- Memetic Hair: Astro Boy in all versions.
Astro Boy (manga)
- Germans Love David Hasselhoff: Australians make up a large fanbase, partly due to being one of the few countries outside Japan that got the 1982 series.
- I Want My Jet Pack: Despite nuclear energy being utilized rapidly for civilian purposes today, as Tezuka hoped, we're nowhere nearing jetpack stage.
- What Do You Mean, It's for Kids?: There's a story arc about a group who skins dogs and turns them into cyborgs. While it's not actually shown on-panel, it's still incredibly dark. Likewise, other stories explore topics like racism (through anti-robot prejudice), war, and child abuse (as in Astro's origin). Nevertheless, it's still aimed at children. Likely because Tezuka respected his audience and didn't want to talk down to them.
- The Woobie: Astro, during the retelling of his origin in the Scara arc.
Astro Boy (1963 TV series)
- Woolseyism: The original title theme was instrumental. When NBC dubbed the show for their English audience, lyrics were added, sung by a children's chorus.
Astro Boy (1982 TV series)
- Keep Circulating the Tapes: There exists an English-language dub, produced exclusively for Canadian broadcast, colloquially referred to among fans as the "Canadian" version of the show. Unlike the more widely-known American dub, which has been used for the DVD releases, the Canadian dub was only ever broadcast within Canada up until the early 1990s and hasn't seen the light of day since. A few episodes have surfaced online, but it seems highly unlikely that an official release will ever materialize, as the American dub is already available, and the whereabouts of the Canadian version, if the master tapes even still exist, is unknown. The Canadian dub featured a different voice cast than the American one, gave many characters different names and contained additional editing (episode runtimes were shorter). It also featured a trivia game at the end of each episode, wherein Astro gave a recap of the plot, but would intentionally include an error for viewers to find. The answers were never revealed on the show; ideally viewers were instructed to write down what they believed to be the error and compare their answer with those of their friends.
- Macekre: The English dub is abysmal, with the dialogue sounding like it was made up on the spot by the voice actors.
Astro Boy (2003 TV series)
- Jerkass Woobie: Dr. Tenma.
- The Problem with Licensed Games: The PlayStation 2 entry by Sega ended up being incredibly bland in terms of gameplay, among other problems.
- They Wasted a Perfectly Good Character: Atlas. His first 2 episodes built him up as the perfect Shadow Archetype to Astro. Then, he's sent adrift in space for thirty-something episodes, only to be brought back for one Redemption Equals Death episode, and is brought Back from the Dead to be a minor player in the Grand Finale.
Astro Boy: Omega Factor
- No Problem with Licensed Games: This game on the other hand was much better received. Treasure knows their stuff when it comes to making fun games.
- That One Boss: Carabs, Pluto, Sharaku.
Astro Boy (2009 film)
- Anvilicious: President Stone will say it again and again: he is the president, and for Metro City to depend on him he needs to make a war.
- Big-Lipped Alligator Moment: The attack of the giant alien at the end whose only purpose was to give a shirtless Astro an action shot, probably.
- Coming-Out Story: Astro Boy's secret of being a robot resembles most Coming Out Stories, especially the nighttime scene when he almost "comes out" to Cora.
- Complete Monster: In this Animated Adaptation of Osamu Tezuka's manga, President Stone, at first seeming to be nothing more than an impulsive and childish leader, is slowly revealed to be far more wicked. Stone commissions Doctors Tenma and Elefun to build him a super robot, known as The Peacekeeper, and plans to use it to wage war with the harmless Surface-Dwellers. Despite the scientists' pleas, Stone uploads a highly dangerous power source into The Peacekeeper, resulting in the death of Tenma's son, an accident Stone barely acknowledges. Learning Tenma rebuilt his son as a robot and used another highly effective power source to give him life, Stone tries to capture or kill the boy to extract the power source, causing copious amounts of destruction to the city in the process. After detaining the child, now known as "Astro," Stone strong-arms Tenma into removing his power core, which would kill the boy. When Tenma refuses, leading to Astro escaping, Stone orders both Tenma and Elefun arrested and plans to have them executed. Stone then reactivates and takes control of The Peacekeeper, starts destroying the city looking for Astro, and prepares to crush several of Astro's friends, all children, trying to draw him out. Doing everything in the hopes that he would be re-elected, Stone was power-hungry, delusional, and sociopathic for an ultimately petty reason.
- Hilarious in Hindsight: Donald Sutherland plays President Stone in the film. Sounds a lot like President Snow, now does it?
- Older Than They Think: Quite a few people claimed that giving him butt lasers was disrespectful to the source material and Astro's creator... Despite the fact that he had them in the original work.
- The Problem with Licensed Games: The tie-in game tried to borrow gameplay from Omega Factor and failed miserably.
- Retroactive Recognition:
- Visual Effects of Awesome: Say what you will about the film, but its visual effects were top-notch for its day and still hold up today.
- WTH, Casting Agency?: In Brazil, Astro Boy was voiced by this guy.