Re: Dc Direct Arkham asylum/ Arkham city figures Discussion
You can only play them in the Riddler challenges rather than the main game. First, you go to the Riddler's Revenge section from the main menu, select whether you want to play the challenges individually or whether you want to play the campaign challenges, then select the character you want to play as. I think. You may have to choose the character before choosing the challenge type; I can't remember off the top of my head.