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Osamu Tezuka's Astro Boy, called Tetsuwan Atom ("Mighty Atom" or literally "Iron Arm Atom") in Japan, began life as a manga in 1952, and has been brought to television as an anime three times, in 1963, 1980, and 2003. It's a historically significant series, as Tezuka's style defined the look of iconic anime and manga, and the English dub of the 60s show became one of the first popular animes in America.In the unimaginably distant future year of 2001, Dr. Tenma, of the Institute of Science, loses his son in an accident. Half-mad with grief, the roboticist creates "Tetsuwan Atom," a rocket-powered android in his late son's image, and programs him to be a "good little boy." After a series of tragedies and misadventures, including abandonment by his "father," Atom is rescued and adopted by Dr. Ochanomizu, and decides to take up crime fighting. This decision soon leads him into all manner of danger and excitement, as he battles mad scientists, evil aliens and giant robots.Tetsuwan Atom/Astro Boy is something of a cultural phenomenon in Japan; the character is virtually a folk hero. For example, on April 7, 2003 - the date of Astro Boy's "birth" within the show - the third TV series debuted and celebrations were held all over the world. The largest, of course, were in Japan, but even across America and Europe Japanese neighborhoods threw parties to commemorate the event. A commemorative plaque stands in the Tokyo district that the manga identifies as Atom's birthplace.The third TV series inspired a video game, Astro Boy: Omega Factor, that is generally held to have avoided The Problem with Licensed Games; later a second game was released for the PS2 that unfortunately did not avoid The Problem with Licensed Games. A CGI movie produced by Imagi Animation Studios was released in October 2009, also bringing to the table a mediocre movie-based game that spanned several consoles. In early 2011, an iPhone/iPod game called Astro Boy: Tap Tap Rush was released, first in Japan and then later in the US. For a video game series that was directly inspired by this franchise, (and was in fact going to be an adaptation before the company lost the license,) see Mega Man (Classic).
The Astro Boy manga provides examples of the following tropes:
Abusive Parents: Dr. Tenma is an early manga example. After he lost his son in a traffic accident, he built Astro Boy as a Replacement Goldfish. Shortly afterwards, he realized a Replacement Goldfish is not a substitute for the original thing, and he began to berate and scorn Astroboy constantly, yelling him for such a nefarious crimes like being unable to grow up. Finally he got fed up with him and sold him in slavery. Thank God that Astro Boy was programmed to be a "good boy" and was taken in by Dr. Ochanomizu, who was an altruistic, kind man instilled and nurtured those traits in Astro Boy, or maybe he could have become a Woobie, Destroyer of Worlds.
All Anime Is Naughty Tentacles: A Discussed Trope. In the introduction to Count Bat, Tezuka discusses the different attitudes toward sex and violence in Japanese and American cartoons and how it's helped to shape these cultures' perceptions of each other.
Author Avatar: The collected editions have introductions in comic-strip form, showing Tezuka in his studio talking "to camera" about the stories (and sometimes being visited by the characters, who suggest things for him to explain to the audience).
Badass Adorable: Whatever else he may be, Astro is always this. May be the earliest example, and certainly the earliest in anime. (Of course, Astro is the earliest for a lot of things in anime.)
Blue and Orange Morality: One story had Astro encounter an alien who had assisted in humanity's evolution. Said alien, having seen what has become of the human race, decides to destroy if in order to put Earth out of its misery. When Astro counters that there are good humans, the alien simply retorts that "Good" and "Evil" are strictly human concepts; as far as the rest of the universe is concerned, "All humans are worthless!"
Continuity Snarl: Dear lord, so very many of them. Try to put the stories into a continuous timeline and the only thing you'll end up with is a headache.
Cybernetics Eat Your Soul: Averted. In one story, a terrorist organization steals dogs and grafts their brains in mechanical, humanoid bodies in order to create loyal and utterly obedient soldiers. However, in the prologue of the story, Osamu Tezuka argued as far as he was concerned, the soul or spirit of the being always endures, even it if is mechanized.
Deal with the Devil: Subverted in the retelling of Astro's origin in the Scara time travel arc. A suspicious-looking Japanese-American businessman offers to fund Dr. Tenma's project to create a robot boy, if Tenma will let the man borrow the robot for one day. The man turns out to be a civil rights activist who only shows Astro how badly robots need rights themselves.
Detect Evil: Astro's incorruptible heart is advanced enough to tell if someone is evil or a complete jerk.
Never Say "Die": variation: Tezuka and co. had faith that kids could handle such heavy concepts as death, but Executive Meddling on both sides of the Pacific forced them to tone it down. He does kill humans a few times in the manga, though, including an eco-terrorist about to throw a bomb into a room full of hostages & scads of American soldiers about to bomb a village full of innocent civilians during a time travel incident that put him smack-dab in the middle of The Vietnam War.
Parental Abandonment: Seeing that Astro was not physically growing, Tenma cruelly tells him he's not his son and sells him to the Robot Circus. But of course, Tenma was mentally unstable to begin with.
Pinocchio Syndrome: Astro constantly questions the humanity he protects to the point of being completely bewildered by their hostile actions to one another.
Reused Character Design: As usual for Tezuka, many of the supporting characters are drawn from his "Star System" of recurring character designs. Played with in one story where Astro is approached by a sinister-seeming businessman who turns out to have altruistic motives; for Tezuka fans, the initial distrust is enhanced by the businessman's character design, which Tezuka had previously only used for villains.
Ridiculously Human Robots: Astro and Uran fit this to a T. Other machine characters look less human, even other androids like Astro and his sister aren't that perfect.
Robo Family: One of the first examples (if not the first), Astro has his sister Uran, a couple of brothers (who don't appear in most adaptations for reasons of Adaptation Distillation), and his robot parents, all created after him to remedy his lack of a real family; as well as his other sibling Atlas.
Utopia: Astro's world is a more hopeful vision of the future, with all the cliches seen today: high-rise buildings stretching into the sky, robots everywhere, flying cars, and world peace. In the manga, the only country that wages war is Pekoku (Peacock). Tezuka lived in a time where nuclear war seemed a great possibility and as such the manga was a positive look on the use of atomic power.