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Sonic X
Sonic X English Logo.png
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(Sonikku Ekkusu)
Genre Adventure, science fiction
Anime television series
Directed by Hajime Kamegaki
Produced by Takeshi Sasamura (1–52)
Tadahito Matsumoto
Written by Hiro Masaki (1–52)
Kiyoko Yoshimura (53–78)
Music by Yoshihiro Ike
Studio TMS Entertainment
Licensed by
Fox Kids Europe/Jetix Europe (2003–2009)
4Kids Entertainment (2003–2012)
Saban Brands (2012–2014)
Discotek Media (2015–present)
Network TV Tokyo
English network
Original run April 6, 2003 (2003-04-06)April 18, 2005 (2005-04-18)
Episodes 78 (List of episodes)
Developer Torus Games
Publisher LeapFrog Enterprises
Genre Edutainment
Platform Leapster
Released May 5, 2005

Sonic X (Japanese: ソニックX, Hepburn: Sonikku Ekkusu) is a Japanese anime television series based on Sega's Sonic the Hedgehog video game series. Produced by TMS Entertainment under partnership with Sega and Sonic Team, and directed by Hajime Kamegaki, Sonic X initially ran for 52 episodes, broadcasting on TV Tokyo from April 6, 2003 to March 28, 2004. A further 26 episodes aired in the United States, Canada, Europe, and the Middle East from 2005 to 2006. The show's American localization and broadcasting were handled by 4Kids Entertainment, which edited it and created new music.

The series follows a group of anthropomorphic animals who accidentally teleport from their home planet to Earth after attempting to save one of their friends from their enemy Doctor Eggman. Separated, Sonic the Hedgehog is saved by a human boy named Chris Thorndyke, who helps him find his friends while repeatedly scuffling with Doctor Eggman and his robots over control of the powerful Chaos Emeralds, and becoming celebrities. The final story arc sees the friends return with Chris to their world, where they enter outer space with a newfound plant-like creature named Cosmo and fight an army of aliens called the Metarex.

Sonic X received mixed reviews. Generally, writers criticized its American localization and some characters, but praised its story and aesthetics. The series was popular in the United States and France, though less so in its native Japan. The show's merchandise included an edutainment video game for the Leapster, a trading card game, a comic book series featuring an original storyline, and various toys and other items.


Season 1

Sonic, Tails and Amy Rose attempt to rescue Cream the Rabbit and her pet Chao Cheese from Doctor Eggman, who has already retrieved the seven Chaos Emeralds. While attempting to destroy his base, one of Eggman's robots inadvertently shoots a machine containing the Emeralds, which activates the "Chaos Control" technique. This teleports Sonic, Eggman (and his robots), Tails, Amy, Cream, and Cheese, as well as Big the Cat (with his pet frog Froggy), Rouge the Bat, Knuckles the Echidna, and the Chaotix (a detective crew comprising Vector the Crocodile, Espio the Chameleon, and Charmy Bee) to Earth, the parallel-universe version of their world with humans. Sonic is chased by the police, escapes into a mansion's swimming pool, and is rescued by a twelve-year-old boy named Chris Thorndyke, who lives there with his movie-star mother Lindsey, corporate executive father Nelson, scientist grandfather Chuck, maid and chef Ella, and butler Mr. Tanaka. Chris tries to hide the anthropomorphic friends from his family until Cream accidentally reveals them, but they all build up a good rapport with Chris' family and with Chris' friends Danny, Francis, and Helen.

Sonic and his friends still want to return home, so they repeatedly scuffle for the Emeralds with Doctor Eggman, his robot assistants—the hyperactive, attention-seeking Bokkun and the bumbling Bocoe and Decoe—and his larger, armed robots. Eggman plans to take over the world, catching the attention of the unnamed nation's president, so Knuckles, Rouge, and federal agent Topaz work together to stop him. The other anthropomorphic residents soon join the crusade and, when Eggman is defeated, they are all hailed as heroes.

