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Make a List, Check it Twice Complete all instances of Naughty and Nice.

Aggravated Assault Stop all assaults in Arkham City

He's Still on the Naughty List Deliver a present to Zinyak in 'The Santa Clawz'.

Laurence, the First Vicar Defeat the beast that was once Laurence, the First Vicar.

The Start of a Legacy Discover the truth about Darius's past.

Health Inspector Destroy all the green polyps inside Paul in 'Pop His Top'.

Fully Loaded Collect all of Batman's gadgets and upgrades

Practice Makes Perfect Enter Practice Mode

Team Play Kill an enemy with a headshot while they are being harassed by Senu (The Hidden Ones)

50x Combo Complete a combo of 50 moves (any play mode, any character)

Prison Break Free 20 Rebels (The Hidden Ones)

Predator and Prey Kill all of the Ancients in the Order of the Hunters in Makedonia.

Old Hunter's Essence Acquire all old hunter weapons.

Seeing Red Kill 10 enemies using the Fury of the Bloodline Ability.

The Greater Good Complete Main DLC Quest "The Greater Good" (The Hidden Ones)

Rigging the Race Destroy all the rival pony carts in 'At the Races'.

Lone Lion Kill the Makedonian lion.

Get that Kid to a Psychologist Find all the snowmen vignettes in the North Pole.

Surgical Strikes Assasinate Tacito, Ptahmose and Ampelius (The Hidden Ones)

Walls of the Ruler Complete the Walls-of-the-Ruler citadel (The Hidden Ones)

New Recruits Complete Side DLC Quests "Rise of Shaqilat" and "Shadows of the Scarab" (The Hidden Ones)

Blood of Leonidas Continue the bloodline.

It Has Begun Complete 1 S.T.A.R. Lab Mission

Freeflow Perfection Perform a perfect combo including all of Batman's combat moves (any play mode)

Predator Gold Achieve 24 medals on predator challenges

Ultimate Hot Potato Get 100 kills with the Grenade Launcher.

Hello Little Friend Get 250 kills with the Minigun.

Fire on Water Set 10 enemy ships on fire.

OMGWTFBBQ Get 100 kills with the Flamethrower.

Stormculler Kill all of the Ancients in the Order of the Storm in Achaia.

Bittersweet Beginnings Secure your bloodline

Breaking the Limit Land a Rush Assassinate that chains 4 times with the Pride of the Lion.

Rain of Arrows Kill 10 enemies using the Rapid Fire ability.

What Time is It? Perform a leap of faith from Arsinoe's sundial obelisk between 10 am and noon (The Hidden Ones)

Catch Me If You Can! Earn 5 Relics.

A World Without Christmas Complete the holiday text adventure.

Almost There Complete 50% of Story Mode

Cortex's Crazed Contest Earn the Key in Sunset Vista.

Zip it Off Perform 3 Assassinations from a zipline (The Hidden Ones)

For Love of Persia Kill all the Ancients in the Order of Dominion in Messenia

Gotham Base Jumper Jump off the tallest building in Arkham City and glide for 1 minute without touching the ground.

Kingmaker Acquire the Sword of Kings

Overachiever Get 3 stars on 1 S.T.A.R. Lab Mission

No More Rulers Kill all Overseers in Elysium.

Project Comet Craft an upgrade using Shards of a Star (The Curse of the Pharaohs)

Gathering Strength Collect all the Keeper's Insights in Episode 1.

Parry to Carry Heal by parrying 10 times with the Judgment of the Lion.

In the Face of the Gods Remember who you are.

Higher Power Reach level 55 (The Curse of the Pharaohs)

Blasphemer Destroy all of the Marble Maiden Tributes.