Biollante-King Ghidorah Hybrid

The Biollante-King Ghidorah Hybrid is a hybrid kaiju that first appeared in the Gigantis the Fire Monster manga.

Appearance
As it's name entails, the Biollante-King Ghidorah Hybrid is a fusion of Biollante and King Ghidorah. It is essentially just Biollante with the three Ghidorah heads.

Gigantis the Fire Monster
A group of Futurians propose a plan to the Humans to rid the world of Godzilla. Right when they gain the human's trust they reveal themselves to be disguised Xiliens who want to take over the world using King Ghidorah. Ghidorah begins to fly to Earth but is stopped by Biollante who is living in space debris. During the battle between them, Ghidorah strikes Biollante with his gravity beams. Biollante absorbs the essence of it's power and becomes a plant-like Ghidorah clone. Even with Biollante's enhancements, he is still defeated.