The energy of the sun was once collected in a tank from a machine created by the Bilar. The Bilar used the energy to mutate their leader. He became 100 meters tall and was now the horrible Megascalus! The giant mutant kaiju flew into space and headed for Earth. When he arrived, Godzilla, Mothra, Fire Rodan, and Anguirus tried to stop him. Megascalus almost killed the four, but Monsterzilla came and made him retreat.
Megascalus the 100 meter tall kaiju can breathe in air, water, and outer space, fire a gold and silver star ray from his mouth, and fly at mach 1.