Collect all trophies.

Collect all the Sound Bite tokens.

Unlock all the Ability packs for the Character Customiser.

Stun an enemy using Commissioner Gordon's trusty weapon and finish them. (Single Player Only)

Reach Support Rank 2 in multiplayer

Reach Rank 1 with all 4 Infantry classes in multiplayer

As Catwoman, use the Stealth Takedown ability to attack Batman. (Single Player Only)

Complete 1 Service Assignment

Win gold in every arena in Justice League Mode.

Complete The Final Battle.

Help an enemy off a ledge in Wayne Industries.

Complete Gotham Metro.