Ambassador Magma (マグマ大使, Maguma Taishi) is the title and protagonist of a manga and tokusatsu TV series created by Osamu Tezuka.

He first warns the Murakami family (father Atsushi, mother Tomoko, and son Mamoru) of their invasion, and demonstrates his powers by transporting them to a prehistoric jungle and destroying a Giant Dinosaur (in reality, Agon, the title monster of a Godzilla-like TV series) before their very eyes.

In fact, true to his original manga appearance, in the series' pilot opening, Tetsuya Uozumi, the actor who played Magma, actually wore gold make-up on his face.

The show is most notable for its humanoid robot heroes who responded to crises by transforming into rockets to combat a wide variety of dinosaur-like space monsters, and faceless, ninja-like villains called Lugo men (人間モドキ ningen-modoki literally mock-human) whose corpses melted into oozing, blob-like slime whenever they were killed.

The stories were generally resolved in two to four episodes,[2] much like the BBC's Doctor Who, and a new monster would be found by Rodak to begin another two- to four-part struggle.

The human interest in the story was a family of three: a boy named Mikko, his mother Tomoko, and his journalist father Ito Mura.

The Mura family found themselves continually caught in the crossfire of monster attacks and harried by the Lugo men and Rodak's spies.

A major sub-plot in the series developed when Mikko's mother was kidnapped by the Lugo men and held in uncertain conditions for a number of episodes.

Originally intending to title it Monsters from Outer Space, the entire series was dubbed into English by Bernard H. Schulman's Lakeside Television Company and syndicated to a limited number of U.S. television stations in early September 1970 (such as WSNS-TV in Chicago and WTAF-TV in Philadelphia), under the title The Space Giants.