''Six God Combination Godmars'' was a 64-episode anime series that aired in 1981 to 1982 in Japan, Hong Kong and Italy. Other loosely translated names are "Hexademon Symbiote Godmars", "Six God Union Godmars", "Six Gods United As One Being". It is loosely based on ''Mars'', a 1976 manga by none other than Mitsuteru Yokoyama, of ''Manga/SallyTheWitch'', ''Manga/GiantRobo'' and ''Anime/{{Gigantor}}'' fame.

In the year 1999, humanity begins to advance beyond the known Solar System. The small planet Gishin, led by the [[BigBad Emperor Zuul]], who aims to [[GalacticConqueror conquer the galaxy]], runs into conflict with Earth. He targets Earth for elimination and to do this, [[MosesInTheBulrushes he sends a male baby called Mars to live among humanity]]. Accompanying the baby is a [[HumongousMecha giant robot named Gaia]], which utilizes a new power source strong enough to [[ApocalypseHow destroy an entire planet]]. As planned, Mars is expected to grow up, where he will activate the bomb within Gaia to fulfill his mission of destroying the Earth. However, when Mars arrives on Earth, he is adopted into a Japanese family and given the name Takeru Myoujin. Seventeen years later, [[BecomingTheMask Takeru has grown up with a love for humanity and refuses to detonate the bomb as ordered by Zuul]]. However, if Takeru was to die, the bomb within Gaia would explode anyway...

Takeru possesses {{psychic powers}}, letting him [[MotionCaptureMecha pilot Gaia with his mind]]. He decides to join the Earth defense forces and becomes a member of the Crusher Squad (an elite space defense force), where he and his friends take a stand against the Gishin's attack. Oh, and there's also [[CainAndAbel the relationship of Takeru with his older brother Prince Marg, which fate would have it, pitted the two against each other in the war]].

Unknown to the Gishin, five other robots - Sphinx, Uranus, Titan, Shin and Ra - were created in secrecy alongside Gaia by Takeru's father and sent with Gaia to protect Takeru. Whenever Earth is in danger, Takeru is able to summon the five other robots to [[CombiningMecha combine with Gaia to form the giant robot Godmars]].

The God Mars robot is the basis for the WesternAnimation/MightyOrbots.

For viewers in the US, it's available at [[http://www.hulu.com/god-mars Hulu]].

!!The series has the following tropes:

