From the post:
Batman: The Animated Series – Gotham City Under Siege is a cooperative game where each player takes on the role of a powerful hero and must battle against the multitude of villains threatening Gotham City. Each hero has their own skills and abilities in defense of the ever increasing threats to corrupt and leave Gotham City in ruins. The players must work together as they move through the four Acts of the game, with each Act introducing new and more villainous threats to the city!
Designed by Richard Launius and Michael Guigliano, and Batman – The Animated Series: Gotham City Under Siege is a cooperative game for 1-5 players. Each player takes on the role of Batman, Robin, Batgirl, Commissioner Gordon or the Gotham City Police Department, along with the unlikely aid of Catwoman. They must defend the city over the course of four acts, with each act inspired by episodes from the first season of the show. Players will need to work together to find the right balance between completing challenging story cards, or taking down the villains and masterminds running rampant in the streets.