Season 2

Eggman awakens a creature named Chaos from the Master Emerald. The animals fight a losing battle to retrieve the Emeralds until Chaos absorbs all seven and becomes giant, but an echidna girl named Tikal, who entombed herself and Chaos in the Master Emerald millennia ago, emerges to help placate him. After Sonic uses the Chaos Emeralds to become Super Sonic, he defeats Chaos, who returns to the Master Emerald with Tikal.

Shortly afterwards, Eggman finds his grandfather Gerald Robotnik's diary and Gerald's old project Shadow in a military base. After being released by Eggman, Shadow breaks into a museum to steal an Emerald, which gets Sonic arrested. Amy rescues him, but Shadow, Eggman, and the duplicitous Rouge escape to the Space Colony ARK, where Eggman threatens to use a weapon called the Eclipse Cannon to destroy Earth unless they submit to his rule; he blows up half of the Moon to prove his power. Eggman collects the Emeralds to power the Cannon, but this triggers a program Gerald set up decades ago, which will cause Space Colony ARK to hurtle into Earth, destroying the planet in less than half an hour. Gerald did this in order to exact revenge on humanity, who he blamed for the death of his Granddaughter Maria after she was killed in a government raid on the Space Colony ARK. Everyone teams up and works together to shut it down except Shadow, who is unsympathetic and believes he has fulfilled his purpose of revenge. Chris confronts Shadow, reminding him of Maria's last wish for Shadow to be a protector of humanity, to guide and aid them. Moved to tears and with a new sense of purpose, Shadow teams up with Sonic and both power up using the Emeralds and teleport the ARK away from Earth, though Shadow is seemingly killed in the process. Sonic, his friends, and Eggman reflect on Shadow's sacrifice and return to Earth.

Cream also reunites with her mother, Vanilla the Rabbit, in the 39th episode. Eggman rebuilds the Moon, seemingly out of remorse, but its position shifts, creating a solar eclipse, so he manufactures and sells "Sunshine Balls" to replicate sunlight. Sonic sees through his greedy motivations, and Eggman is arrested for fraud. Bokkun activates a robot named Emerl, who quickly allies with the anthropomorphic people, and Eggman escapes prison. Emerl wins an Emerald in a martial arts tournament involving numerous hero and villain characters, but he goes berserk and begins to wreck the city, forcing Cream and Cheese to destroy him.

Later, two government physicists show up at Chris' mansion to announce that Sonic's world and Earth were once a single world split in two by a cataclysmic event, but are rejoining, which will stop time irreversibly, and the only way to stop it is to send the anthropomorphic people back home. Tails and Chuck begin to build a gate to teleport Sonic and company back to their own world with Chaos Control, but Chris does not want them to leave. When it is finished and all their friends but Sonic have left, Chris suddenly shuts the machine down and whisks Sonic into the woods to hide out of fear his parents will return to never being home once Sonic is gone. Sonic is understanding, yet teaches Chris that as a fellow person neither can force the other to feel a certain way and that their friendship is free will. Chris tearfully acknowledges that he bound Sonic's freedom today and stopped his friend from going back home and remorsefully asks for forgiveness while Sonic tells him he'll be able to be strong even without him being there. Chris' parents find him and promise to spend more time with him. Chris having learned his lesson and grown as a person goes for one final run with Sonic before they mutually part ways and Sonic returns to his own planet, stopping the merging of the worlds. However, Chris vows that one day, he will see Sonic again.

