Survive the nightmare of the Scarecrow's fear gas

Solve 10% of riddler challenges

Escape from Intensive Treatment to the island surface

Rescue the guards and henchman from the Joker toxin in Decontamination

Complete a combo of 5 moves (any play mode)

Destroy all targets and structures while making your way up the river.

Escape the Past.

Retrieve the dossier and the defector from Hue City.

Kill 10 NVA with Dragon's Breath rounds.

Purchase a rare weapon from a gunsmith.

Sabotage the Soviet space program.

Escape Vorkuta.

Take down Castro with a headshot.