Batman Unlimited: Monster Mayhem

Halloween is held in Gotham City. To celebrate this celebration, the scariest evil creatures such as Scarecrow, Clayface, Solomon, Grundy and Silver Banshee unite and break the law as a single force. Now Batman enters the scene to confront them. In this way, Green Arrow, Cyborg, Nightwing and Red Robin accompany Batman. But it seems that Batman's friends work for the Joker. The Joker has a computer virus that allows him to make all technology laugh like him and obey him...