MSN has debuted a new trailer for Batman: Arkham City that spotlights the Riddler and his role in the hotly anticipated sequel to the bestselling 2009 video game Arkham Asylum. Developer Rocksteady Studios is inviting fans to comb the video for riddles and post them on the game's official message board by Thursday.
Produced by Warner Bros. Interactive Entertainment and DC Entertainment, Arkham City is set inside the newly constructed fortified walls that have transformed part of Gotham’s slums into a sprawling maximum-security prison for the city’s gangsters, thugs and criminally insane.
Check out the trailer after the break. Arkham City will be released Oct. 18 in North America and Oct. 21 in Europe.