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Elements Completionist Gain all stars in 'Elements'.

Horsepower Completionist Gain all stars in 'Horsepower'.

Bookworm Bookworm - Found all journals

Took this thing on a test flight Complete Arcade mode with a custom made ship, at Veteran difficulty level

RPM Completionist Gain all stars in 'RPM'.

Pea Shooter Kill a Rhino with only a pistol in Nightfall in Regular or Hardcore difficulty.

Working Vice Shoot 10 stacks of cocaine in ‘Hostile Takeover’ Operation.

Atomic Obliteration - Complete all the Challenges

Moneybags Have 15000 credits in the bank in Outbreak.

Turbocharged Completionist Gain all the stars in 'Turbocharged'.

Circle of Life Complete 10 Food Chains in a single level

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

Lamborghini Icons Completionist Gain all the stars in 'Lamborghini Icons'.

Playin' Hooky Use the Pirate hook on 5 unique ziplines.

Burgle Burgle Burgle Steal 10 kills from a teammate in Outbreak.

Grease Monkey Grease Monkey - Upgraded all weapons

Unite In Speed Completionist Gain all stars in 'Unite In Speed'.

Short Stack Find the mysterious visitor in the cliffs of Repugia.

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

Doctorate in Thermodynamics Kill 2 scientists with a single grenade in ‘Self Destructive’ Operation.

The Pipeline Complete mission 4: "The Pipeline"

Test the Product Knife 10 stacks of cocaine in ‘Hostile Takeover’ Operation.

Retribution Dealt with the mercenaries that killed the Vael family. ("The Exiled Prince" downloadable content)

Jeepers Peepers Acquire the Eyeball Costume.

Birdbrain Beatdown Defeat Araxia in battle.

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

Dark Void 100% Complete Earn all trophies

Revolutionary Hero Complete all quests in Repugia.

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

Pacesetter Completionist Gain all stars in 'Pacesetter'.

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

Sleuth Unlock all intel (videos and audio files)

Heartwarmer Crafted a Fire

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

Gong like the Wind In IX, defeat all 8 challengers summoned by a gong within 5 minutes

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

Velocity Completionist Gain all stars in 'Velocity'.

Gran Turismo Rally Complete the "Gran Turismo Rally" Special Event.

Stowaway In Voyage of Despair, spend 5 consecutive rounds in the Cargo Hold

Evolution Completionist Gain all stars in 'Evolution'.

Dream Race Win the ultimate three-way showdown between a Ford Mark IV Race Car, a Ferrari 330 P4 Race Car and a Jaguar XJ13 Race Car.

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

West Side for Life In Blood of the Dead, reach Round 20 without leaving the West Side of the island

Undiscovered Truths Find all the intel hidden in Nightfall.

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

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

I Know a Shortcut In Voyage of Despair, take every fast travel path in a single game

You know you're REALLY Insane, right? Complete the entire main campaign on Authentic Plus difficulty

The Sky Is Mauling! Kill 3 enemies with Mortar Strike in ‘Air Traffic Control’ Operation.

Making a Point Kill both bosses with head shots in ‘Hostile Takeover’ Operation.