Find the Black Mask

Complete a Most Wanted entry

Who is the Joker?

Complete a predator encounter without ever being spotted in the Main Story

Shut down an entire Tower Network

Complete all Rampages.

Defeat the Biobliterator to complete the game

Complete the Qwarktastic Battle in Annihilation Nation

Unlock and purchase all powers.

Create a new mission using the UGC level editor.

Destroy the Blimp flying around Metropolis

Collect all Dead drops.