Perhaps the most gloriously fucked-up movie I’ve ever seen. Jaw-to-floor, first frame to last.
Also: no idea if this is true, as it appears on the IMDB trivia page for the film, but, FWIW, I would watch the shit out of Obayashi’s GODZILLA pitch:
Shortly after this film's release, Obayashi proposed a story for what would have been the 16th Godzilla film. Had that film been made it would have used the same crew as this film with Godiego once again provided the music. This story told of a little girl named Momo who discovers the dead body of Godzilla. After being dissected, Godzilla is revealed to be a pregnant female alien named Rozan who died of diabetes. The brain of the dead Rozan instructs the humans that she must return with her unborn son to the planet of Godzilla and so her body is converted into a spaceship. The newborn child would be reunited with its father and they would have fought a female monster that shot fire from her breasts
So there’s that then.
Directed by Nobuhiko Obayashi from a script by Chiho Katsura. Starring Kimiko Ikegami, Miki Jinbo, Ai Matubara, Kumiko Oba, Mieko Sato, and Eriko Tanaka. Released 30 July 1977.