Godzilla vs. The Devil

Godzilla vs. The Devil is a theory kaiju film (That of which is not confirmed).

Plot
"Godzilla would have battles some sea monsters, before battling the devil himself."

History
The film proposed by Tomoyuki Tanaka in 1978 as an attempt to revive him after the poor box office performance of 1975's Terror of Mechagodzilla that never got past the planning stages. It supposedly was known that Godzilla would have been pitted against several demon monsters and finally would have squared off against Satan himself in a climactic final battle.

The misconception stemmed from a misreading of an early script for a Godzilla film in the 1980's before The Return of Godzilla. Bagan was originally meant to be in the film, and the code-name for the script was Godzilla vs the Devil.