Godzilla vs Monster Zero:
Aliens come to Earth asking to use Godzilla and Rodan to help them save their world from King Ghidrah, but they are actually planning to use all three of them to conquer the Earth.
Godzilla vs Mechagodzilla:
Aliens intend to take over the Earth and just in case Godzilla plans to interfere they have built a mechanical version of him to defeat him. The people of Earth also call upon legendary King Seesar to assist Godzilla in the battle.
