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Turtle-tastic Collect all the Happy Turtle flyers.

Peek a Boo! Kill a Stalker with the Seeker Rifle while in Zoom Mode

Mechanical Menace Complete "Mechanical Menace"

License to Kill Complete Fatality Trainer

Save yourself Land on a block after falling more than 25 meters (The Lost Archive).

Spider Assassin Climb Hagia Sofia, from the ground to the pinnacle, in under 25 seconds.

I Want It All Komplete the Novice, Warrior, or Champion Klassic Towers with 10 different kharacters

Not Dead Yet Show MERCY 10 times

Puppet Master Play 25 AI Battle Simulator sets

Part of the Creed Take the induction leap of faith (The Lost Archive).

Necro Flambé Kill 50 enemies using the Flamethrower

Monster's dance Have a guard incapacitate 3 civilians while he's poisoned.

Tax Evasion Get your money back from a Templar tax collector.

Almost flying Parachute directly from the top of the Galata Tower to the golden horn.

Worth A Thousand Words Collect all of Ishak Pasha's memoir pages.

Brutal End Perform 25 BRUTALITIES

Total Disrespect Defeat an opponent as Bug-Vorah

Waste Management Purchase the old dock and collect all nuclear waste.

Assassin's Greed You completed all 9 assassin missions.

Holy Wisdom Complete the Hagia Sofia challenge level.

Epidemiologist Cold Darkness Challenge: Complete Cold Darkness

Would You Like Some Crumpets With That? Duck 10 times in a row during a match

Shock Therapy Impale an enemy with the Javelin Gun and use its Alt-Fire to shock 3 others (single player only)

Make them count DLC Vietnam: Kill a total of 25 enemies with airstrikes (Host only).

Multi-Disciplined Attain a gold medal in all applicable hobbies and pastimes.

It's a Trap! Kill 20 enemies with Detonator Mines in a deployed state

More Power Use 50 Konsumables

BUDDY!!! Send a Tower Challenge to a friend

Disco Create a sun ray with Kotal Kahn and perform a flip stance 5 times while in the ray

Jump they say Reach the Animus memo (The Lost Archive).

Tourist Send an opponent through all three Metropolis transitions in one fight

Pyromaniac Complete all Bomb Missions.

Go for the Limbs! Dismember 500 limbs from living enemies.

The Mentor Have seven trainees reach the rank of Master Assassin.

C-Section Knock down an enemy with Contact Beam Alt-Fire then kill it with Primary Fire before it stands up

Enter the Animus Enter the Animus simulation (The Lost Archive).

Order Fulfilled You completed all 10 Exotic Export orders.

Think Fast Kill 30 Necromorphs with Kinesis objects

Mosh Pit Have 10 guards poisoned at the same time.

Close Encounter Kill 10 alien Necromorphs.

Self-Actualized Reach rank 20 in any role.

A Friend Indeed Complete all Faction Creed Challenges from a single faction.

Skewered in Space Impale an enemy into a Decompression Window to cause it to blow out

Meet your maker Finish memory five (The Lost Archive).

Bronze Revenge Obtain 24 medals on the original Arkham City ranked maps (as Batman)

My Boom Stick Kill 6 enemies at once with Line Gun's Alt-Fire (single player only)

Retail Therapy You unlocked the special ability of buying guns from Little Jacob.

From Beyond the Stars Collect and return all spaceship parts.

Hara Kiri Kill yourself with Kotal Kahn for 1 round and win the match

A Mystery, Solved Solve the mystery of Leonora Johnson.