Production CompanyShirogumi4 titlesTitle (Original title) (Year)ReturnerRitana (2002)K-20: The Fiend with Twenty FacesK-20: Kaijin nijû mensô den (2008)Parasyte: Part 1Kiseijû: Part 1 (2014)Parasyte: Part 2Kiseijû: Part 2 (2015)