Proposed but never produced project
Godzilla v. The Smog Monster II
(Gojira tai Hedora II)
“Born from chaotic and turbulent conditions in Africa, Hedorah emerges again. As the Smog Monster lays siege to the continent, Godzilla arrives to once again do battle with the pollution spawned being.”
https://www.tohokingdom.com/cutting_room/godzilla_vs_hedorah_2.html
