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The Best Episodes of Astro Boy

Every episode of Astro Boy ranked from best to worst. Let's dive into the Best Episodes of Astro Boy!

Astro is a robotic boy created by Dr. Tenma to replace his late son. When Tenma destroys his laboratory and shuts down Astro, the Ministry...
Genres:AnimationAction & AdventureSci-Fi & FantasyFamilyComedyKids
Networks:Fuji TVANIMAX

Best Episodes Summary

"The Secret of Blue Knight" is the best rated episode of "Astro Boy". It scored 9.4/10 based on 5 votes. Directed by N/A and written by N/A, it aired on 11/16/2003. This episode scored 0.9 points higher than the second highest rated, "The Final Battle".

  • The Secret of Blue Knight
    9.4/105 votes
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    #1 - The Secret of Blue Knight

    Season 1 Episode 32 - Aired 11/16/2003

    When Astro and The Blue Knight try to stop illegal, underground robot fights, they are forced to fight each other. As they prepare for battle, Astro learns the truth about The Blue Knight's past.

    Director: N/A

    Writer: N/A

  • The Final Battle
    8.5/1011 votes
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    #2 - The Final Battle

    Season 1 Episode 50 - Aired 3/28/2004

    No description available

    Director: N/A

    Writer: N/A

  • Little Sister, Big Trouble
    8.1/109 votes
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    #3 - Little Sister, Big Trouble

    Season 1 Episode 13 - Aired 7/6/2003

    Doctor O'Shay creates a robot-sister, Zoran, for Astro. While Zoran is off exploring she is captured by the giant robot bird Katari, and only her powerful big brother can save her!

    Director: N/A

    Writer: N/A

  • Destination Deimos
    8.0/1010 votes
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    #4 - Destination Deimos

    Season 1 Episode 3 - Aired 4/20/2003

    On Deimos, one of the two moons of Mars, robot miners ignore the orders of their human foreman and mysteriously begin digging on their own. Astro must work fast to discover the cause of the robots' strange behavior before Intergalactic Security exterminates them for disobeying.

    Director: N/A

    Writer: N/A

  • Neon Express
    8.0/108 votes
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    #5 - Neon Express

    Season 1 Episode 8 - Aired 5/25/2003

    When Kato hides a hyper-accelerator virus on the robotic super train Neon Express, it sends the train and its passengers speeding out of control. Astro must rescue the passengers and prevent the train from crashing into the center of Metro City.

    Director: N/A

    Writer: N/A

  • Into Thin Air
    7.9/109 votes
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    #6 - Into Thin Air

    Season 1 Episode 4 - Aired 4/27/2003

    The evil Skunk tricks Denkou, an "Invisible Robot," into committing a string of robberies. Astro soon realizes that Denkou is not bad, she just doesn't know the difference between right and wrong and Astro is the only one that can teach her.

    Director: N/A

    Writer: N/A

  • Rainbow Canyon
    7.9/1011 votes
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    #7 - Rainbow Canyon

    Season 1 Episode 5 - Aired 5/4/2003

    An experiment in advanced weather technology has turned a desert canyon into fertile farmland, and proven once again that humans and robots can work together, But a sudden rash of earthquakes and storms threatens to wreck the project. It's up to Astro to find out who is behind the evil plan.

    Director: N/A

    Writer: N/A

  • Astro Vs. Atlas
    7.8/107 votes
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    #8 - Astro Vs. Atlas

    Season 1 Episode 7 - Aired 5/18/2003

    As Atlas continues his rampage, Astro learns the truth about his own past. With the memory circuits reactivated, Astro remembers being created, rejected, abandoned by Dr. Tenma, Astro must face difficult questions about his own identity and his ultimate destiny.

    Director: N/A

    Writer: N/A

  • Franken
    7.8/107 votes
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    #9 - Franken

    Season 1 Episode 9 - Aired 6/1/2003

    A mysterious robot terrifies humans as he hunts for scrap robot parts and uses them to rebuild his own malfunctioning system. The police target the robot for destruction, but he may not be the "evil robot" he appears to be, and Astro must uncover the truth before its to late.

    Director: N/A

    Writer: N/A

  • The Venus Robots
    7.8/107 votes
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    #10 - The Venus Robots

    Season 1 Episode 10 - Aired 6/8/2003

    In order to take advantage of their special freezing powers, Dr Tenma pretends to be the long-awaiting leader of a group of advanced robots. The Robots don't realize that their freezing functions cause terrible destruction by freezing everything in sight. Can Astro convince the Robots to reject Tenma's evil influence?

    Director: N/A

    Writer: N/A

  • Robot Circus
    7.8/107 votes
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    #11 - Robot Circus

    Season 1 Episode 11 - Aired 6/15/2003

    A robot circus star named Reno is revealed to be a human boy in disguise. Astro must save the circus, and prevent the authorities from taking the boy from his robot family.

