Astroganger (アストロガンガー) is a Japanese super robot anime series created by Knack Productions. It consisted of 26 episodes and originally aired from October 4, 1972, to March 28, 1973.
Plot
An alien woman named Maya crash-lands on Earth. Her homeworld was destroyed by the Blasters, a cruel alien race who steals the natural resources from other planets. She falls in love with a human scientist and gives birth to a hybrid boy named Kantaro. When the Blasters invade the Earth, Kantaro must defeat them by fighting with Astroganger, a sentient robot made from living metal.
Production
This was the first super robot show in color, beating Mazinger Z to the air by two months.
Astroganger is very different from most of the robots of the genre. He is a sentient being who can talk, think, and feel pain. He has no special abilities and must rely on his strength to win battles.[1]