TroytheAverage

Greenlight Protocol Powered the reactor.

Spectrum Needler Buddy Acquired Spectrum Gatling, The Needler, and Udder Buddy.

Cornelia's Hope Completed the mission "Cornelia's Hope."

Rookie Squad Complete a map in Co-Op.

Lucky Stiff Found Lucky Montoya's body.

Have you tried turning it off and on again? Complete Terminal Error on any difficulty.

Oh Apocalyptic Chanbara! Cleared the story difficultly "Berserk"

Research and Development Upgrade the Rarity of one common vehicle of the HOT WHEELS™ - Batman Expansion.

Abyss Survivor Cleared Infinite Survival floor 51

True Love Found Reunite Aym and Baal with Forneus.

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

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

You Died Alot Get killed by Jason 100 times.

A budding Investigative Mind Completed 5 quests

Behind the Curtain Complete Beckett's story

Kali Ma Complete Abaddon Asylum on any difficulty.

Alpha Defeated the Alpha.

Improvise, Adapt, Overcome Crafted the first gadget.

Mutt And Jeff Asked a companion to be the Bad Inspector.

Beyond Power Unlocked the entirety of the evocation or ultima tree for any job.

Regenerate Help Sozo.

Total protonic reversal Complete Return to Hell on any difficulty.

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

Getting Familiar Solve 10 puzzles.

None more hard Complete the Campaign on Nightmare difficulty.

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

I Got This In The Darkest Shore, survive the initial beach rush without using any machine gun turrets.

Survival Challenge: Novice Cleared Infinite Survival floor 8 without having taken any damage

Viva, Viva Chanbara! Cleared the story difficultly "Violent"

Special P.E.T. Benefits Acquired Special Delivery, P.E.T., and Employee Benefits.

Family Reunion Achieved a compromise between Olivia and Minnie.

Hope and Despair Completed the additional mission: "Ebon Memories: Hope Within Despair."

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

Master Survivor Crafted all consumables.

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

Putting Together the Initial Pieces Solved the Alien Console puzzle.

Tinkerer Crafted a weapon upgrade.

Real-Time Analysis Used the pulse scan to reveal an enemy weak point.

Donut Mess with a Cop Unlock Officer Dick.

Unstoppable Impulses Went berserk 100 times

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

Wish Upon A Star Complete Sofia's story

Going to the Vet Earn the "Veteran" Challenge Collection.
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Get him! Win a Quick Race on a track in the Batcave (not unlockable in Split Screen).

The New Fort Knox Gain 1500 gold bullion

Gold Mine Won $100,000 total.

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

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

Good Listener Found 20 Portable Phonographs.
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Robin Revenge Obtain 78 medals on the original Arkham City and Robin Bundle Pack ranked maps (as Robin)