Gain access to Arkham Mansion after it is locked down by the Joker

Defeat Bane

Survive the nightmare of the Scarecrow's fear gas

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)

Defeat 10 bosses with Artful Gambit relic on

Defeat The Watchmaker in a game of Wheels

Use the spa in Mirth with all 6 playable characters

Cook every recipe at least once

Find every single treasure

Defeat Croustalion