Ambassador Magma is a Japanese animated series that aired on Fuji TV
from 1966 to 1967. The series was the first animated television show to
appear in color. The show was also aired in the United States under the
title The Space Giants. The show follows an alien as he attempts to
conquer earth. When the people of earth refuse to surrender and call for
help, a giant robot named Ambassador Magma comes to the rescue to fight
the alien and try to defend earth.