* ActuallyADoombot: Takeru's first few battles with Emperor Zuul result in the latter being seemingly killed, only to be revealed as a clone of the real one.
* AscendToAHigherPlaneOfExistence: What [[spoiler: Takeru]] does at the end of the series. [[MindScrew Possibly]].
* BattleOfTheStillFrames: Every battle, which carries over to ''Super Robot Wars Z2''. The robots jump between poses instead of actually being animated. This changes in the second arc, with Godmars occasionally moving its arms a bit.
* BecomingTheMask: Having been raised in Earth, Takeru comes to love the planet and its people.
* BigBad: Emperor Zuul
* [[{{BFS}} Big Frigging]] CoolSword: The Mars Flash, which comes from the emblem on God Mars's belt-buckle thing.
** Not to mention it looks like the love child of a chainsaw and a machete, giving it a fairly well justified AbsurdlySharpBlade look.
* BoringInvincibleHero: When Godmars actually did fight, the battles were almost all brutal curbstomps with no sense of real tension because Godmars hardly ever took damage, and when it did said damage was minor (guess they weren't kidding about the "god" thing).
** Uniquely, Takeru himself was decidedly '''NOT''' invincible: the entire series is basically [[TraumaCongaLine just Zuul directly making him suffer]]. See TheChewToy.
* BraggingThemeTune: Which goes as far as calling God Mars the ''king of space''.
* ChestBlaster: God Fire, though it shoots from something that looks more like a belt buckle.
* ChewToy: Poor Takeru is a terrific example. In each episode Emperor Zuul sends out assassin after assassin to kill him and he's beaten, burned, frozen, zapped, electrocuted, asphyxiated to within a centimeter of his life, at which point the title robot arrives to save him. In the third and final arc of the 64 episode series, he's even stuck with a psionic device which drains part of his LifeForce if he attempts to use his powers. It doesn't get much worse than that. Oh and, he knows that, if he does die, the super-bomb in his guardian robot will blow up the planet. YEOWCH.
* CoolShip: [[SpacePirates The Frontier]]
* DragonWithAnAgenda: Wahl, Zuul's second-in-command, schemes to advance his own power right up until Zuul abandons him to die in battle against Takeru.
* EarnYourHappyEnding
* FantasticRacism: The conflict between plus and minus espers on Mamelo is all because one guy came to power with the agenda of exterminating the minus people.
* FinishingMove: '''FINAL GODMARS!''' Can pretty much be summed up as a powerful slash with the Mars Flash. A lot of the time, though, it is preceeded with Godmars using God Fire to internally damage the enemy mech (usually immobilizing them), which is how it is presented in [[VideoGame/SuperRobotWarsZ Super Robot Wars Z2]].
** In Saisei-hen, it gets an even more powerful FinishingMove in the form of [[http://www.youtube.com/watch?v=-GV40ph9enQ Super Final Godmars]].
-->'''Takeru''': Zuul! I'll show you everyone's anger! This is the final fight! I'll put everything on the line!\\
(God Mars turns golden while church bells ring in the background.)\\
'''Takeru''':MARS FLASH!\\
(God Mars summons the Mars Flash.)\\
'''Takeru''': FINAL GODMARS!\\
(God Mars performs a vertical slash and jams the Mars Flash into Zuul's gut.)
* GainaxEnding
* HijackedByGanon: [[spoiler: Second arc villain Gihron is advised and practically commanded at times by a mysterious voice that claims he is destined to rule the Galaxy. This voice sounds an awful lot like Zuul and the last episode of the arc is in fact titled "The Return of Zuul."]]
* HumanAliens: Whether from Gishin or Mamelo or wherever, all the aliens encountered in the series look perfectly human.
* InNameOnly: The only thing this anime has in common with the manga is that they both have a protagonist called mars, and they both share 6 giant mechas known as Gaia, Sphinx, Uranus, Titan, Shin and Ra, and that's about it.
* KickedUpstairs: Kenji is promoted at the beginning of the 2nd arc and takes command of Ceres space station, taking him away from Crusher Squad and most of the action.
* LeapOfFaith: Whenever Takeru enters Gaia on a planet he does this.
* MeaningfulName: Namida. Given the [[ParentalAbandonment parental situation]] he's been having before meeting Takeru, it's no wonder.
%%* MysteriousProtector: The Rose Knight
* NighInvulnerable: Godmars itself: even volcanic magma is shrugged off.
* PhysicalGod: Emperor Zuul. The only person to top him would soon come in ''VideoGame/SuperRobotWarsZ''.
** And now that ''Godmars'' is slated to appear in Z2...
* PragmaticAdaptation: There's very little relation between Godmars and the original Mars manga. The boy is named Takeru instead of Mars, the six gods combine with Gaia instead of being the enemy robots, the story isn't as hopelessly bleak, etc. The primary thing kept is that if Gaia is destroy or Mars/Takeru commands it, a bomb inside will go off and destroy the earth.
* SpellMyNameWithAnS: Emperor Zuul/Zul/Zule/Zure, depending on the source. Rose/Roze/Rosee and Cosmo Crasher/Crusher aren't as bad in comparison.
* SpiderSense: Due to his PsychicPowers, Takeru can detect incoming danger and identify any assassins disguised as humans.
* SpoilerTitle: Episodes sometimes have titles that are a bit too on the nose like [[spoiler: Akira's Girlfriend is a Female Soldier]] and [[spoiler: Marg Dies on Earth]].
%%* SuperRobot
* TelepathicSpacemen: Telepathy is a very common power among aliens, both Gishin and Marmelo.
* VictoriousChildhoodFriend: Marg's first love Lulu, from the OVA. [[spoiler: Sadly, he wasn't able to save her.]]