Takes place after the final defeat of the Dinosaur Empire and the death of Musashi Tomoe in the original Getter Robo series.
Dr. Saotome, creator of Getter Robo, fears that the peace the Getter Robo team has won will be short lived and that an even greater enemies would appear. Dr. Saotome's fears are justified when the militaristic Hyakki (or "Hundred demons") Empire appears, but Dr. Saotome is prepared with the creation of an even more powerful Getter Robo, Getter Robo G and a new Getter Robo base. Also with Musashi Tomoe dead, Dr. Saotome needs a third pilot which he finds in baseball player Benkei Kuruma.
If the original "Getter Robo" can be affectionately described as "very shit", then "Getter Robo G" can be described as "less shit".
[Note: "Getter Robo G" is largely similar to "Getter Robo", so I won't be repeating most of the things I've already said in the review for "Getter Robo", and will be focusing mostly on the differences instead.]
"Getter Robo G" is essentially more "Getter Robo" with some upgrades.
The most important upgrades are the robots. The new robots looks a bit cooler than the original, for example, Getter-1 had two "horns" sticking out of its head in "Getter Robo", and now it has about five. The
robots also have proper, cooler names now: "Getter-1" became "Getter Dragon", "Getter-2" became "Getter Liger" (ok this sounds more crap than cool, I admit), and "Getter-3" became "Getter Poseidon".
The robots also have a few more moves to play with, so the pilots no longer have to pretend the likes of "Getter Jump" and "Getter Kick" are special moves. Along with the new moves came some lame new names - all the robot attacks are in English, or rather, Engrish, and when the series was adapted into the English version "Force Five: Starvengers", a lot of the more stupid sounding attacks had been renamed. Here, however, you can witness the original names in all their glory. I had a good chuckle at the fact that what I knew to be "Shoulder Missiles" in "Starvengers" was originally named "Strong Missiles" in "Getter Robo G" (in the prequel "Getter Robo" I don't even remember that attack having a name). Getter Dragon also gained a powerful ultimate attack which was given the unfortunate name of "Shine Spark".
There's also a new pilot to replace Musashi. His name is Benkei, which literally translates to something like "strong man". Not sure whether it's due to nostalgia, but I think I slightly prefer him over Musashi. Benkei's personality seems a bit more interesting than Musashi, who was mostly incompetent and only there for comic relief.
Last but not least, there are new enemies! The dino empire is replaced by the Hundred Demon Empire. The main representative of the demon empire is a jackboots-wearing general with a small mustache who bears an uncanny resemblance to a historical figure. His name is "Hidler". No prizes for guessing who he resembles.
Despite all the upgrades, I still found "Getter Robo G" tough going. If anything, the better production means that it's not quite as entertainingly bad. It's also a less groundbreaking work, so while it may be less shit than "Getter Robo", I can find even less reason to recommend this unless you're into super robots.