Negadon (New Age of Monsters)

Negadon is a space monster from Planet Mars and the main antagonist of the Godzilla: New Age of Monsters two part season 4 episode, Monster from Mars.

Origin
Negadon is a creature from Mars and was believed to be created by the Martians.

History
As part of a terraforming project, a rocket carried a large chunk of rock from Mars, but there was an explosion as the rock lands straight in downtown Tokyo.