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

Turnabout is Fair Play Kill 50 Cryptids with the Venom-X weapon in Nightfall in Regular or Hardcore difficulty.

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

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

A Grayson Graduation Unlock Nightwing

An Endless Winter Complete Chapter Four

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

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

Upping the Ante Kill the Kraken using a Relic in Mayday in Regular or Hardcore difficulty.

Big Top! Achieve a score of 2500 or higher in "Gonzo's Endless Cannon Run Ride!"

The circle is now complete Get to Rank 100

Hat Trick Kill 3 aliens with a single shot from the NX-1 Disruptor in Regular or Hardcore difficulty.

Out of the Shadows Unlock Talia

Collector Extraordinaire Collect 100% of the Prize Bubbles in The Journey Home.

Mass Exodus Complete the final Ancestor encounter in Regular or Hardcore difficulty.

Computer Privileges Change the screensaver on the Batcomputer

Reunion Visit another Player's Base

Dog Fight Kill a Gargoyle with the Vanguard in Awakening in Regular or Hardcore difficulty.

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

Knightfall Complete Chapter Five

Captain Pig-ard Achieve a score of 4000 or higher in "Pigs In Elevators (In Space)!"

"A hero can be anyone." Complete Story Mode

Splicer God Complete the "Wrath of the Machine" raid on heroic difficulty.

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

The Architect Successfully build all of the Schematics in Mayday in Regular or Hardcore difficulty.

Mudplugger Win 5 Festival races using a Mudplugger

Mayday Completionist Complete all Challenges and kill the Kraken in Mayday in Regular or Hardcore difficulty.

Spelunker Find all of the Intel in Awakening.

Ensign Reach round 10 in Carrier.

Inquisitive Mind Find all of the Intel in Mayday.

Diploma In Creation Complete all the tutorials in the LittleBigPlanet™2: Move Pack

Close Call Win a race by a margin of less than 0.1s

Big Baller Earn 75,000 points in a single Nazi Zombies game. (Map Pack 2 only)

Not Big Enough In Der Eisendrache, trap and kill a Panzersoldat using the Ragnarok DG-4.

Tortoise Win a race without using boost

Young Star Collect 25 Stars in Career

The Final Chapter Find all 7 story related intel files in Exodus.

Acted Alone In Verrückt, headshot 20 zombies in the courtyard from the second floor of the Asylum.

You Wish Hit an Ancestor with a Hypno Knife in Regular or Hardcore difficulty.

Time to Slam In Der Eisendrache, revive two players protected by the Ragnarok DG-4.

Unstoppable Complete the final Ancestor with at least 1 relic in Regular or Hardcore difficulty.

Twice The Fun Escape Awakening using two Relics in Regular or Hardcore difficulty.

Big Rig Win 5 Festival races using a Big Rig

The Grand Tour In Revelations, visit every unique location within 2 minutes.

Above And Beyond Complete a song with an average individual multiplier above 4x

Awakening Completionist Complete all Challenges and escape Awakening in Regular or Hardcore difficulty.

Nemesis Completionist Complete every challenge and the final Ancestor encounter in Regular or Hardcore difficulty.

From Beyond Memorize Seven Sigils at Once

Wield a Fist of Iron In Gorod Krovi, wield the Gauntlet of Siegfried.

Time Sink Race for a total of 10 hours