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Chimney Sweep There is only one way in

One-Armed Bandit Hammer the point home

Ring Ring Answer a ringing phone

Distress Flare Answer the call for help

Communication Breakdown Clear the airwaves

Gladiator Last man standing

Wrecking Ball Stop the unstoppable

Lost And Found Uncover the secret of Arkham City

Sandstorm We are legion

Hide And Seek A deadly game of hide and seek

IQ Test Solve the first riddle

Ghost Train Fight for survival

Arkham City Sirens Drop in on an old friend

Freefall Don't look down

Exit Stage Right All the world is a stage

Stop the Clock Time is running out

Conundrum Rescue the first hostage from Riddler

Broken Toys Destroy it all

Bargaining Chip Reunite the separated couple

Pick Pocket Steal the score of a lifetime

Dial Z For Murder Stop the phone booth killer

Mastermind Rescue the second hostage from Riddler

Forensic Expert Collect enough evidence to locate the gun for hire

Contract Terminated Stop the contract operative

Old-School Play a single-player game.

Catch Find someone to play remote Batarang catch with

Mystery Stalker Reveal the mystery watcher

Pay Your Respects A moment of remembrance

Serial Killer Track down the serial killer

AR Knight Complete all augmented reality training exercises

Puzzler Rescue the third hostage from Riddler

Gadget Attack Use 5 different Quickfire gadgets in one fight (any play mode)

Aggravated Assault Stop all assaults in Arkham City

Fully Loaded Collect all of Batman's gadgets and upgrades

Couch Potato Play an offline-only game. (2P +)

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

Upping your Arsenal Buy half of the weapons.

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

Intellectual Rescue the fourth hostage from Riddler

Keep the Meter Running Don't let the air taxi take damage in Luminopolis.

Family Jewels Retrieve your stolen goods

Vac-U Legend Kill 50 enemies with the Vac-U 4000.

For the Zombie Apocalypse Buy all of the weapons.

The Mad Plasmabomber Kill eight enemies with one shot.

Knockout Artist Kill three enemies with one attack using the Blitzer.

Flawless Freeflow Fighter 2.0 Complete one combat challenge without taking damage (any character)

Brainteaser Rescue the fifth hostage from Riddler

Winter Wonderland Escape the Polar Sea.

The Saviours of Magnus Defeat the Loki Master.

Zurkon the Legend Kill 100 enemies with Mr. Zurkon out.