Read more about Godzilla Tower at: Wikipedia

Official Site: Toho

, is a 1972 Japanese kaiju film directed by Jun Fukuda, written by Shinichi Sekizawa, and produced by Tomoyuki Tanaka, with special effects by Teruyoshi Nakano. Distributed by Toho and produced under their effects-based subsidiary Toho-Eizo, it is the 12th film in the Godzilla franchise, and features the fictional monster characters Godzilla, Gigan, Anguirus, and King Ghidorah. The film stars Hiroshi Ishikawa, Yuriko Hishimi, Tomoko Umeda, and Minoru Takashima, alongside Haruo Nakajima as Godzilla, Kenpachiro Satsuma as Gigan, Koetsu Omiya as Anguirus, and Kanta Ina as King Ghidorah. It is the last film in which Godzilla was portrayed by Nakajima after playing the character since the original 1954 film; he subsequently retired from suit acting.

Godzilla vs. Gigan was released theatrically in Japan on March 12, 1972. It received a wide theatrical release in the United States in 1977 by Cinema Shares, under the title Godzilla on Monster Island.

Giant insectoid aliens resembling cockroaches from the dying planet "M Space Hunter Nebula" plot to colonize the Earth, their planet having become uninhabitable after another race on the planet polluted it, then died out from the effects of their own destruction. The aliens assume the forms of dead humans and work as the development staff of the peace-themed theme park, World Children's Land, the centerpiece of which is "Godzilla Tower". The Nebula M aliens plan to use the space monsters Gigan and King Ghidorah, guided by two "Action Signal Tapes", to wipe out human civilization.

Anguirus reports back to Monster Island, and Godzilla follows him back to Japan to save the Earth from Gigan and King Ghidorah. The aliens attempt to kill Godzilla with a lethal laser cannon hidden inside Godzilla Tower, but Gengo and his companions use the aliens' over-reliance on technology against them, forcing the invaders to unwittingly destroy themselves. After a lengthy fight, Godzilla and Anguirus force Gigan and King Ghidorah back into space and then Godzilla and Anguirus swim back to Monster Island, but not before Godzilla turns around and gives a roar of triumph, in thanks to his human friends.

Godzilla Tower has not been a contender in any CBUB matches.