The Story Behind Tetsujin 28’s Kaiyodo Glico Diorama

Tetsujin 28 Black-and-White Diorama — Time Slip Glico x Kaiyodo

Tetsujin 28 and the Origins of the Giant Robot

Tetsujin 28 — known internationally as Gigantor — was created by manga artist Yokoyama Mitsuteru and serialized in the boys’ magazine Shonen from 1956 to 1966. The premise was unlike anything that had come before: a colossal robot developed by the Japanese military near the end of World War II, later controlled by a young boy named Shotaro Kaneda using a remote device. That detail — an ordinary child wielding an enormous weapon — was genuinely novel, and the series drew real tension from the question of who controls the machine and to what end, making the robot a tool as easily used for evil as for good.

The manga became a black-and-white television anime in 1963, broadcast on Fuji TV. Between 1964 and 1966, a localized English version titled Gigantor aired in the United States, making it one of the earliest Japanese animated series to reach American screens. Tetsujin 28 predates Mazinger Z and Getter Robo by nearly a decade — it sits at the very start of the giant robot genre that would eventually produce Mobile Suit Gundam and many others, and is regularly cited as a foundational influence on the robots and mecha that followed.

How the Time Slip Glico Line Reinvented the Food Toy

Shokugan — candy toys — refers to the Japanese tradition of including miniature figures inside snack packaging, a practice that Ezaki Glico helped establish across generations with their iconic packaged prizes. By the late 1990s and early 2000s, that tradition had been transformed by partnerships with serious figure manufacturers. When Glico collaborated with Kaiyodo — a figure maker internationally recognized for precision sculpting — the result was the Time Slip Glico line: meticulously crafted dioramas sold alongside candy, aimed at adult collectors with strong nostalgia for postwar Japanese culture.

The line ran roughly from 2001 to 2005, aligning with a broader wave of Showa-era appreciation in Japan. Releases covered anime, sports, everyday mid-century life, and film, all rendered as small, scene-complete dioramas. The Tetsujin 28 entry fits within the anime-themed releases. Its black-and-white finish — whites, grays, and blacks only — is not a limitation but a deliberate tribute to the 1963 broadcast. The robot’s rounded helmet, goggle eyes, and riveted torso; the antagonist figures in dark suits and hats; the cracked stone and rubble of the base: all of it is sculpted to evoke the “Raid Hideout” confrontation typical of the original series, with no color added to soften the era’s feel.

Why This Subject Resonates With Collectors

For fans outside Japan, two things converge here. Gigantor nostalgia is genuine and generational among American viewers who encountered the show in the 1960s, and “Tetsujin 28” immediately registers with collectors who follow anime history beyond the mainstream. Alongside that, Kaiyodo’s name carries weight among figure enthusiasts worldwide as a reliable marker of sculptural quality — the food toy format may be modest, but the craftsmanship behind Time Slip Glico pieces was taken seriously from the start.

The diorama format itself matters too. Rather than a single standing figure, this is a composed scene — robot, villains, and environment together — that communicates a specific narrative moment. For anyone interested in Showa-era anime, postwar Japanese pop culture, or the history of the giant robot as a storytelling device, the piece has clear identity and context. It documents a moment in Japanese media history using the vocabulary of that moment: black and white, smaller than life, and entirely committed to the source.