Season 3

Six months later, a race of villainous robots known as the Metarex attempt to steal the Emeralds from Sonic, but he scatters them across the galaxy. Meanwhile, on Earth, where six years have passed and Chris is now eighteen, Chris builds another device to return to his friends' world; he is twelve again when he arrives. A sick plant-like girl named Cosmo lands on their planet and they nurse her back to health, so she joins them, and they all board Tails' new spaceship, The Blue Typhoon. On the Typhoon, they scour the galaxy for the Emeralds and "Planet Eggs" (objects that allow life to flourish on planets, which the Metarex have stolen to depopulate the galaxy) and fight the Metarex at every turn. Along the way, Tails and Cosmo slowly fall in love with each other. Rouge finds Shadow alive in a capsule on Eggman's ship and he is later released (though he has lost his memory.) At first, he and Rouge assist Eggman (even saving Chris on one occasion) but after Shadow witnesses the death of resistance fighter who reminded him of Maria, both he and Rouge go off on their own to fight the Metarex independently. Eggman eventually joins the Metarex though this is a ruse to gather more information. After discovering the origins, methods, and goals of the Metarex, Shadow reappears and tries to kill Cosmo, much to Tails' anger. The Metarex's leader, Dark Oak, appears and reveals that the Metarex and Cosmo are of the same species and that they secretly implanted a tracking device in her brain while extinguishing the rest of their kind; she has been an unwitting spy ever since. It was for this reason Shadow wanted Cosmo dead. Chris, Knuckles, and Tails notice that removing the device will likely destroy her sight and hearing forever. Knuckles pushes for it to be removed anyway (In the Japanese version he stresses to find a way to remove it without damaging her), but Tails can't make any decisions at the present time so the surgery is called off and the battle against the Metarex continues.

The heroes, along with the Chaotix and Shadow, head to the center of the universe, where the Metarex are ominously controlling a planet that is made of water and contains a Planet Egg. After Sonic almost drowns in it, the planet begins turning into a giant seed; the Metarex reveal that, because they have lost the battle, they will destroy the galaxy with this planet. The Metarex then proceed to fuse together, forming a dragon-like plant monster that attaches itself to the giant seed. Sonic and Shadow use the Chaos Emerald to become Super Sonic and Super Shadow but are still unable to defeat the fused Metarex. Cosmo sees a vision from her mother Earthia, telling her that she must sacrifice herself to save the rest. She fuses with the giant seed and instructs Tails to use the Blue Typhoon's cannon to fire Super Sonic and Super Shadow at her and the seed. Tails hesitates, torn between saving the galaxy and killing Cosmo, but eventually finds the inner strength and annihilates the Metarex along with Cosmo, whose seed disperse throughout the galaxy along with the Planet Eggs stolen by the Metarex which return to their original planets. Dark Oak has a moment of repentance before dying while having a vision of being greeted by Earthia as he passes away. Shadow then apparently sacrifices himself to contain the ensuing explosion. After the battle, Sonic reappears and solemnly informs a heartbroken Tails that he could not save Cosmo and hands him one of her seeds. Back on Sonic's planet Eggman builds a device for Chris to return home, later claiming that this was done to reduce the strength of Team Sonic. The series ends with Chris returning home and business as usual for Sonic and his friends as they joyfully gear up to once again put a stop to Eggman's schemes. The final shots show Shadow on an alien planet and Cosmo's seed sprouting in Tails' workshop.

Other media

Sonic X was extensively merchandised in various forms of media and other products. Two Game Boy Advance Videos of episodes from the first season of Sonic X were released in May 2004. In October 2004, ShoPro licensed four manufacturers to create Sonic X merchandise, they variously produced items such as toys, bedding, beach towels, backpacks, stationery, and pajamas. Six Sonic X novels were published between 2005 and 2007: Aqua Planet, Dr. Eggman Goes to War, Battle at Ice Palace, and Desperately Seeking Sonic by Charlotte Fullerton, Meteor Shower Messenger by Paul Ruditis, and Spaceship Blue Typhoon by Diana G. Gallagher.

