HMS Hydra (A144) the first commission of HMS "Hydra". She was decommissioned and sold to the Indonesian Navy in 1986 and renamed KRI "Dewa Kembar" (Pennant Number 932); she was still in service in 2006. There have been eight ships of the name in the Royal Navy, named for the Hydra of Greek Mythology, a serpent with many heads (though nine is generally accepted as standard), the centre one of which was immortal. The monster was overcome and slain by Hercules. The ship's badge of HMS "Hydra" depicts the monster with seven heads. The ship's motto was "Ut Herculis Perseverantia" ("Like Hercules Persevere").
Ghidorah, the Three-Headed Monster Yoshio Tsuchiya was originally attached to play Malmess but scheduling conflicts prevented him from participating. After the success of previous films where monsters were partnered up such as "King Kong vs. Godzilla" and "Mothra vs. Godzilla", producer Tomoyuki Tanaka decided to develop a film which would feature Godzilla, Rodan and Mothra. The film also includes a new monster, King Ghidorah. Ghidorah's design owes much to Japanese mythology. In 1959, producer Tanaka developed a film that retold the legendary stories of Japan. These included the tale of "Yamata no Orochi", an eight-headed dragon. King Ghidorah is based on Tsuburaya's design for