Riddle me this, riddle me that, who’s afraid of the big black bat? Er, I mean...we certainly aren’t. New details emerged on the Arkham Asylum sequel Batman: Arkham City today, with one major highlight being the increased presence of the Riddler in the October game. Although relegated as mostly a side character in the original game, doling out such clues as tiny green trophies and question mark graffitti, new concept art and gameplay footage focuses prominently on the Riddler, prompting us to assume that the Edward Nigma character will have a larger role in the highly anticipated sequel. Be sure to check out the new trailer for Arkham City listed below. The game is currently scheduled for release on October 18th.