nuclear waste dump, located on an island in the
South Seas, is contaminating the nearby land. This is causing
abnormal mutations to affect local vegetation, animals
and insect life. The company responsible also starts
to clear-cut the land, turning the once lush terrain
into a barren wasteland. When a typhoon strikes
the island, a large landslide unearths a mammoth
egg that falls into the ocean and drifts off toward
Japan. Shortly afterwards, word of the large egg
approaching Japan starts flooding the media, and
several research teams are sent to the island in
the South Seas to investigate the giant egg's origin.
Among the research teams is a man by the name of
Murakami, who by chance stumbles upon a tiny woman
living on the island who isn't even a foot in height.
The small woman introduces herself as Mana and explains
that the giant egg belongs to Mothra; furthermore,
she states that his country will be in great danger
if the egg were to hatch near the main land. Murakami
believes her story and agrees to help spread the
word to avoid such a disaster.
Meanwhile in Japan, before Murakami has time to
warn the authorities, the egg hatches. A larval
Mothra emerges from the shell, along with another
unrecognizable creature. This second monster is
Gigamoth, a Mothra mutated beyond recognition as
a result of the local radiation found on the island
in the South Seas. After hatching, Gigamoth quickly
flees from the scene.
In hopes to prevent further disaster, Murakami
brings Mana to try and warn of the danger mankind
However, upon arriving Mana is struck with a surge
of psychic energy as the tiny woman realizes that
Godzilla is reacting to the nuclear fallout of Gigamoth.
Shortly afterwards, a report comes in that the mutated insect
has in fact engaged Godzilla near a nuclear power
plant in the Kanto area.
Mana, in an attempt to fend off Godzilla, teleports
herself inside Gigamoth's body, merging with the
monster in order to control it. Mana then commands
Gigamoth to emit an acidic mist that corrodes everything
in the area as well as severally burning Godzilla's
skin. Having the upper hand, Gigamoth webs up the
injured Godzilla before shoving the King of the Monsters
into the sea. The mutated Mothra then goes up to
the nuclear power plant and encases itself in a
cocoon, as to draw energy from the power plant while
it transforms. At this point Mana severs the link
between them, just as the Self Defense Force mobilizes
a new squad of masers, capable of firing rays that
freeze their target. The masers unleash shot after
shot at the cocoon, but the plan proves ineffective
as Gigamoth emerges from a sheath of frost in its
adult form. However, the creature was not given
sufficient time to complete its metamorphosis, and
as a result its wings have not fully matured, making
flight impossible. This set back does not stop the
creature from converging on Tokyo, though. Meanwhile,
in the sea outside of the power plant, Godzilla's
wounds have healed, as the creature breaks free
of the webbing that encased it.
Later, Godzilla, after emerging from the sea, confronts
Gigamoth for the second time in Atami. The King
of the Monsters fires his atomic ray at Gigamoth,
but the mutated insect is unfazed by the ray; in
fact, the creature's body sparks as the mutant Mothra absorbs
the nuclear energy and its wings fully mature. Gigamoth
then takes off into the sky, leaving behind Godzilla.
After witnessing the battle, Murakami realizes
that Gigamoth must have formed from an extreme exposure
to radiation. He believes that he could develop
an antibody bacteria that could separate
the radiation from the mutant bacteria in the cell
structure and neutralize Gigamoth's powers. Mana
interrupts Murakami's study, though, and merges
Murakami with Mothra, while simultaneously merging
herself with Gigamoth. This fails, however, as Mothra
refuses to respond to any of Murakami commands and
the two unmerge with the giant monsters. Murakami
goes back to work, finishing the antibody bacteria; however, he also comes to terms with himself and realizes that
he is falling in love with Mana.
Meanwhile, in the Fuji area, Gigamoth lays several
giant eggs of its own. Shortly afterwards, Godzilla
appears, attracted by the Gigamoth's radioactivity,
and prepares to engage the giant insect once more.
However, before the creatures can fight, a fleet
of jets appear overhead and unload a payload of
rockets containing Murakami's recently finished
antibody bacteria. Godzilla is
unfazed by the rockets, but Gigamoth is left weakened
and very vulnerable by the bacteria as Godzilla
converges on his weakened prey. Suddenly, Mothra
arrives in her imago form and having merged with Mana. The
giant moth lets loose a wave of poisonous pollen
that paralyzes Godzilla, but not before he lets
off a blast of his atomic ray that strikes Mothra
and sends the kaiju plummeting out of the sky. Mothra
spies the weakened Gigamoth below and the two siblings
make eye contact as Mothra shifts it course and
spears itself onto Gigamoth's horn. Blood from Mothra
begins to pour out of the creature, drenching Gigamoth
and its eggs, causing both to dissolve. It's Mana's
hope that Mothra's body contains a small amount
of mutant bacteria and that the two insects might
combine to form a creature that is immune to the
effects of Murakami's antibody bacteria. The plan
works, as the two are engulfed by a glowing light,
from which emerges Mothra's true form.
Mana, after severing her link with the giant moth,
appears before Murakami for the final time. Murakami
uses this opportunity to confess his love for her
and asks that she let them both join with Mothra.
Mana refuses, but comforts him by telling him he
will meet someone like her very soon. Mana then
merges with Mothra again and proceeds to cocoon
Godzilla. The giant insect then grabs the cocoon
and dives into the sea, taking Godzilla with it.
Shortly afterwards a search of the ocean is conducted but neither creature is found and both are
Months later, Murakami returns to the South Seas'
island where he first met Mana, hoping that by some
chance to find her again. While standing on the
beach, he sees a woman emerge from the ocean who looks
just like Mana. He approaches her to find out that
she is a research oceanographer. The two fall in
love as Mana's prediction proves true.
Mothra vs. Bagan
had long been canceled and Godzilla
vs. King Ghidorah (1991) was wrapping up
production, work began on Godzilla vs. Gigamoth,
sometimes referred to as Mothra vs. Gigamoth.
Kawakita and Minoru Yoshida wrote the early
script for the film and submitted it in 1991. Toho
wasn't satisfied with the treatment, though, and
the project was eventually scrapped. The company
tried other attempts, dead set on creating a film
pitting Godzilla and Mothra against each other.
The next draft, written by Wataru
Mimura, retitled the project Godzilla vs.
Mothra and was submitted that same year in 1991.
This too was scrapped as Godzilla
vs. Biollante (1989) writer Kazuki Omori
was brought in, creating Godzilla vs. Mothra
from his Mothra
vs. Bagan script before finally adding in
the Battra character in a later draft and ending
up with the final product: Godzilla
vs. Mothra (1992). In the end, this concept
contributed very little to the final movie beyond
Gigamoth being a similar idea to Battra.
In terms of the Godzilla vs. Gigamoth concept,
several questions do arise. The foremost being why
Mana didn't stop Murakami from completing his bacteria,
especially since she was willing to sacrifice Mothra
to stop the effect? It should also be mentioned
that the DAG-MB96, although not with that name of
course, were originally going to appear in this
project before later appearing in Godzilla
vs. Destoroyah (1995).
Note: No picture of Gigamoth exists beyond
concept art drawings. The above conception of him
was done through Toho Kingdom's interpretation of
the concept drawing.