Comic series

Sonic X
Publication information
Publisher Archie Comics
Publication date September 18, 2005 – January 1, 2009
Number of issues 40
Creative team
Writer(s) Ian Flynn, Joe Edkin
Penciller(s) Tim Smith III
Inker(s) Jim Amash
Letterer(s) John Workman
Colorist(s) Josh Ray
Editor(s) Mike Pellerito

Archie Comics, which published Sonic the Hedgehog comics until 2017, started a Sonic X series in 2005. It was originally set to run for only four issues, but was extended to 40 issues due to high demand. The last issue was released on January 1, 2009, and led into the first arc of the Sonic Universe series. The comics were written by Ian Flynn, who also authored the main comic series. Some issues were published in Jetix Magazine in the United Kingdom, Italy and Poland.

While the comics are set during the Sonic X timeline, their plot is original. Eggman imprisons humans inside robots and tries to use them to kill the animals, but the animals destroy the robots. Eggman uses malicious Chao to destroy Station Square, but Tikal and Chaos arrive from the past, return the Chao to normal, and bring them back to the past. Soon, Sonic finds a machine in the desert and thinks nothing of it, but after fighting with Eggman in Paris and a bizarre world created by the doctor, Eggman reveals the desert machine was his and it begins to wreck Station Square. Sonic defeats it, but he is accused of working with Eggman, so he and Eggman are both locked up. Nelson bails Sonic out of jail, and he saves Cream and Chris from some ghosts.

Eggman enacts more malicious schemes based on holidays like Christmas, Valentine's Day and St. Patrick's Day. Afterwards, he temporarily fires Decoe and Bocoe and creates replacements, Dukow and Bukow, who kidnap Sonic and give him to an organization called S.O.N.I.C.X. Sonic escapes with ease, but S.O.N.I.C.X. repeatedly tries to ruin his reputation. Meanwhile, the animals take on Eggman in his various schemes—including becoming a wrestler and creating a circus—to keep the Emeralds from him. In the final issue, a crossover with the continuity of the main comic series, that continuity's Metal Sonic appears and allies with Eggman to defeat Sonic, but that continuity's version of Shadow steps in and warps himself and Metal Sonic to another dimension, leading into the events of the first issue of Sonic Universe.

Video games

In 2003, McDonald's packaged five different single-button dedicated console games, mostly based on various sports, with Happy Meals to promote Sonic X: two featuring Sonic and one each for Tails, Knuckles, and Shadow. Another Happy Meal game based on Big the Cat fishing arrived the following year.

LeapFrog Enterprises released a Sonic X educational math game for its Leapster handheld game console; it was released in 2005 in North America and 2007 in Europe. The game stars Sonic and Chris, who must rescue Tails, Amy, and Knuckles from Eggman. It is a fast-paced platform/action game in which Sonic runs and jumps through levels and destroys Eggman's robots along the way. Periodically, Sonic must answer math questions to continue. The game features three levels, each with its own math concepts: the city Station Square (sequencing, counting in increments); Angel Island, the home of the Master Emerald (addition), and Eggman's base (subtraction). There are also math-based minigames unrelated to the levels to supplement these skills.

Trading card game

Score Entertainment created a Sonic X collectible card game for two players released in 2005. Players battle for Chaos Emeralds, whoever gets three first wins. Each turn, both players lay out five cards face-down and flip over one at a time; whichever card has a lower number value is eliminated. Eliminating the other player's cards and combining the special abilities of one's own cards allows one to score rings; whichever player has the most rings at the end of the turn wins an Emerald. As the game does not emphasize collecting rare cards, a few booster packs are enough to build a competent deck. KidzWorld gave a positive review, praising its ease of learning, low cost, and inherent strategy, but also noting that it feels more like a generic card game with Sonic characters than like a wholly Sonic-based product.

Popularity and cultural impact

The show was quite popular in the United States, France, Indonesia and Malaysia, consistently reaching the number-one position in its timeslot in both countries. By 2007, it was TMS' best-selling anime in the non-Japanese market, despite that the third season didn't air in Japan until 2020, and it inspired TMS to focus on properties that would sell well outside Japan. In April 2009, a six-year-old Norwegian boy named Christer pressed his parents to send a letter to King Harald V of Norway to approve his name being changed to "Sonic X." They allowed Christer to write it himself but did not send it until he badgered them further, and the king responded that he could not approve the change because Christer was not eighteen years old. Extending over a decade past the show's initial release, the show has spawned internet memes and the phrase "gotta go fast,” the title of the song that plays in the opening and closing sequence, has been used in the titles of video game periodical articles to represent the Sonic series and other fast-paced video games.


