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Combat Specialist Cold Darkness Challenge: Complete Cold Darkness without dying

Racing and Pacing Finish the game in five hours.

Not Bad for a Human Defeat the Alien Queen

Complete a set During a single round kill an Infected, Suicider, Ram, Butcher, Floater, Walker.

No Tumbler Fumbler Picked 25 locks.

No Teleporting Allowed As a Plant, Destroy a Teleporter in Gardens & Graveyards

Roops! Knock a Hybrid off the cliffs in Mt. Pleasant, PA

Silver Revenge Obtain 48 medals on the original Arkham City ranked maps (as Batman)

Twice Nightly Complete New Game Plus

Mother knows best Complete all Mother Hen secondary missions in the main game

Weapons of choice Find all off-hand weapons

A Worthy Opponent Defeat a level 9 CPU in a 1v1 battle

G.I. Blues Completed G.I. Blues.

Summer's End Complete Roxas's episode.

Bag lady Find all three hidden bags in one chapter

Eyes Of The Storm Obtain A Thousand Eyes skill, equip elite versions of Oathtaker's Bow and Sinchi Chiqa Battle Dress

One Armed Bandit Played 10 spins of Slots.

Raider Complete a Raid.

Completionist Completed all missions in Secret Armory

Retreat From Fire Cause the Alien to retreat using a molotov

Lore keeper Gather all collectibles

Clan War With your clan, face off against another clan in conflict.

Storyteller Collect all Story entries in Jiminy's Journal.

It's a trap! Score a combo of 75 or more while fighting up the stairs at the "Front Gates of EEEEEEEVIL!"

Blue Spaceship Find the Blue Spaceship that appears in battle!

Final Mix Master Clear game on Final Mix or a higher difficulty level.

Titan Mastery Fully upgrade a Titan Subclass.

Blast Corps Kill 30 enemies with explosion damage.

Keep your distance Find all ranged weapons

Sticky Bomb Like You! Put a Trip Mine on a live alien

Death of a Sales Rat Defeat General Rat.

Creature Comforts Obtain White Breath skill, equip Grip of Fear White Knuckle and Scales of Q Feathered Serpent

From the Jaws Save your Co-Op partner from an execution by killing the attacker.

Put Herself Together Complete the Mother Protector Challenge Tomb

Up and Comer Reached 20th level.

Master Mechanic Fully upgrade all weapons in Campaign Mode

Into the Den Complete story mission 6.

The Power of Three Completely upgrade three weapons.

One for the Books Complete the Game Records section of the Gummiphone.

The Astral Plane As an Engineer, Build 3 Teleporters in a session of Gardens & Graveyards

Meet Cypher's Edge Max out the Hit Meter 25 times

The Heavenly Goddess Perform a Level 3 Super with Nariko on 'Fearless'

The Final Countdown You showed millionaire Hugh Darrow that his logic was flawed.

Gold rush Complete five Gold Challenges

Cat Claw Defeated 10 enemies with one Spiraling Claw.

Shot in the Dark Kill 10 enemies while the lights are out in the subway in 'Eviction'.

Send me an angel Perform all Heroic Actions.

Counter-serum Chat with Dr. Hypatia aboard the Dreadful Wale

The Masterful Marksman Complete the entire main campaign on Marksman difficulty

A Just Cause Complete story mission 7.