Editing Gigantor (section)

==Sequels and spin-offs==
The 1980–81 ''New Iron Man #28'' (''Shin Tetsujin-nijuhachi-go'') series was created with 51 episodes based on a modernized take upon the original concept art. In 1993, Ladd and the TMS animation studio converted the series into ''[[The New Adventures of Gigantor]]'' and broadcast it on America's [[Syfy|Sci-Fi Channel]] from September 9, 1993, to June 30, 1997.

During this time, the series was shown on Spanish television under the name ''Iron-Man 28''.

There was also a sequel series, ''[[Tetsujin 28 FX]]'', about the son of the original controller operating a new robot (with his father and the original FX-less No. 28 appearing from time to time to help), which ran in Japan in 1992.

In 2004, a new ''[[Tetsujin 28-go (2004 TV Series)|Tetsujin 28-go]]'' series was made which returned to the original story established by the manga and original anime series. This version was released in the United States on DVD under the original Japanese title of ''Tetsujin 28''. Unlike ''Gigantor'', however, the English translation of this series is closer to the original Japanese version, with all Japanese names retained.

A number of characters and robots from the ''Tetsujin 28'' series appeared (albeit with altered backgrounds) in ''[[Giant Robo: The Animation]]'', an [[Original video animation|OAV]] series that drew on Mitsuteru Yokoyama's entire body of work. In one of the ''Giant Robo'' parodic spin-off OAVs, "Mighty GinRei" (''Tetsuwan GinRei''), a version of the original Tetsujin appears under the name "Jintetsu".

A comic version of ''Gigantor'' ran in the ''Triple Action'' anthology series from [[Eternity Comics]] from issues #1–4.

An American-made ''Gigantor'' comic book series was released in 2000 by [[Antarctic Press]]. The comic lasted for 12 issues and was later collected in 2005 in [[Trade paperback (comics)|trade paperback]] form. The comic used elements from the anime ''[[Giant Robo (OVA)|Giant Robo]]'' as well as [[Marvel Comics]] references, though the later issues became closer to the original animation.

The creators of ''Gigantor'' have unveiled plans for another updated design, a "Gigantor for the New Millennium." This newest form of the giant robot is called '''G3''' and differs from past designs. The new Gigantor is a meld of [[robot]] and [[cyborg]]. According to the main site: "Driven by a complex neuro-system of DNA-impregnated neurochips, Gigantor G3 is a living Cybot!".<ref>{{cite web|title=Gigantor G3|url=http://www.gigantor.com|work=Author Unknown|publisher=Fred Ladd's Official Gigantor and more...|access-date=May 27, 2012|author=Chuck Scholt|archive-url=https://web.archive.org/web/20030205212849/http://www.gigantor.org/next.html|archive-date=February 5, 2003|year=2001|quote=Driven by a complex neuro-system, Gigantor G3 is a roborg!}}</ref>