    Director: N/A

    Writer: N/A

  • Reviving Jumbo
    7.8/107 votes
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    #12 - Reviving Jumbo

    Season 1 Episode 12 - Aired 6/22/2003

    Skunk reactivates Jumbo, a giant robot and uses him to stage a daring prison break. Astro must stop Jumbo and turn him back into the gentle giant that he really is.

    Director: N/A

    Writer: N/A

  • Rocket Ball
    7.4/1010 votes
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    #13 - Rocket Ball

    Season 1 Episode 2 - Aired 4/13/2003

    When a friendly robot-dog invites Astro to watch a game of Rocket Ball, he looks forward to a fun day at the ballpark, Instead, the game turns chaotic when the robot players start destroying the stadium and threatening the human spectators. Astro must find a way to save the humans and get the robot athletes under control!

    Director: N/A

    Writer: N/A

  • Power Up!
    7.0/1024 votes
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    #14 - Power Up!

    Season 1 Episode 1 - Aired 4/6/2003

    When Astro is activated the city's power starts to drain, and he must try and stop the robot Magnamite from destroying everything. Armed with Kokoro (the ability of free will) Astro discovers his purpose for being activated.

    Director: N/A

    Writer: N/A

  • Birth of Atlas
    7.0/1010 votes
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    #15 - Birth of Atlas

    Season 1 Episode 6 - Aired 5/11/2003

    Dr. Tenma builds a powerful robot named Atlas whose abilities rival Astro's, But Atlas has a rebellious nature and begins to destroy Metro City. Astro must save the city from Atlas, while beginning to learn the secrets of his own past.

    Director: N/A

    Writer: N/A

  • Micro Adventure
    NaN/100 votes
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    #16 - Micro Adventure

    Season 1 Episode 14 - Aired 7/13/2003

    A micro-robot attacks Zoran's operating system from the inside. Astro must shrink down to microscopic size and go inside of Zoran's system to fight the micro-robot and save his sister.

    Director: N/A

    Writer: N/A

  • Only a Machine
    NaN/100 votes
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    #17 - Only a Machine

    Season 1 Episode 15 - Aired 7/20/2003

    Astro must stop Erasabot from sucking out the artificial intelligence from all the robots in Metro City.

    Director: N/A

    Writer: N/A

  • Robot Hunters
    NaN/100 votes
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    #18 - Robot Hunters

    Season 1 Episode 16 - Aired 7/27/2003

    An android robot hunter is attacking innocent robots and dismantling them for sale on the black market. Astro befriends the hunter and tries to help him overcome the programming he was given by Skunk.

    Director: N/A

    Writer: N/A

  • The Rise of Pluto
    NaN/100 votes
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    #19 - The Rise of Pluto

    Season 1 Episode 17 - Aired 8/3/2003

    Pluto vows to become the supreme robot champion of the world. As he defeats his rivals, he gains their special powers and becomes even stronger. Astro is the only one left who can stop Pluto.

    Director: N/A

    Writer: N/A

  • The Fall of Archeron
    NaN/100 votes
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    #20 - The Fall of Archeron

    Season 1 Episode 18 - Aired 8/10/2003

    No description available

    Director: N/A

    Writer: N/A

  • Robot Boy
    NaN/100 votes
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    #21 - Robot Boy

    Season 1 Episode 19 - Aired 8/17/2003

    Astro's human friend Matthew loves robots so much that he pretends he is one. But when he tries to use "robot" powers to save his mom from a space shuttle accident, it's up to Astro to save them both.

    Director: N/A

    Writer: N/A

  • Dawn of the Techno-Revolution
    NaN/100 votes
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    #22 - Dawn of the Techno-Revolution

    Season 1 Episode 20 - Aired 8/24/2003

    With his authority challenged by Shadow, Dr. Tenma sets out to prove that Astro is loyal to the robot cause and will join them in leading the robot revolution.

    Director: N/A

    Writer: N/A

  • Dragon Lake
    NaN/100 votes
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    #23 - Dragon Lake

    Season 1 Episode 21 - Aired 8/31/2003

    Astro must find the poison around Dragon Lake. When he gets there he meets the eccentric explorer Gulliver, and they face-off against the toxic Repo Girls in a fight to save Dragon Lake.

    Director: N/A

    Writer: N/A

  • The Legend of Tohron
    NaN/100 votes
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    #24 - The Legend of Tohron

    Season 1 Episode 22 - Aired 9/7/2003

    Astro must protect Princess Abby against a plot to take over her ancient land of Mayura.

    Director: N/A

    Writer: N/A

  • Lost In Outland
    NaN/100 votes
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    #25 - Lost In Outland

    Season 1 Episode 23 - Aired 9/14/2003

    While saving the planet from a falling satellite, Astro is damaged and loses his memory. Boon, a scientist with a mysterious past, tries to help Astro recover before another satellite hits Earth.

    Director: N/A

    Writer: N/A