I recently found this strange Godzilla Manga that appears to be a compilation. The first is normal, it's a novelization of 1954 with added images. The second is GRA, but with anguirus breathing fire. By the third, things get strange which what appears to be Godzilla and Anguirus and some random ass monsters dicking around and fighting. I'm gonna try to upload more pics later of the manga, but let's see if this even works.
Here's some more:
If/when I return home in a few weeks I wouldn't mind scanning and translating it. A long process but it's pretty neat.