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

Stop the contract operative

Track down the serial killer

Stop all assaults in Arkham City

Rescue the third hostage from Riddler

Defeat ten enemies using hand-to-hand combat on the back of the convoy trucks

Defeat 30 enemies with the KAL 7

Find the Strange Relic

Complete one Cooperative Multiplayer game

Finish the game in Easy Mode

Defeat 30 enemies with the T-Bolt Sniper

Defeat 30 enemies with the Mk-NDI