TheOneTrueWalrus

Poker Night Kill Hoyt.

What a Trip Attend the final ceremony.

Fearless or Stupid Dive more than 60m.

Catch that Plane! Beat 'Chapter 16 - One Shot at This' in less than 12 minutes

World's Greatest Detective Spirit of Amadeus Arkham revealed

Outrun the Flames Beat 'Chapter 7 - Stay in the Light' in less than 9 minutes 30 seconds

Paranormal Bromance Do everything you can for Matt -- Quests, Loyalty Missions... everything.

Heartless Pyro Kill 50 enemies with the flamethrower.

That Sucked! Defeat the mutated Dimitrescu.

One Mean Mother Defeat Silitha

What Are You Doing? 2B's secret discovered 10 times.

Doggyland Pet 10 dogs

Sharing Is Caring Share each type of discovery with friends once.

Get the Ball Rolling Solve a Labyrinth.

My Horse is Faster Beat 'Chapter 20 - Caravan' in less than 15 minutes

Say Hi to the Internet Find the lost Hollywood star.

Sanity Check Collect all 8 Burner Phones

Industrial Accident In the Main Campaign, killed 20 enemies with a Sky-Hook Execution.

Into the Void Collect the Voidwalker

Ghost Train Fight for survival

Photographer Use Photo Mode.

IQ Test Solve the first riddle

Photobombed! Get photobombed in a selfie

Island Liberator Liberate all outposts.

Knucklehead Kill a total of thirty enemies using melee attacks.

Hairdresser Kill five enemies in rapid succession with a headshot.

The Full Kinzie Do everything you can for Kinzie -- Quests, Loyalty Missions... everything.

Baby, I Got Your Money Finish Operation: False Profits

Treasure Hunter Search 150 caskets
4/150

Counterintelligence Complete Chapter 2 in Ada's campaign.

The Two Shaundis Do everything you can for Shaundi -- Quests and... everything.

Memory to Spare Gather all the memory cards.

Poker Bully Win $1500 playing poker.

Rock Always Wins Fully distract 25 enemies with rocks.

On Her Saint's Secret Service Do everything you can for Asha -- Quests, Loyalty Missions... everything.

Darkness Looms Complete the final mission of the Missing Persons Investigation

Tonic Collector Collect or Invent 58 Tonics in the Physical, Engineering and Combat tracks

Knock You Out Do a stealth takedown on 30 enemies

Half Way Home Complete all open world gameplay in two districts of the Simulated city of Steelport.

Sea Legs Complete all naval contracts.

The Good Stuff Craft a special syringe.

Power Cycle Participate in 5 different City Games

Found Cohen's Room The player has entered Sander Cohen's personal quarters

Cosplay Kill an Enemy While Playing as an Alternate Character Costume Other Than Drake

Petrol Head Drive at least thirty different vehicles.

Freefall Don't look down

Arkham City Sirens Drop in on an old friend

Got No Strings Defeat Donna and Angie.

Fully Inked Earn every tattoo by learning all the skills.

Archeology 101 Gather a total of 60 relics.