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Chimp on the Barbie In Ascension, kill a space monkey with a fire trap.

Burgertown Escort Service Rescue 1 survivor in Infection.

Bike Win 5 Festival races using a Bike

Tag, You're it! Use the Spotter Scope to tag 60 enemies or items in Open Combat Missions

Come On And ... Slam 10 zombies at once in Outbreak.

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

Reached Chapter 20 Fools. Every last one of you is a total fool. ...Even so, you're my friends. Let's go, our fifth friend is waiting for us.

Deliver This Complete the "Special Delivery" Special Ops mission on Veteran difficulty.

Super, Man! To battle is to win a fight with overwhelming strength! Show me you can do 100 Super Combos!

Tumbler Perform an impressive Barrel Roll

2-fer Using the EBR-14, kill 2 enemies with 1 bullet 5 times in 'Payload' without sounding the alarm

Elevator Out of Order Reach the roof in 'Highrise' under 45 seconds

True Completionist Cleared all areas on hard difficulty!

The third faction Rescue all the Buddies from their respective predicaments

Don't make me pull the trigger! Survive for 5 minutes in Demolition mode

Bird Brained Brainbug at least one penguin from each of the 7 penguin ranks, including Putzki in a single playthrough

Thanatophobia WITHOUT using the Architect, complete the game dying 15 times or less

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

Gravestone Kill 100 Zombies with a vehicle in a single deployment in MWZ

Flyswatter Destroy all helicopters in the "Vertigo" Special Ops mission.

Reached the Ending See you tomorrow!

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

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

Back in the Field Acquire the Major's keycard in 'Deep Cover' within 90 seconds without being detected

That Party was Ace Ace every Adventure level in The Journey Home.

Dirty Half-Dozen Complete the Cooperative game mode

Alright, Alright Survive until round 10 in Infection.

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

Survivor Survive until Round 25 in Outbreak.

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

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

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)

You Can Pet The Dog Pet a Hellhound in MWZ

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

Magical Sound Shower Race to every piece of music.

Heavy Ordinance Specialist Destroy 50 Aerial Scorestreaks with Launchers in Multiplayer

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

Fivepeat This is your real power, child? Show me it's not luck by winning 5 Ranked Matches in a row!

War Veteran Arcade: cleared any route with difficulty set on hard.

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

High Wire Act Kill 10 enemies while using a zipline

Sack the Postman Post all 6 invitations for the party.

Pit Master Discover and fight Hidden Kombatant 3 in Arcade Ladder

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

Escaped Awakening Escape Awakening for the first time in Regular or Hardcore difficulty.

Land Baron Get five islands on your DigiFarm.

Golden Acts Earn your GOLD SEGA License.

Revolutionary Fighter Find all 45 Signs