Obtain 72 medals on the original Arkham City campaigns (as Batman)

Rescue the third hostage from Riddler

Destroy all Harley Balloons

Stop all assaults in Arkham City

Defuse all bombs in 3 minutes or less

Stop the unstoppable

Obtain 36 medals on the original Arkham City campaigns (as Batman)

Complete all 40 of the Catwoman Riddler grid items

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

No crimefighter should be without this

Reveal the mystery watcher

Zip Kick 5 different thugs

Track down the serial killer

Stop the contract operative

Steal the score of a lifetime

Complete all augmented reality training exercises

Shield Bash 5 different thugs

Complete New Game Plus

Obtain 78 medals on the original Arkham City and Robin Bundle Pack maps (as Robin)

Clean up the Dry Docks

Use 5 different Quickfire gadgets in one fight as Robin in Harley Quinn's Revenge

Obtain 78 medals on the original Arkham City and Nightwing Bundle Pack maps (as Nightwing)

Snap Flash an unarmed thug, an armed thug, an environmental object and a Titan

Don't look down

A deadly game of hide and seek

Clear the airwaves

Obtain all 108 medals on the original Arkham City campaigns (as Catwoman)

Become the Bat

Drop in on an old friend

Obtain all 108 medals on the original Arkham City campaigns (as Batman)

Uncover the secret of Arkham City

Obtain all 72 medals on the original Arkham City maps (as Catwoman)

Destroy it all

We are legion

Stop the phone booth killer

There is only one way in

Complete one combat challenge without taking damage (any character)

Find a way into the secret base

Time is running out

Collect all of Batman's gadgets and upgrades

All the world is a stage

Hammer the point home

Obtain all 72 medals on the original Arkham City maps (as Batman)

The joke's on who?

Rescue all the hostages from Riddler

Fight for survival

Retrieve your stolen goods

Reunite the separated couple

Complete every challenge in Arkham City - Main Story, Side Missions, Upgrades, Collectables, New Game Plus and Riddlers Revenge (as Batman)

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

Last man standing

Rescue the first hostage from Riddler

Rescue the fifth hostage from Riddler

Rescue the second hostage from Riddler

Obtain 114 medals on the original Arkham City and Nightwing Bundle Pack campaigns (as Nightwing)

Have 12 murderous dates with Calendar Man

Rescue the fourth hostage from Riddler

Save the medical volunteers

Save the damsel, but is she in distress?

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

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

Obtain 114 medals on the original Arkham City and Robin Bundle Pack campaigns (as Robin)

A moment of remembrance

Solve the first riddle