Doctor Hiyari features in the 2008 Anpanman movie "Hiya Hiya Hiyariko to Bafu Bafu Baikinman". He partners with the primary antagonist Baikinman on a scheme to construct a ghost ship, forming a core part of the movie's conflict. Doctor Hiyari supplies technical or scientific assistance, enabling the vessel's creation as part of their shared plan. Their objective targets Rollpanna, one of the separated sisters central to the story, specifically aiming to corrupt her towards evil to exploit her abilities against Anpanman. Doctor Hiyari's documented involvement is confined to this specific film role as Baikinman's collaborator in the ghost ship plot and the attempted corruption of Rollpanna.