Sonic X: Original Soundtrack
Soundtrack album by
Sonic X
Released March 3, 2004 (Japan)
March 6 , 2005 (US)
Recorded 2003 (Japan)
2004 (US)
Length 1:06:59 (Japan)
1:07:47 (US)
Language Japanese
Label Wave Master Entertainment

Sonic X: Original Soundtrack is the soundtrack the series of same name, was released in Japan on March 3, 2004 by Wave Master Entertainment.

All music composed by Yoshihiro Ike, except where noted.

No. Title Performer(s) Length
1. "Sonic Drive" (TV version; lyrics by Takeshi Aida, music by Cher Watanabe) Hironobu Kageyama
Hideaki Taketori
2. "Sonic's Fight" (from Episode 1)   2:16
3. "Eggman" (from Episode 1)   1:55
4. "Sonic" (from Episode 1)   2:05
5. "The White Flower On Top of The Hill" (from Episode 16)   1:00
6. "Sonic's Solution" (from Episode 2)   1:02
7. "Eggman Robô" (from Episode 21)   1:07
8. "Eggman Machine" (from Episode 33)   2:44
9. "Encounter with Chris" (from Episode 1)   1:26
10. "The Extravagant Appearance of Mom and Dad" (from Episode 6)   0:48
11. "Shadow (1)" (from Episode 34)   1:24
12. "Super Sonic" (from Episode 32)   0:28
13. "Shadow (2)" (from Episode 34)   1:42
14. "Amy's Hike" (from Episode 5)   1:01
15. "Egg Fort Launch" (from Episode 20)   1:28
16. "X-Tornado" (from Episode 8)   1:05
17. "Battle" (from Episode 28)   1:27
18. "All Right!" (from Episode 14)   1:53
19. "The Ghost's Tango" (from Episode 19)   2:39
20. "Amy's Hammer" (from Episode 19)   0:38
21. "Mysterious Thief Rouge" (from Episode 11)   2:43
22. "S-Team (1)" (from Episode 1)   2:30
23. "Hawk (Chinese Compilation)" (from Episode 17)   0:40
24. "Eggman's African Compilation" (from Episode 18)   0:47
25. "Adventure" (from Episode 14)   1:01
26. "Helen's Dinner" (from Episode 14)   1:30
27. "X-Tornado Battle Compilation" (from Episode 29)   1:07
28. "The Master Emerald" (from Episode 29)   0:58
29. "Chaos" (from Episode 28)   1:30
30. "Family" (from Episode 4)   1:31
31. "S-Team (2)" (from Episode 31)   1:50
32. "The Thorndyke Family" (from Episode 14)   0:38
33. "Tornado Going Round and Round" (from Episode 5)   2:00
34. "GUN" (from Episode 33)   1:32
35. "Coalescence" (from Episode 26)   0:37
36. "Dark Eggman" (from Episode 24)   0:53
37. "Mi-Ra-I (Future)" (End credits; written by Kazuyoshi Baba) Run&Gun 4:25
38. "Sonic Drive" (Full Version; lyrics by Takeshi Aida, music by Cher Watanabe) Hironobu Kageyama & Hideaki Taketori 3:46
39. "Sonic Drive" (Only version; lyrics by Takeshi Aida, music by Cher Watanabe) Hironobu Kageyama 3:46
40. "Sonic Drive" (Only version; lyrics by Takeshi Aida, music by Cher Watanabe) Hideaki Taketori 3:46
Total length:

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See also

Kids robot.svg In Spanish: Sonic X para niños

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