Godzilla, Mothra & King Ghidorah: Giant Monsters All-Out Attack (2004)
Did you ever look at Godzilla movies and think "This has potential, but the metaphor's a bit too subtle"?
Me neither, but here we are: A movie where Godzilla is possessed by the ghosts of those who died in the Pacific War.
[this space reserved for the "I've met writers who use subtext, and they're all cowards" gif]
Godzilla flipped into the villain-monster role is a neat twist on an old formula. The movie has surprisingly well-done human characters despite the plot, and merges CGI and practical effects in a way that ages far, far better than other Godzilla movies of the era (Final Wars..).
The underwater fight is impressive, as is Mothra swapping from CGI to puppetry as shots require it.
re: Godzilla, Mothra & King Ghidorah: Giant Monsters All-Out Attack (2004)
To be fair "ghosts are just electricity that can be stored in rocks" is also the plot of Ghost In The Shell, Altered Carbon and about half the cyberpunk genre, generally speaking
Monster Movie Metaphors, Rebirth Of Mothra 2
This isn't even the weirdest use of metaphor in a Toho film.
I am still not sure what they were going for with Rebirth of Mothra 2, where Son Of Mothra parts the sea to let his human friends escape destruction.
..Many confusing decisions were made in that movie.