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Time's Teller Defeat the Unknown.

Egg-stra Devastation! Complete the Egg-Stra XP challenge and then destroy a hive in the Devastation DLC package.

Karate Master Perform all the moves for the Karate fight style in a single fight

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

Chapter 6 Speedrun Complete a Speedrun of Chapter 6 below the target time.

Farewell to a Friend Put a friend out of their misery.

Superior Completion Skillz! Finish the game!
"Congratulations! Thanks for your hard work!"

Street Fighter Complete all Dragon's Teeth Assignments

Alright, Alright Survive until round 10 in Infection.

Midnight Party Play a game of Start the Party!™ (any game mode) between 12 o'clock and 1 o'clock at night

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

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

Untouchable Emissary Reach the end of the game without a game over.

Survivor Survive until Round 25 in Outbreak.

Fully Loaded Maximize all upgrades.

Peak Performer Win three games as the Mountaineer character

Sniped In career mode, compete for the same player with other teams, and win the negotiation war

A Bridge To Somewhere Extend the bridge in Awakening in Regular or Hardcore difficulty.

Lovely Challenge II Discover the Lord of the Gnomes and the Handyman costumes

Let Sleeping Chicks Lie Sshhh, don't disturb the chick!

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

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

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

Obtained the Holy Sword! Acquired the Holy Sword.

Butchered Barachiel Defeat Barachiel in the engine room of the celestial ship.

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

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

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

Lovely Challenge III Discover the Rocket Rocker and the Tumbling Stone costumes

Muay Thai Master Perform all the moves for the Muay Thai fight style in a single fight

Complete Episode 3 Complete all the chapters in Episode 3.

Fighters Megamix Take out an opponent with each character's All-Star Move.

Magical Sound Shower Race to every piece of music.

The Ultimate Sacrifice In Zetsubou No Shima, retrieve the Skull of Nan Sapwe.

Virgo B Solved the second Virgo riddle

Finale Unlocked the Ending Movie

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.

Strategic planning Complete a Youth Development objective in Career Mode

Disco Master Perform all the moves for the Disco fight style in a single fight

Gasmoxian Slug Beat all of Nitros Oxide's times in Time Trial Mode.

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

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

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

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

AMG Completionist Gain all stars in 'AMG'.

Extreme Survival Win 30 combats in survivor mode in a single run

The Bereaved Unlock Wendy

Complete part two Complete part two: Four Map Pieces

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