Japan is thrown into a panic after several ships are sunk near Odo Island. An expedition to the island led by Dr. Kyohei Yamane soon discover something far more devastating than imagined in the form of a 50 meter tall monster whom the natives call Gojira. Now the monster begins a rampage that threatens to destroy not only Japan, but the rest of the world as well.

A re-edited Italian-language dubbed version of the original Godzilla, using as a basis the U.S. version, "Godzilla, King of the Monsters!" (1956), plus WWII newsreel footage and clips from other science fiction films. The re-edited film was then colorized via a process called "Spectrorama 70" consisting of applying various colored gels to the black and white footage. The film's opening and ending also features new music composed by musicians Fabio Frizzi, Franco Bixio, and Vince Tempera (under the pseudonym Magnetic System).

An Okinawan prophecy that foretells the destruction of the Earth is seeming fulfilled when Godzilla emerges to return to his destructive roots. But not all is what it seems after Godzilla breaks his ally Anguirus's jaw. Matters are further complicated when a second Godzilla emerges, revealing the doppelgänger as a mechanical weapon.

When an invisible man is run down by a car it’s up to an eager young reporter and a strange clown to bring a dangerous gang to justice.

Two fishing scout pilots make a horrifying discovery when they encounter a second Godzilla alongside a new monster named Anguirus. Without the weapon that killed the original, authorities attempt to lure Godzilla away from the mainland. But Anguirus soon arrives and the two monsters make their way towards Osaka as Japan braces for tragedy.

A prehistoric monster called Gigantis emerges alongside another creature named Angurus.

Obscure French version of the original Godzilla. The film combines elements of the original Toho version and the American King of the Monsters! in a unique assemblage exclusive to the Francophone market. Released by Les Films du Verseau.