Jay-AEC

The Rock Or The Hard Place Chose to either infect or cure Eridanos.

Alive And Kicking (And Shooting Too!) Discovered the biggest secret in the aetherwave industry.

Cleanest Hands You completed The Brigmore Witches without killing anyone

Synthesize This Found Olivia Ambrose's journal.

You Have Selected Regicide! Killed the Slug Queen.

Put Out of Their Happiness Killed 50 Infected Humans or Parasites.
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Lemur Located: Pisa Find Mort in Pisa

Project Rub Complete any Race event without collisions.

Rush Hour Get a Double Kill with the RC-XD in Multiplayer

Murder on Eridanos Completed Murder on Eridanos on any difficulty.

Biggest Star Under the Big Top! Get 5 Stars in each Circus Act

Atlantis? Find an underwater ruin.

Floater Parachute off a Gantry Crane onto the roof of the Harbormaster's Building in 'Precious Cargo'

Betrayal Kill an enemy from behind at close range while disguised by the Sleeper Agent

Peril on Gorgon Completed Peril on Gorgon on any difficulty.

High and Dry Complete "Worm on Trap"

Ruler of Everything Complete all activities.
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Card Master Sora Collect all Card Collection entries in Jiminy's Journal.

Record Keeper Sora Collect all Jiminy's Journal entries.

Feline Revenge Obtain all 72 medals on the original Arkham City ranked maps (as Catwoman)

Roman Circus Superstar Get 5 Stars in all Rome Circus Acts

Has science gone too far? Get a kill using the HT-95 Levkov, XD-1 Accipiter, Rorsch Mk-1, and Schipunov 42

Washington Raiders Complete the full Operation Dark Hours raid in a group of eight players.

Show-off Complete a multiplayer match using your personally created landscape

Finally Home Complete every Adventure level in The Journey Home.

We Have Normality Beat the Main Campaign on Normal difficulty.

To Know Your Enemy... Get 100 Kills while using Mutant Injections in Zombies

Level Master Riku Max out Riku's level.

First Blood Finish a round of Last Stand

Abomination Domination Complete Overgrown Temple on Adventure or Apocalypse difficulty.

A Vacation in the Wilds Defeat every boss in Inkwell Isle IV

Checkmate Defeat all of the King of Games' Champions

Super Fuel Power a Furnace with Lava.

Shaken, not stirred Kill a terrorist with a martini

Goodbye Cruel World 5 Killer Skulls Collected

Hired Gun Complete 20 Contracts in MWZ

Death Adder Take out opponents with items one hundred times online.

14 carats Gold challenger Get 58 Gold Medals on Alps Public Challenges

Roll Credits Kill Jason.

The creator Finish Mission 4

Suicide mission Eliminate a guard with a booby trapped clone

Technical Wizardry Succeed at a cumulative total of 100 reversals (single player only).

Change of Sheets Dye your bed a different color.

Amateur Putter Take 500 shots

Deforestation Kill 15 Seeder Turrets in one game in Mayday in Regular or Hardcore difficulty.

Dose of his own medicine Kill a torturer in a duel

Pretentious Do not use any item during a mission

Living in the Past You conquered 5 warp zones! you're so old school...

Fertilizer Man Kill 200 zombies in a single game. (Map Pack 2 only)

2010 Hall of Fame Nominee Induct a Superstar into the HALL OF FAME.