ZO escapes from the monster, and Mochizuki sacrifices himself to destroy the pool (the Neo-Lifeform's life source). The complex self-destructs as ZO and Hiroshi escape. Leaving the boy with Seikichi, Masaru leaves for parts unknown. Characters : The hero of the story, Masaru was Doctor Mochizuki's assistant until Mochizuki experiments on him, turning Masaru into the grasshopper-themed cyborg Kamen Rider ZO. Although he hates Mochizuki, Masaru eventually forgives him. : A young boy who lives with his grandfather, Seikichi, and is targeted by the Neonoid. Hiroshi longs to be with his father, who went missing years ago. As a memento, Doctor Mochizuki gave Hiroshi a pocket watch which plays music. Hiroshi is afraid of ZO at first, but eventually calls him "Brother". : A mad scientist who turns Masaru into ZO and creates the Neo-Lifeform. Although he dreams of creating a "perfect lifeform", it turns on him. Mochizuki uses grasshoppers to telepathically contact ZO. : A pool of living fluid which relies on its container for survival. It assumes the appearance of a deformed, egotistical, unemotional boy resembling Hiroshi. It becomes the grotesque, Kamen Rider-like to find Hiroshi and force Dr. Mochizuki to complete its evolution into a perfect life form and destroy the human race and its imperfections. Doras can regenerate after injury, absorbing materials to upgrade itself. When Doras absorbs ZO, it becomes . : A monster created by Doras, she is a four-legged spider who captures Hiroshi. : Another monster created by Doras, he is a black bat-like entity which can disguise itself as a human. As Mochizuki, it lures Hiroshi to its master's hideout. Cast : : : : : : : : : Production The idea for the project was conceived due to the strong sales of Shin Kamen Rider: Prologue, which was released through direct-to-video. Many proposals were planned such as sequel to Shin, or a feature film featuring Ichigo to Black RX. However, it was decided that it would be a standalone film. Shigeru Okada, then president of Toei Video, Ryonori Watanabe, and Makoto Yamashina, then president of Bandai Visual, proposed a joint project on the condition that it would push box office sales through a multi-million yen campaign. Okada was one of the first to green-light the film. He then collaborated with Yamashina and planned to release the upcoming film by next May. Bandai would refresh their brands to focus on making