Bocker

The Ultimate Sacrifice In Zetsubou No Shima, retrieve the Skull of Nan Sapwe.

Car Explosion Cause an enemy to die in a car explosion

To Jugger or to Jugger-Naut Kill all juggernauts after they land on Veteran difficulty in the "Vertigo" Special Ops mission.

Nahantu Sightseer Explore all of Nahantu.
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High Score Score 800,000 points in one game -- with Game Settings set to Hardcore.

A Horrible Truth Recover the Blacksite Data

With Extreme Prejudice Skulljack an ADVENT Officer

Skitchin' Reach 200 km/h with the Hoverboard for 10 seconds while grappled to a vehicle

Tinker Build an experimental item in the Proving Grounds

Go Figure Plant ShadowChild's figurine.

Reaper Defeated the Harvester ("The Golems of Amgarrak" downloadable content)

Deadhead Get 150 zombie headshots in a single game. (Map Pack 2 only)

Help Desk Get the Blade lobby desk clerk to help you bypass security.

Extract The Data... Get the data that Pritchard is after from within the Palisade Blade.

Expose The Truth! Decide what to do with the evidence you uncovered.

Not My First Rodeo Ride a friendly Agency drone for 1,000 meters, without getting off it

You Have 5 Seconds to Comply Build a S.H.I.V

It's a Trap! Kill at least one zombie with three different traps in a single round. (Map Pack 2 only)

Cloak and Dagger Met secretly with the agent of the Divine. ("The Exiled Prince" downloadable content)

Ride the Lightning Build a Firestorm.

Tier One In a group of 4 finish an Operation on Challenge with 5 directives enabled.

Rough Rider Destroy 15 vehicles during a single challenge

Drone Joust Defeat an Agent riding an Agency drone while riding an Agency drone yourself

A Grim Key Recover a Codex Brain

Campaign Wonder Obtain 114 medals on the original Arkham City and Robin Bundle Pack campaigns (as Robin)

Campaign Nightwing Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing)

Clean Sweep Complete the System Rift Jensen Story without killing anyone.

It's a Trap! In Shi No Numa, kill at least one zombie with three different traps in a single round.

Controlled Chaos In Revelations, override all of the Corruption Engines before round 6.

Spirited Sparring Kill 500 enemies with Ultimate Skills as a Spiritborn.
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A Just Cause Decide what to do with the Altered Biocell.

Not One Inch In Gorod Krovi, complete a Lockdown Event.

Murder He Wrote Find all pieces of evidence behind the Saridakis murder.

Pro Reached Driver Level 15

Too Hot to Handle Complete the server chamber area without being detected by any HeatEye cameras or enemies.

Knock Knock Get Slaw to open the security door within the Palisade Blade.

A Criminal Past Complete A Criminal Past.

Don't Reach, Kid Find the basketball and put it in the hoop.

Eggstra Nemesis! Complete the Egg-Stra XP challenge and then activate a generator in the Nemesis DLC package.

Varterral's Fall Defeated the varterral on Hard or Nightmare difficulty ("Witch Hunt" downloadable content)

Coroner Find all of the wearable items that make up the Taken Shape.

Sanguine Serum In Zetsubou No Shima, drink fresh Widow's Wine.

Rebel Radio Build Resistance Comms

Quid Pro Quo Help out a fellow inmate by making a trade.

See All, Know All Build the Hyperwave Relay.

Code of Conduct Complete A Criminal Past without killing anyone.

Dressed for the Occasion Blend in with the proper prisoner jumpsuit.

Demo Pro Destroy 25 vehicles during a single challenge

Danger Drone Defeat 10 enemies during a single Agency drone ride

TBoGT: Past the Velvet Rope Score 80% or above in all missions. (The Ballad of Gay Tony)