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Official Site: Toho

is a 1989 Japanese kaiju film written and directed by Kazuki Ōmori, with special effects by Koichi Kawakita. Distributed by Toho and produced under their subsidiary Toho Pictures, it is the 17th film in the Godzilla franchise, the second film in the franchise's Heisei period and a sequel to 1984's The Return of Godzilla. The film stars Kunihiko Mitamura, Yoshiko Tanaka, Masanobu Takashima, Megumi Odaka, Toru Minegishi, Yasuko Sawaguchi, Toshiyuki Nagashima, Yoshiko Kuga, Ryunosuke Kaneda and Kōji Takahashi. This was Odaka's first appearance in the Godzilla franchise as Miki Saegusa, and would reprise the role in every film for the remainder of the Heisei series.

In the film, corporations struggle for control over samples of Godzilla's cells, while the monster itself battles a creature born from a combination of Godzilla's cells, the cells of a plant, and the cells of a woman. The idea originated from a public story-writing contest, and set a trend common to all Heisei era movies, in which Godzilla faces off against opponents capable of metamorphosing into new, progressively more powerful forms.

Godzilla vs. Biollante was released theatrically in Japan on December 16, 1989. It received a direct-to-video release in the United States on November 25, 1992, through HBO Video. Although it received generally positive reviews, the film was a disappointment at the Japanese box office. In Japan, it was followed by Godzilla vs. King Ghidorah in 1991.

In the aftermath of Godzilla's attack on Tokyo and later imprisonment at Mount Mihara in 1985, the monster's cells are secretly delivered to the Saradia Institute of Technology and Science, where they are to be merged with genetically modified plants in the hope of transforming Saradia's deserts into fertile land and ending the country's economic dependence on oil wells. Dr. Genshiro Shiragami and his daughter, Erika, are enlisted to aid with the project, but a terrorist bombing destroys the institute's laboratory, ruining the cells and killing Erika.

Super-X2 has not been a contender in any CBUB matches.