Ambassador Magma

Goa, an alien conqueror, threatens to invade Earth, first warning the Murakami family - Atsushi, Tomoko, and Mamoru - of his intentions. To demonstrate his capabilities, he transports them to a prehistoric jungle, where he destroys a giant dinosaur in front of them. The Murakamis refuse to surrender, prompting Earth to create Magma, a massive, armored being with golden skin and antennae, and his partner Mol, who is also human-sized. As Magma befriends Atsushi and Mamoru, Earth creates a duplicate of Mamoru named Gam to help the Murakami family in their battles against Goa's monsters.