Complete one Cooperative Multiplayer game

Defeat 30 enemies in a row with your side arm

Defeat ten enemies with grenades by aiming while hanging

Defeat ten enemies in a row, alternating hand-to-hand combat and gunplay

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

Defeat 30 enemies with the SAS - 12

Defeat 30 enemies with the Mag 5

Defeat 50 enemies in a row without auto-reloading

20 times in a row, pick up ammo while rolling

Find the Strange Relic

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

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