Noriyoshi Ohrai is a Japanese illustrator with a prolific 50-year career spanning multiple popular culture franchises, including Star Wars, Metal Gear, and, since 1984, the Godzilla pantheon. Although the daikaiju has undergone numerous transformations at the hands of different creative directors, no one has quite captured Godzilla's awesome terror quite like Ohrai did.
If you see a rose above, you're not wrong: Biollante's original name was Rose Biollante, and is made of one-third Godzilla genes, one-third human genes, and one-third rose plant genes.
Suspension of disbelief, people.
Despite looking like a traditional Chinese dragon (and thus, screaming allegory of Japan vs. China), King Ghidorah is portrayed as a heroic defender of Japan against Godzilla, and was inspired by the hydra of Greek mythology.
Rodan is taken from the word pteradon. The 'a' and the 'o' were switched for marketing purposes in English-speaking markets only, with his original Japanese name being Radon. Radon also happens to be the name of an element which is, surprise surprise, highly radioactive.
Quite possibly the most aptly named kaiju in the entire franchise.
Speaking of nuclear weapons, if Godzilla is the Fat Man, then Minilla must be Little Boy.