrache, obtain all of the ancient bows.

Targets Acquired Get past the first gate in Awakening in Regular or Hardcore difficulty.

Discriminating Buyer Use exactly one of each care package in the "Special Delivery" Special Ops mission.

Back in the Field Acquire the Major's keycard in 'Deep Cover' within 90 seconds without being detected

Wired Up Place 100 wires.

No Going Back Complete 5 missions in Co-Op.

Gravestone Kill 100 Zombies with a vehicle in a single deployment in MWZ

Undiscovered Truths Find all the intel hidden in Nightfall.

Hot Pants Complete I Now Know Why You Cry

Big Game Trapper Use a hypno trap to turn a Rhino friendly in Mayday in Regular or Hardcore difficulty.

Postmaster Complete any outpost by activating all of the generators in Regular or Hardcore difficulty.

Lights Out Complete the "Light 'Em Up" Special Ops mission on Veteran difficulty.

Ladies Night Beat an Echo Six Expansion Pack mission with the 3 female characters in your party.

Pack Addict! Upgrade 5 weapons at the Pack A Punch Machine. (Map Pack 3 only)

Robin Revenge Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)

Nightwing Revenge Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack ranked maps (as Nightwing)

Oh Yeah!!! Complete Nothing is as it Seems

Got Your Back Revive your Co-Op partner 10 times.

Deliver This Complete the "Special Delivery" Special Ops mission on Veteran difficulty.

You Can Pet The Dog Pet a Hellhound in MWZ