In Godzilla vs. Hedorah, Hedorah originates from the Dark Gas Nebula in the Orion constellation, and lands in Suruga Bay as a monstrous tadpole, increasing in size as it feeds on the pollutants contaminating the water. It proceeds to rampage throughout Japan, killing thousands and feeding on gas emissions and toxic waste. Godzilla confronts Hedorah, but discovers that his atomic ray has no effect on the creature. It is later discovered that Hedorah is vulnerable to temperatures high enough to dehydrate it, so the JSDF constructs a pair of gigantic electrodes on Mount Fuji. Hedorah fights Godzilla there, and is subsequently killed when Godzilla uses his atomic breath to power the electrodes, which cripple Hedorah and allow Godzilla to incinerate its remains.