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Time's Teller Defeat the Unknown.

Man No More Build a suit of powered armor.

Orb of Delusion Obtain the Orb of Delusion artifact.

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

Street Fighter Complete all Dragon's Teeth Assignments

Fully Loaded Maximize all upgrades.

Spidery Point Destroy the Spider Boss on Arachnophobia, without destroying any of its mini guns.

Alright, Alright Survive until round 10 in Infection.

Make Friends Acquire all six main characters.

Crystal Clasp Obtain the Crystal Clasp artifact.

Skirmish - Chapter XIV Finish the levels from Chapter XIV in Squire difficulty

Head Trauma Use every type of melee weapon on a zombie

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

Survivor Survive until Round 25 in Outbreak.

Terma-nated Defeated Solomus and the Terma Ten.

Chapter 5 Speedrun Complete a Speedrun of Chapter 5 below the target time.

Don't burn yourself out Defeated the Keeper

One with Oblivion Defeated Lambda Theos. Impressive!

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

Seekers of Secrets Complete all Secret Portals as both Sora and Riku.

PC Load Letter Use the 3D printer 15 times in a single match in Outbreak.

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

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

Tailor-made Chose a perfectly fitting armor

Chapter 8 Speedrun Complete a Speedrun of Chapter 8 below the target time.

Champions of the Cathedral Complete all Special Portals in La Cité des Cloches as both Sora and Riku.

The Wanderer Manage three different clubs in three different countries in a single Career

Who Were Those Guys, Again? Defeated Veigue, Reala, and Amber.

Chapter 7 Speedrun Complete a Speedrun of Chapter 7 below the target time.

Multiplicitous In Zombie Rush, get your score multiplier up to 100

Champions of All Districts Complete all Special Portals in Traverse Town as both Sora and Riku.

Terminated! Take terminal damage while travelling at over 140mph (225km/h).

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

AMG Completionist Gain all stars in 'AMG'.

Save the Girl... Yet Again Save a damsel in distress for the third and final time.

Champions of the Dark City Complete all Special Portals in The World That Never Was as both Sora and Riku.

The Bereaved Unlock Wendy

Ballard's Crossing Complete mission 5: "Ballard's Crossing"

Not a Fluke Win 10 Blackout games

Tank Sympathizer Destroy both generators on Claustrophobia without killing a Tank.

Champions of the Digital World Complete all Special Portals in The Grid as both Sora and Riku.

Champions of the Endless Ocean Complete all Special Portals in Prankster's Paradise as both Sora and Riku.

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

Chapter 9 Speedrun Complete a Speedrun of Chapter 9 below the target time.

Maximum Firepower Have all weapons at 200% power simultaneously

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

Champions of the Opéra House Complete all Special Portals in Country of the Musketeers as both Sora and Riku.

Champions of the Harmonic Score Complete all Special Portals in Symphony of Sorcery as both Sora and Riku.

Test Subjects Use sheep as test subjects in 6 levels

Wander and the Forbidden Clear the game in hard difficulty