Ogonkoff

Ripley, Signing Off Complete the game on any difficulty setting

Clipped Wings Defeat Archon

Stains of Heresy Complete Stains of Heresy

Tearing Time A New One Collect the Phasewalker

The Mad Queen Complete The Mad Queen

A True Engineer Construct one of each craftable item

Close Shave Complete all Under the Bridge and Knife Flight challenges.

Ambush Defeat 4 enemies within the duration of a single scare effect.

Self Defense Kill 10 humans

Parachute Climber Open the parachute and then land on foot 300 meters above the starting height.

With One Stone Hit 5 enemies at once with a Thrown-Forth projectile

Yellow Head Take a photo of Yellow Head

Part III Complete Complete Part III Of The Story

Voices of Sevastopol Collect 100 archive logs

It's Not Over Defeat Samael

Lord of the Black Stone Complete Lord of the Black Stone

Seeds of independence Liberate 500 slaves.

The Scene of the Crime Rescue Mad Hatter's first hostage.

Made it Out Alive Escape 1st time in Regular or Hardcore difficulty.

Diamond Geezertron Unlock the final skill in either skill tree

The Last Laugh The joke's on who?

The Root Of Corruption Open The Well Of Souls

Headcase Headshot a Demolition mech 20 times.

The Big Boss Defeat Absalom

A Stroll In The Demonic Park Complete the game on any difficulty setting

Into the Den Complete story mission 6.

Retreat From Fire Cause the Alien to retreat using a molotov

A Just Cause Complete story mission 7.

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

Head Games Rescue Mad Hatter's second hostage.

Career Criminal Attain 100% Game Completion.

Wicked Eyes and Wicked Hearts Make an impression on the Orlesian court.

Twice Nightly Complete New Game Plus

High Commander Complete 50 missions or operations in a single playthrough.

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

Untouchable Complete a Chapter without losing any health.

Juggler Kill 30 enemies while they're falling through the air.

Counterintuitive Perform 20 Counter Attacks.

Peerless Level up the Inquisition to rank 10.

In Storybook Endings Lock up Mad Hatter in GCPD.

Killing Frenzy Kill 20 enemies in 60 seconds.

Wyrmslayer Kill a high dragon in single-player mode.

Here Lies the Abyss Face your fears in the Fade.

Great Sage Equal of Heaven Complete all chapters on Hard.

His Own Medicine Disarm the Gouverneur and kill him with the branding iron.

Solid Gold, Baby! Earn any 70 Gold Medals on Missions, Strangers and Freaks.

You Push A Man Too Far Don't Shoot The Dis-Armed Man

It's Alive! Complete Dead City in the Campaign

Foreign Policy Complete mission contract 'Diplomatic Incident'

Debunked Complete Shrouded Bunker in the Campaign