Monster Zero The King Ghidorah.King Ghidora is a fictional monster, or kaiju, which first appeared in Ishirō Honda's 1964 film Ghidorah, the Three-Headed Monster. Although the name of the character is officially trademarked by Toho as King Ghidorah, the character was originally referred to as Ghidorah or Ghidrah in some English markets.The initial idea for Ghidorah, the Three-Headed Monster came from Tomoyuki Tanaka, who also created Godzilla. Tanaka's inspiration came from illustration of the Lernaean Hydra in a book about Greek Mythology, and Orochi of Japanese folklore. Tanaka was enamored with the idea of Godzilla fighting a multi-headed serpent, but considered seven or eight heads to be too excessive, and thus the number of heads was reduced to three