ofi9000

Assassin View Find the Assassin's view.

Unexpected Guest Disguise yourself as Mr. Norfolk and assassinate Kalvin Ritter.

Cabin Fever Make it to the cabin in Regular or Hardcore difficulty.

Warrior Special Dodge the Warrior's attacks 20 times in one battle.

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

Fender Bender In Multiplayer, roadkill 5 enemies

Room for Reflection Hanging up

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

Lesser Evil Deal with Mr. Carella's indiscretion.

Zoo Keeper Collect all the masks

Doomed Travel to a forbidden location

Sorry I Made You Wait Save Jill from confinement using Chris.

Think Fast Kill 30 Necromorphs with Kinesis objects

The Desk Job You convinced Wayne Haas to let you into the morgue.

Pack Mentality Pull together

Wee wee wee They never made it to market

Batman Clear Chapter 2 using Nigel the Bat

Dirty Secrets Finish Chapter Three

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

Unfathomable Take a deep breath

Completed Grounded Mode Plus Completed Grounded Mode Plus

You'll Only Get Burned Completed "The Price of an F-Cup."

Veteran Complete the War Stories Under No Flag, Nordlys & Tirailleur on Hard

The Price of Life Completed chapter 5.

Springy Rescue Rescued the Bot in Twin-Frog Trouble.

Kling of the Clink Serve time in Toussaint.

First Step Complete your first mission in Jimmy's Vendetta.

Bomb squad Deliver 5 bombs in Obliteration

A Tableau Skipping stones at the beach

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

“The ‘I’ in Team” – Collector Found all collectable Roses in “The ‘I’ in Team”

A Legend for All Time Complete Jin's Journey in New Game+.

“A Shocking Turn of Events” - Rescuer Rescued the Little Sister in “A Shocking Turn of Events”

Self-Actualized Reach rank 20 in any role.

The Destination of Hatred Defeat Seymour Omnis

Wicked Weave Master Execute 20 Wicked Weave attacks while using Dodge Offset.

Pumping Rescue Rescued the Bot in High Inflation.

General of the Army Enter Prestige 1 in Multiplayer while playing online.

Guns For Show Use all guns at least once

Respite Dive back in

Office Space Do an elevator pitch

Pitcher Use all throwing weapons at least once

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

The Bull You defeated Lawrence Barrett, elite member of a secret mercenary hit squad.

Clockwork Shadows at noon

Tell Me a Story Completed 10 substories.

Child of the Shadows Finish a single chapter without alerting anyone

Silent But Deadly Kill 100 enemies with suppressed ammo

That Was Nice of You Save Rebecca from a Hunter.

Liberty City Minute You finished the story in less than 30 hours.