Win a race without ever entering Critical Boost.

Make it to the party as Mash.

Killed 10 Helghast using Brutal Melee

Complete Campaign Mode On 'Normal'

Activate your Boost Gems 100 times.

Customize a Gem Unit.

Defeat Bane

Survive the nightmare of the Scarecrow's fear gas

Solve 5% 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)

Defeat 5 enemies using a single Medusa power-up.