Uncover the secret of Arkham City

Last man standing

Clear the airwaves

Drop in on an old friend

There is only one way in

Answer a ringing phone

Finish the game in Hard Mode

Finish the game in Easy Mode

Find 40 treasures

Defeat 30 enemies with the T-Bolt Sniper

Defeat 20 enemies by blind-firing while in cover (without aiming with L1/R1)

Defeat 30 enemies with the KAL 7

Defeat 20 enemies by shooting from the hip (without aiming with L1/R1)