The Burning Question
Obtain a key by completing the fifth Riddler trial.
12/14/2015
2:27:30 PM
Rare 26.8%
Riddler on the Rampage
Obtain a key by completing the fourth Riddler trial.
12/14/2015
2:15:14 PM
Rare 28.5%
The Cat and the Bat
Obtain a key by completing the third Riddler trial.
12/14/2015
10:55:44 AM
Rare 30.7%
I've Got Balls of Snow
Complete "Duke: Nuclear Winter" on any difficulty or in co-op.
12/13/2015
11:09:20 AM
Ultra Rare 3.9%
The Patriot Act
Complete "Duke It Out In D.C." on any difficulty or in co-op.
12/11/2015
12:13:08 PM
Ultra Rare 4.1%
Pieces of the Puzzle
Obtain a key by completing the second Riddler trial.
12/10/2015
8:12:22 AM
Rare 32.4%