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Happy Camper Endurance Challenge: Survive for 5 days

Who Needs a Map? Endurance Challenge: Locate 5 crypts

Backstabber Kill 20 enemies with melée while they are idle

Come Here, Little Boy Taunt and defeat five plus angered enemies while taking no damage. Gaze of Despair may be equipped.

A Dinner for Two Endurance Co-op Challenge: Eat the meat of 3 wolves with your partner

Nothing Personal Takedown a friend in Multiplayer

Naughty Tentacles Destroy all the tentacles that drop down together during a single sequence in Chapter 9.

Blade Runner - 75 kills with the knife Kill 75 Helghast using the knife

Sword Master Perform 14 hits in one combo.

The Whole Story Collected all Audio Diaries and Voxophones in Burial at Sea - Episode 2.

Run the Gauntlet Complete "Desperate Escape" on Professional.

The Triple Lindy Complete 3 different high dives in the Foundry

It Takes Two to Tango Chain a 40-defeated combo in Team Slayers.

Iron Boots Drive over 5 spike strips with re-inflates equipped

Fully Loaded Purchase all Upgrades.

Helping Hands Revive a Co-op player 20 times

Bad Doggy Rescue Trip from the Dog in less than 36 seconds.

Sphinx' Riddle Complete all 40 of the Catwoman Riddler grid items

Still Tastes Good Endurance Challenge: Eat the meat of 5 wolves that were killed with poison damage

Unstoppable Arsenal Completely upgrade all weapons.

Army of One Win 15 matches in Slayers.

Master philanthropist Buy all the extra artwork

Babysitter - Revive 25 Buddies Revive your buddies a total of 25 times

“Worlds of Hurt” – Tough Guy Rescued the Little Sister in “Worlds of Hurt” using only plasmids, tonics, the wrench, and the research camera, on Medium or higher difficulty

Nature Retreat Endurance Challenge: Survive for 7 days

Bouncer Keep Chimeran forces from entering the Brewpub

T-Bone: Friends in Need Complete Act 1

Hide. Run. Survive. Complete the fifth mission without being killed by the Alien

Fight To The Last - Kill 1500 Helghast Killed 1500 Helghast

Electric Lawnmower Kill 30 enemies using an electrified Ripper blade.

Touch And It Will Hurt Counter 10 enemy attacks with the Moon of Mahaa-Kalaa equipped.

Decapathon Get 10 Headshot kills with the Wingstick

Martial artist Perform a melee hit from a wallrun

Archivalist Collect all journals

Brutality Bonus Destroy a Romanov's arm and leg before finishing it.

On the clock Beat the qualifier time on any Time Trial stretch

Cameraman Trigger every Speed Camera

Matador Kill the Rhino without getting hit by his Charge Attack.

Hole-in-One Destroy a Chicane with a hand grenade.

Completist - Destroy everything on the MAWLR Destroyed every destructible weapon on the MAWLR while on foot and on the Intruder

Corpse Wagon Detonate fallen Leeches to kill 25 enemies

The Caped Crusader Win with Batman using every special move and his Supermove

Ran out of fingers Find 11 hidden bags

Friendly Skies Defeated all waves in The OPS Zeal.

Campaign Bronze Obtain 36 medals on the original Arkham City campaigns (as Batman)

Not a Scratch on Her! I'm not taking any chances, this bus can't take much more damage. (Ch. 12)

Great Outdoors Endurance Challenge: Survive for 10 days

Full House Kill 5 enemies with each type of Agony Bolt.

Victory - Complete Campaign on Elite Completed every mission on Elite difficulty

Vacation Endurance Challenge: Escape the forest after surviving for 7 days