It could very well be the shortest final fight in a Godzilla movie. King Ghidorah first appeared in 1964's Ghidorah, the Three-Headed Monster - arguably the first film in the Godzilla franchise to ...

Not just Godzilla, but King Ghidorah ... would be a good one to have them fight. He's creepy looking, but not exactly a great threat. Kamacuras would be a first-act villain, nothing more.