Tesco is offering an exclusive Joker's Carnival Challenge Map to customers who pre-order Batman: Arkham City.
Here's the official description of the DLC: "Are you brave enough to step into the Joker's house of fun? Can you defeat armies of deranged killers in a fight to the finish, hosted by the clown prince of crime in a twisted game show where the only prize is survival?"
Tesco says those who pre-order the game will receive a code to unlock the content within two business days after their order ships.
Yesterday, Microsoft revealed a very cool-looking Batman: Arkham City themed Xbox 360.