Batman: Arkham Dual Pack includes Batman: Arkham Asylum Game of the Year Edition and Batman: Arkham City Game of the Year Edition. Batman: Arkham Asylum GOTY includes 4 extra Challenge Maps: Scarecrow Nightmare, Crime Alley, Totally Insane, and Nocturnal Hunter. Batman: Arkham City GOTY includes : - Harley Quinn's Revenge - Catwoman Pack - Robin Bundle Pack - Nightwing Bundle Pack - Arkham City Skins Pack - Challenge Map Pack