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For Science! Researched all technologies at least once before the year 2005 in a single game

Torque Completionist Gain all stars in 'Torque'.

Iron Mode Complete the game in Iron Mode.

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

None more hard Complete the Campaign on Nightmare difficulty.

He knows what they did last era Found all eight audio notes in the Ancient Labyrinth

Total Football Successfully convert a player to a new position in Career Mode.

I kill dead people Killed 40 ghosts in the Ancient Labyrinth

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

Friends With Benefits Had relations higher than 90 with all factions in the Modern Era

He Talked Too Much Defeat Emerson Miller

Better than the Best Complete the entire campaign on Authentic Plus difficulty with no manual saves

A Time of Wood and Stone Gathered the lost lore of Cadash Thaig ("Witch Hunt" downloadable content)

Extreme Manhunt Complete a Seasonal Manhunt mission on Challenge difficulty or above.

Street Fighter Complete all Dragon's Teeth Assignments

Get him! Win a Quick Race on a track in the Batcave (not unlockable in Split Screen).

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

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

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

Don't burn yourself out Defeated the Keeper

Tailor-made Chose a perfectly fitting armor

Clinical finish Score a goal from a cross when using Player Lock

Tough luck, chum! Complete Ragnarök - Part I on any difficulty.

Call of the Void Complete Ragnarök - Part II on any difficulty.

AMG Completionist Gain all stars in 'AMG'.

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

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

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

True Challenge Complete 10 enhanced objectives across all matches

Go Figure Plant ShadowChild's figurine.

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

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

Real men don't need a map Just in case you picked up a shielding map

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.

Newcomers Play a season with a newly Created Club

Psychological warfare Manipulated the Keeper's magic schools

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

Muppet Mastery Complete The Muppet pack's story

King in the North Complete all Final Stand Assignments

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

Respect for the dead Plundered all four resting places

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

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

Can You Feel that Shield Power? Complete "Homebase Storm Shield Defense 6"

Rough Rider Destroy 15 vehicles during a single challenge

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

Blitzkrieg Complete the single player campaign in under 12 hours.

Played with fire Defeated the Keeper after changing his initial magic school to the fire type

Become a Superhero Complete "Hero Training - Stage 2"