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Acquire Waffle Weapons! Obtain the Ray Gun, DG-2, and the Monkey Bomb at the same time in a game. (Map Pack 3 only)

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

Flyswatter Destroy all helicopters in the "Vertigo" Special Ops mission.

Perkaholic Have 9 perks active at the same time in MWZ

That's One Way to Do It... Destroy an airborne enemy helicopter with a Mortar Strike

Going to the Vet Earn the "Veteran" Challenge Collection.
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The Most Famous Hedgehog in the World Have your photos taken in Studiopolis Zone

Under the Radar Select a Starting Location and use an Informant to smuggle an item into Milton-Fitzpatrick.

High Score Score 800,000 points in one game -- with Game Settings set to Hardcore.

Taking Blood Steal the Blood of Lathander from underneath Rosymorn Monastery.

Pinnacle Complete the "Vertigo" Special Ops mission on Veteran difficulty.

Peak Performance Get a score above 1,000,000 points on The Last Yardbird.

The Postman Delivered the journal to Lucien.

Steamroller Achieve a win streak of 5 ranked online games.

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

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

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

Skill Swap Train Kinu and Kane

King of Bling Earn ALL of the Clear Gems

Ran Escape Sumoto Castle (Claws of Awaji)

Extra Luggage Select a Starting Location and use an Informant to smuggle an item onto Haven Island.

Hard Headed Collect 1000 helmets

Escaped Awakening Escape Awakening for the first time in Regular or Hardcore difficulty.

Burning times Complete a level on Master difficulty without using bombs, overdrive or boost with a custom ship

Maniac Get an S-Rank on all stages on Hard difficulty or higher.

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

141 Ready Complete the campaign on Veteran

Egg-stra Awakening! Complete the Egg-Stra XP challenge and then scan an obelisk in the Invasion DLC package.

No Mo' Modi Get out of jail, but not for free

Annihilation Get 100 Elite Zombie Eliminations in Zombies

Bleeding Knuckles Reach a lifetime score of 5,000,000.

Nightfall Completionist Complete all challenges and kill the Breeder in Nightfall in Regular or Hardcore difficulty.

Going Up… In The Darkest Shore, unlock the Ubersprengen.

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

Overachiever Watch the 100% bonus ending

I am death incarnate! Beat the game on "I am death incarnate!" difficulty or higher

Bloodlust Defeat 10000 enemies.

An honest mistake Kill an allied worm in an online match.

gnilB fo gniK Earn ALL N. Verted Gems

Enough Coin to Disappear You survived The Brigmore Witches in low chaos with 10,000 coins

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)

LEGACY Complete all recordings

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

Worst Nightmare Master the Worst Nightmare Dark Knight track

Dipped in Gold Purchase all Safehouse and Player Upgrades in Campaign

Lock, Stock, and Barrel Complete all Mission Stories in Golden Handshake.

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

Remember Me? Deal the winning blow with a resurrected worm.

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