(After Ghidorah's death, Earth and it's are in peace. However, far in space something dangerous is being made. Something that humanity couldn't fathom. The Dark Mysterious Star Alliance, made of various alien species that attempted to conquer Earth have built a machine in Ghidorah's honor...)

In the blue sky, a ball of red energy suddenly forms. Building up in power before exploding. And what comes out is the Super Space Kaiju Robot, Mecha Ghidorah! Who has come to Earth to finish what his predecessor couldn't. Destroy Godzilla!

Mecha Ghidorah: "KAKAH-KIROOROO!!"