It's not King Ghidrah...it's Cat Ghidrah!
I know his official name is Ghidorah but Ghidrah just sounds more menacing.
Appropriate, cats see themselves as royalty, so it workds.
There's a final form of Ghidrah called Death Kaiser Ghidorah that has 4 legs instead of just 2.
Interesting that your name is Dragon Tail 777, because a dragon and the number 777 are in the book of revelations, AND I read somewhere that the imagery they used for Godzilla: King of the Monsters, related to Ghidrah, was inspired by the book of Revelations.