Big X

Lore & Background

During World War II, Dr. Asagumo is invited to Nazi Germany and asked by Hitler to collaborate on researching a new weapon called 'Big X.' Concerned about its potential effects, Dr. Asagumo deliberately delays progress, conspiring with his co-researcher Dr. Engel. Just before Germany's defeat, Dr. Asagumo is shot by the German army but implants a card containing the secret of Big X into his son, Shigeru. Later, an organization claiming alliance with the Nazis steals the card from Shigeru in Tokyo and completes the Big X project, which is revealed to be a drug that can expand the human body without limitation. Dr. Engel's grandson has joined the Nazi Alliance, and Shigeru's son Akira challenges them as they plot world conquest.

Reader's Guide

Big X holds significance as Tokyo Movie's first anime production, marking a milestone in the studio's history. The series is notable for its near-total loss—only a handful of episodes are known to survive, making it a subject of interest among anime preservationists. The story's Nazi exploitation themes and the concept of a body-expanding drug reflect Tezuka's willingness to tackle dark, speculative science fiction. The series has appeared in other media: Big X cameos in the 2004 Astro Boy: Omega Factor game, is parodied in the Oh My Goddess! manga, and its suit design influenced the Gamma 1 and Gamma 2 characters in Dragon Ball Super: Super Hero. Manga artist Katsuhiro Otomo counted it among his favorite Tezuka works. Despite no official English physical release, TMS uploaded a subtitled episode 1 to YouTube for its 60th anniversary, providing rare access.

Did You Know?

• The anime was produced by Mushi Production, not Tokyo Movie.
• All 59 episodes of Big X are known to exist and have been released on home video in Japan.
• Big X is a drug that can expand the human body without limitation.
• Manga artist Katsuhiro Otomo considered it among his favorite Tezuka manga.

The Architecture of a Catalog

The Wikipedia list organizes Tezuka's anime into broad production categories: Film, OVA, and Television. Within the Film heading, the catalog branches into pilot films, experimental films, PR films, and a subcategory labeled Tezuka Osamu World films, reflecting the sheer variety of formats his stories occupied on screen. Television is further split into TV series and TV specials, with the specials receiving an additional layer of subdivision. The list draws its core entries from Tezuka's official website, yet it deliberately extends beyond that source by including titles directly based on his work that have not yet appeared on the official page. English name translations are taken from the original names found on that same official site, creating a clear chain of authority for how each title is rendered in English. The result is a layered documentation where the canonical source anchors the list, but the community-compiled version reaches further, capturing the full breadth of animation that grew from his stories.

Beyond the Final Frame

Tezuka passed away in February 1989, yet the anime catalog makes unmistakably clear that his creative output did not simply halt with his death. Several entries in the list were produced after that date, meaning his stories continued to be adapted, animated, and delivered to audiences well into the posthumous era. This is a striking testament to the depth of his back catalog and the sustained demand for his narratives long after the man was gone. The list treats these posthumous productions alongside his lifetime work without any special visual separation, suggesting they are considered part of the same continuous body of animation. For a fan tracking his complete anime output, the chronological ordering places these later entries at the tail end of the list, a quiet but powerful reminder that an artist's influence can outlast the artist by decades and still generate new frames, new voices, and new audiences.

Animation in Service of Charity

One notable thread running through Tezuka's television output is its connection to Nippon TV's annual 24 Hour TV Love Saves the Earth charity program. The Wikipedia list carves out a dedicated subcategory for TV specials produced specifically for this fundraising event, indicating that his work was not only commercial entertainment but also a vehicle for public-service broadcasting. The fact that these specials receive their own distinct heading within the television section underscores how significant this charitable dimension was to his overall TV output. It speaks to a broader Japanese television tradition in which major networks dedicate marquee programming to annual fundraising drives, and Tezuka's name was attached to that tradition. For an encyclopedia reader, this small subcategory is a revealing window into how his animation served social purposes that extended well beyond pure storytelling or box-office returns.

The Official and the Unofficial

A fascinating tension runs through the sourcing of this anime list. The primary reference point is Tezuka's official website, which maintains its own curated inventory of his anime works. The English translations used throughout the Wikipedia article are drawn directly from the original names on that official site, establishing a clear chain of authority for nomenclature. However, the Wikipedia list deliberately goes beyond the official site's scope, incorporating additional titles that are directly based on his work but have not yet been listed on the official page. This creates a two-tier documentation system: the canonically recognized works, and a broader set of adaptations that the community considers part of his legacy. The list also cross-references a separate Wikipedia page cataloguing Tezuka's manga, acknowledging that his animation output is one dimension of a much larger and still-growing creative universe.