NaN/100 votesLoading...#1 - One Million Mammoth Snails
Season 1 Episode 4 - Aired 1/22/1963
Astro Boy and Professor Ochanomizu investigate the disappearances of campers and mountaineers in the ice mountains, and discover a scientist who unleashes a swarm of snails on the world.
Director: Osamu Tezuka, Yuusaku Sakamoto
Writer: N/A
NaN/100 votesLoading...#2 - The Sphinx
Season 1 Episode 5 - Aired 1/29/1963
Astro Boy is tricked by some bandits into helping them search for treasure in the Egyptian desert.
Director: Osamu Tezuka
Writer: N/A
NaN/100 votesLoading...#3 - Zero, the Invisible Robot
Season 1 Episode 6 - Aired 2/5/1963
An invisible robot named Denkou (Zero) is stolen by the gangster Skunk Kusai (Fearless Fred Fink), who seeks to use him for criminal purposes. Denkou has no concept of good or bad because of his upbringing under the criminal, but is saved by Astro.
Director: Gisaburō Sugii
Writer: N/A
NaN/100 votesLoading...#4 - Captain Atom
Season 1 Episode 7 - Aired 2/12/1963
Alien resembling aliens including the doctor of Ochanomizu and Higeyajiji emigrated from the stars that looked like the earth in emergency. However, the food crisis and humankind will begin attacking the aliens with cell shrink solution.
Director: Eiichi Yamamoto
Writer: N/A
NaN/100 votesLoading...#5 - The Spirit Machine
Season 1 Episode 8 - Aired 2/19/1963
In a faraway land, a dictator rises to power and seeks to rule the world.
Director: Motoaki Ishii
Writer: N/A
NaN/100 votesLoading...#6 - The Deep Freeze
Season 1 Episode 9 - Aired 2/26/1963
Criminal Black Lux (Sharkey Dirk) becomes notorious in the Arctic.
Director: Shuji Konno
Writer: N/A
NaN/100 votesLoading...#7 - Strange Voyage
Season 1 Episode 10 - Aired 3/5/1963
Astro Boy leaps aboard a spaceship just before blastoff.
Director: Yuusaku Sakamoto
Writer: N/A
NaN/100 votesLoading...#8 - Time Machine
Season 1 Episode 11 - Aired 2/12/1963
Higeoyaji is relaxing at home when suddenly a mysterious ship from the future crashes through his front door, the work of Dr. Time.
Director: Osamu Tezuka
Writer: N/A
NaN/100 votesLoading...#9 - Cross Island
Season 1 Episode 12 - Aired 3/19/1963
Cross Island is a mysterious uncharted island where a task force of robots work in great secrecy, extracting valuable stores of uranium.
Director: Gisaburō Sugii
Writer: N/A
NaN/100 votesLoading...#10 - The Eyes of Christ
Season 1 Episode 13 - Aired 3/26/1963
That priest was dying carving a single mark on the eyes of Christ decorated in the church. Apparently it seems to be a clue to teach the identity of the pirate who broke into the church. The same pirate begins to aim for beard hair that knew their secret.
Director: Eiichi Yamamoto
Writer: N/A
NaN/100 votesLoading...#11 - The Artificial Sun
Season 1 Episode 14 - Aired 4/2/1963
Film producer Elia Belial plans to ruin Earth using an artificial sun.
Director: Motoaki Ishii
Writer: N/A
NaN/100 votesLoading...#12 - Grass Boy
Season 1 Episode 15 - Aired 4/9/1963
Astro runs into two of his friends and stumbles upon an interesting flower. While Astro's friends want to pick it, Astro says to leave the flower alone. He then proceeds to tell the tale of this bizarre flower.
