Rescue the guards and henchman from the Joker toxin in Decontamination

Complete a combo of 5 moves (any play mode)

Caused 10,000 damage with Guns.

Reached 20th level.

Made 50 Speech challenges.

Discovered 50 locations.

Completed Ring-a-Ding-Ding.

Completed They Went That-a-Way.

Fill every bonus note in a 'normal' length song

Play your first dance song

Completed Come Fly With Me.

Under Arrest - Switch the camera off in the surveillance room before saving Ethan