mass sales while Toei collaborated to develop Kamen Rider World as part of the promotions. There were restrictions on producing ZO from within the company, but Okada pulled through and decided to produce the film over a year before its eventual release. In March 1992, the decision to produce the film had begun and an multichannel marketing was deployed for potential box-office sales, such as film, television events, and merchandise sales. It was planned as a standalone release theatrically because it was an anniversary film. However, due to potential box-office risks, executives created the Toei Super Hero Fair and was shown alongside the theatrical versions of Gosei Sentai Dairanger and Tokusou Robo Janperson. For that reason, ZO's runtime was shortened at 48 minutes than the envisioned 90, causing the film's development to be rushed. It was director Keita Amemiya's idea to shortened the length of the film as if it were a Makunouchi bento. Production of the film had begun on November 19, 1992. The film had finished principal photography on December 20, 1992, and was officially completed on February 3, 1993. Songs and , composed by Eiji Kawamura with lyrics by Akira Ōtsu, were sung by the Japanese group infix. ZO vs. J The S.I.C. Hero Saga story, published in Monthly Hobby Japan magazine from February to May 2005, contained a crossover with Kamen Rider J entitled . In the story, the Neo Organism Doras obtains the Fog Mother's powers. It introduces the characters , and . Adaptations Kazuhiko Shimamoto drew a manga adaptation of the film. It takes some liberties with the plot, expanding the role of several characters, a different characterization of ZO and more-graphic violence. The manga includes short stories about Kamen Rider Black and Kamen Rider creator Shotaro Ishinomori. The film was adapted into the video game The Masked Rider: Kamen Rider ZO and released in North America for the Sega CD, despite the film's never airing there. It also features extra footage of scenes not used on the final version of the original film. Saban Entertainment spliced together footage from Kamen Rider ZO for its Masked Rider TV show, with the monsters used in some episodes. Doras became Destructosphere, and was the first monster sent by series villain Count Dregon in the opening two-part episode "Escape From Edenoi". Kumo Woman became Arachnida, appearing in the episode "Stranger from The North" and with a monster