The spaceship AAB Gamma is dispatched from Japan to land on Mars and investigate reports of UFOs in the area. When the Gamma nears the red planet, it finds a mysterious UFO that begins to coat the Gamma with unusual spores. One of these spores is taken back to Earth, but begins to develop.
The spore grows into a giant lizard/chicken-like alien monster called Guilala that begins a rampage across Tokyo. It spits fireballs, feeds on nuclear fuel, turns into a giant energy ball when it wants to fly, and destroys airplanes and tanks along its rampage. The monster is finally defeated by jets dropping bombs, coating Guilala in a fictional substance known as "Guilalalium" that causes it to shrink back down to spore size. They promptly launch the spore back into space, where it will supposedly circle the sun in an endless orbit.
Staff role on the left, staff member's name on the right.
Directed by Kazui Nihonmatsu
Written by Moriyoshi Ishida, Eibi Motomochi, and Kazui Nihonmatsu
Produced by Wataru Nakajima
Assistant Producing by Akihiko Shimada
Music by Taku Izumi
Cinematography by Shizuo Hirase and Chitora Ôkoshi
Edited by Yoshi Sugihara
Special Effects by Hiroshi Ikeda
Actor's name on the left, character played on the right.
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