Episode 3: Ninja Batman x Poputepipikku Kindan no Collab CM

At Anime Japan 2018, Warner Bros. announced a collaboration between Ninja Batman and Poputepipikku. PVC figurines will be sold of the collaboration and a commercial was aired at the convention's booth, on television, and posted online--where Popuko and Pipimi dress as Batman and Joker respectively in order to promote the Ninja Batman's theatrical release.