In 1991, after a planned Mothra film was cancelled and Godzilla vs. King Ghidorah was almost finished, the script for this film was written. However, the script did not satisfy Toho, so it was scrapped.

The plot was a nuclear waste dump on an island in the South Seas is causing giant mutations to the local wild life. A giant moth hatches and flies from the island. Gigamoth starts feeding off reactors and other radioactive sources. The ultimate radioactive meal arrives in the form of Godzilla, who suddenly finds himself as prey to a predator.

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