Director: Shuji Konno
Writer: N/A
NaN/100 votesLoading...#13 - Silver Comet
Season 1 Episode 16 - Aired 4/16/1963
Young Koichi (Tommy Speed) prepares to enter a world race with his supersonic car, the Silver Comet.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#14 - Hullabaloo Land
Season 1 Episode 17 - Aired 4/23/1963
Saturn (Baron Von Hoodwink), an evil robot kidnaps Princess Odette (Princess Lollipop), a robot swan who can turn back into her normal self when everyone's asleep. She runs away from Hullabaloo Land as Astro comes to her aid.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#15 - Gangor the Monster
Season 1 Episode 18 - Aired 4/30/1963
A robot centipede disguised as 47 wrestling robots causes havoc on a ship and in the ocean.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#16 - The Cosmic Giant
Season 1 Episode 19 - Aired 5/7/1963
Garon, a giant cosmic robot lands on Earth as a meteor, then Astro Boy and the scientists reconstruct him. During a thunderstorm, Garon revives. A corrupt scientist tells Garon to reconstruct an island in the image of his home planet, also changing the atmosphere to match that of the planet, which is toxic to life on Earth.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#17 - Toxor, the Mist Man
Season 1 Episode 20 - Aired 5/14/1963
Astronauts report seeing fireflies in space, but they are really gaseous beings led by the evil Toxor.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#18 - Satellite R-45
Season 1 Episode 21 - Aired 5/21/1963
At the large space station Satellite R-45, Astro Boy discovers a pair of souvenir vendors hawking stolen wares.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#19 - Sea Serpent Isle
Season 1 Episode 22 - Aired 5/28/1963
At a beach Astro Boy spots a mysterious bottle with a note calling for rescue from an uncharted island called Sea Serpent Isle.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#20 - Kingdom of the Sea
Season 1 Episode 24 - Aired 6/11/1963
A strange robot demands that Astro Boy and Professor Ochanomizu accompany him to an unknown kingdom at the bottom of the sea.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#21 - The Deep-Underground Tank
Season 1 Episode 25 - Aired 6/18/1963
Together with Dr. Jordan who ran away from under the president who plots world conquest, Atom who got into the underground tank fights the president. But the underground tank loses control and starts pushing towards the volcano.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#22 - Don Tay's Infernal Machine
Season 1 Episode 26 - Aired 6/25/1963
An evil scientist who hates civilization named Dr. Ram (Don Tay) invents a robot called Atlas to destroy a village.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#23 - Secret Agent 3-Z
Season 1 Episode 30 - Aired 7/23/1963
A president fears for his life, as the presidents of several other countries have all been attacked by Führer ZZZ (Secret Agent 3-Z).
Director: N/A
Writer: N/A
NaN/100 votesLoading...#24 - Mysterious Cosmic Rays
Season 1 Episode 31 - Aired 7/30/1963
A monster appears in the city, and it turns out to be Dr. Dorian, who has been exiled to Mars. He turns into a monster because he cannot get cosmic X-rays on the Earth.
Director: N/A
Writer: N/A
NaN/100 votesLoading...#25 - The Three Magicians
Season 1 Episode 33 - Aired 8/13/1963
Kino (Abracadabra), a robot magician is approached by a strange magician named Tenpercent, who later frames him for stealing art paintings from a museum. With Astro's help Kino must provide the evidence that he was framed.
Director: N/A
Writer: N/A
The Worst Episodes of Astro Boy
Every episode of Astro Boy ranked from worst to best. Explore the Worst Episodes of Astro Boy!
In the year 2000, Dr. Boyton creates a super-robot in his deceased son's image. He calls the robot Astro Boy. Astro Boy can swim oceans,...
Genres:AnimationMysterySci-Fi & FantasyKids
Network:Fuji TV
Worst Episodes Summary
"One Million Mammoth Snails" is the worst rated episode of "Astro Boy". It scored N/A/10 based on 0 votes. Directed by Osamu Tezuka, Yuusaku Sakamoto and written by N/A, it aired on 1/22/1963. This episode scored NaN points lower than the second lowest rated, "The Sphinx".