The first Getter Robo series chronologically. Published 15 years before the rest of the manga, Getter Robo pioneered the idea of the combining and transforming robot. 
Millions of years ago, the dinosaurs were driven deep underground due to the sudden arrival of "Getter Rays" on Earth. After evolving into sentient beings, they grew bitter and vengeful at the humans who replaced them on the surface and began plotting their attack on humanity. 
Fighting against them is Getter Robo, a machine built by Professor Saotome which uses the mysterious Getter Rays as its power source. Piloting it are three strong-willed young men - the violent martial artist Nagare Ryoma, the psychopathic yet highly intelligent revolutionary Jin Hayato, and the hot-blooded Judo master Tomoe Musashi. Each controls one of three specially designed combat jets which can be combined together in different forms to form three different kinds of giant robots: the flying, axe-wielding Getter-1, the quick, drill-wielding Getter-2, and the tough, tank-like Getter-3.

Years after the defeat of the Reptilian Empire, Getter Team has begun training on a new super robot, Neo Getter Robo. But a surprise attack from the Empire's revived leader forces them to recruit a street fighter named Go Ichimonji as Getter One's pilot. Faced with an enormously powerful foe, the new team's only hope for victory may lie in the resurrection of the lost weapon of humanity, Shin Getter Robo.
 
(Source: Anime News Network)

Sent to jail after being accused of murdering Getter Robo creator Dr. Saotome, Ryoma Nagare must once again team up with his former comrades and pilot Getter Robo when Saotome returns from the dead and threatens humanity by unleashing his greatest creation - the Shin Dragon. Their efforts, however, are in vain as they fail to stop a nuclear warhead from hitting Shin Dragon, resulting in a massive Getter Ray contamination that wipes out 99% of the planet's population. Thirteen years after this great catastrophe, mankind continues to fight for survival against the Invaders. Out of the remains of the nuclear blast comes Shin Getter, piloted by the artificial human Go. With remnants of the Japanese military by his side, Go - along with co-pilots Kei and Gai - must use Shin Getter to exterminate the Invaders once and for all.
 
(Source: Anime News Network)

From deep within the Earth's surface, the Dinosaur Kingdom make their move to wipe out mankind and conquer the planet with their mechanical dinosaurs. After a prototype Getter Robo is shot down by a mechanical dinosaur, the Saotome Research Institute decides to use the real Getter Robo, which is combat-capable. Due to a lack of pilots in the institute, Ryo Nagare goes to his college to persuade martial artist Musashi Tomoe and outcast Hayato Jin to join him and pilot the Getter Machines to combat the new threat and protect mankind.
 
(Source: Anime News Network)

After Emperor Gore and the Reptilian empire is defeated, a new enemy, Emperor Burai and his Hyakki empire rises and threatens to take over Earth. Ryoma, Hayato, and newcomer Benkei pilot the new Getter Robo G to save Earth.
 
(Source: Anime News Network)

A mysterious monster called the High Beast, has taken control of the regions of Eurasia and Africa. Japan has cut off from the mainland to protect itself from this threat. The daughter of a legendary mahjong player discovers that monsters attack whenever a mahjong piece is hit across the board. This allows humans to be separated from the battle and for mahjong players to effectively combat the monsters with robots controlled through mahjong moves.


Humanity is under attack by demonic creatures called Oni. Unable to fight back by any other means, the scientist Dr. Saotome creates a series of giant robots that harness the mysterious power of Getter Rays, giving them the strength necessary to fight the Oni. The strongest of these is Getter Robo, and Saotome must enlist three very different men to pilot it - martial artist Ryoma Nagare, criminal leader Hayato Jin, and monk Benkei Musashibou. Together, the Getter Team fights to end the Oni menace forever.
 
(Source: Anime News Network)

Go Nagai's classic sexy heroine Cutey Honey has returned!

Devilman vs Getter Robo is a crossover manga between Devilman and Getter Robo. Its Devilman characters combine elements from their TV-series and manga counterparts.

Dino Getter is a manga series by Kazumi Hoshi for the 40th anniversary of Getter Robo. It introduces the Dino Getter Robo in an original eight chapter story about a battle between the Dinosaur Empire.

They call them Devolved—strange alien creatures that attack our world through distortions in space. Tragedy has always haunted Ryouma, and when his high school comes under alien attack, he figures it's just the latest chapter in a long history of suffering. Yet beneath the monster's deadly glare, a strange professor steps forth with an offer of power. Ryouma is touched by the Getter Rays, a mysterious cosmic force that grants the power to pilot the ultimate fighting machine: Getter Robo!
 
(Source: Seven Seas Entertainment)
 
Note: This is a full remake of the original Getter Robo series and the ​sequel to the Getter Robo Saga. Includes a prologue that was published in the October 2015 issue of Bessatsu Shounen Champion but not present in the volume release.

A compilation of the long-running Getter Robo series into one continuous story. Includes several new pages and chapters as well as revisions to old material and a newer, more conclusive ending to Getter Robo &#256;&#7717;. 
Getter Robo (1974) 
Getter Robo G (1975) 
Getter Robo Go (1991) 
Shin Getter Robo (1997) 
Getter Robo &#256;&#7717; (2001)

This series continues the Ken Ishikawa continuity of Getter manga, temporally taking place after Getter Robo Go and before Getter &#256;&#7717;. The series features an older Hayato leading a new team of Getter Pilots (and a new Getter) as they defend the earth from large plant-like monsters. 
(Source: Wikipedia)
 
Note: Includes an extra chapter that was published on the last volume.

A manga adaptation of the of Toei TV series, published in Bessatsu TV Land in the 1973 March and April issues.
 
(Source: Wikipedia Japan)

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