Episodes
50 episodes · 1980
The year is 2050 and an energy crisis is Earth's main concern. A brilliant scientist in Trinity City develops the Trinity energy, a new source of energy powerful enough to supply the entire world. The alien empire of the Elda learn of this energy and plot to seize it by force. They attack Earth's space colony on Jupiter's moon of Io and occupy it. Meanwhile, the Trinity energy has been applied to three giant robots that combine to form God Sigma, a mighty robot led by martial artist-turned-pilot Dantou Shiya. With its mighty sword, it now stands between the peace of Earth and the power of the Elda forces. (Source: Wikipedia)
E01Angry Io Warrior
E02Trinity Base Surfaced
E03It's United towards Io
E04The Secret of Cosmo Zaurus
E05Jajama Rescue Operation
E06Small Intruder
E07Sortie on the Moon
E08Naughty Strategy
E09Survivors from Io
E10As a Doctor as a Father
E11Little Lover's Crisis
E12Discover the Enemy, Elder Star
E13Io Flowers Bloomed
E14Anger Showdown
E15Dangerous Gift
E16The Secret of Enemy General Teral
E17Giant Robot Buuer
E18Fearful Coalescence Scraps
E19Robot Cannot Start
E20Julie's Secret Savings
E21Break the Meteorite Siege
E22Without Returning to the Sky Thunder King
E23I saw a Phantom Fish
E24200 km to Io
E25Base Move Conmand
E26Cute Rebel
E272,300 Enemies
E28Overture to the New Batfle
E29Look at the White Flag of the Earth
E30Full of Danger
E31Io Latest Information
E32Duel Over the Moon
E33Hell Stadium
E34Tears of Enemy General Teral
E35Teral Execution Day
E36My Julie's Sister
E372,300 Years of Secrets
E38Departure to Io
E39Who is the Traitor
E40Deathly Mars
E41Birthday is Funeral Day
E42Martian Rebellion
E43Pick up Teral's Bone
E44Io Disappeared
E45Fight, Io's Earthlings
E46Declaration of Crazy Defeat
E47Dr. Kazami's Rebellion
E48Stand in the Land of Io
E49Tombstone Standing on Io
E50Departure for the Future