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 10 moves (any play mode)

Discovered Skag Gully

Completed 5 missions in the Arid Badlands

Kill Zeus

Completely upgrade all weapons

Acquire the Boreas Icestorm

Kill Cronos

Successfully entertain Aphrodite

Kill Hercules