The Best Episodes of Sonic X

Last Updated: Nov 1, 2018

A slight malfunction causes Chaos Control, and sends Sonic the Hedgehog to Earth. While there, Sonic meets Chris Thorndyke, who aids at collecting the Chaos Emeralds, so Sonic and friends can go home.

The Beginning of the End

#1 - The Beginning of the End

Season 2 - Episode 23

It is discovered that Earth and Mobius are merging. If they join together completely, then time will stop forever. It is decided that Sonic and co. must return home through chaos control. This upsets Chris, who runs off to confront Eggman thinking it is one of his tricks to get rid of Sonic.

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2 votes
Showdown in Space

#2 - Showdown in Space

Season 2 - Episode 12

As the clock ticks for Space Colony Arc's crash, Sonic, Eggman, Bokkun, Dekkun, Knuckles, Tails, and Rouge try to get the Master Emerald to the power source, The Chaos emeralds. Meanwhile, Shadow is faced by Chris, who reminds him of Maria's Wish, to help Mankind. As Sonic, Knuckles and the two robots reach the power source, a recreated temple of Chaos, a robot/organic beast attacks the crew, thinking of a way past, Shadow offers to distract the beast long enough to stop the colony. Will they succeed? Watch and find out!

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3 votes
H2Whoa

#3 - H2Whoa

Season 3 - Episode 3

The Blue Typhoon is now on its way to a new adventure. Knuckles thinks that a Chaos emerald is nearby due to the Master Emerald's reactions. A planet is located and according to Sonic's guidebook, this is a dry planet. However, they find out that it's covered by water. Accidentally separated of the others, Chris & Sonic arrive to a Metarex base, where several Metarex await them. The fight is engaged, but Chris, wanting to help his friend, is unable to punch a Metarex without hurting himself. Eventually, Sonic is captured and Chris is able to escape. Informing Tails of the situation, Chris wants to rescue Sonic with the X-Tornado, but Tails insists that Chris won't be capable of his own. This leads Chris to question himself about his utility in their mission. Finally, Amy and Tails succeed to rescue Sonic with the X-Tornado, but Metarex attack the plane and by accident, Sonic falls straight toward the water. Chris arrives with another plane and saves Sonic with his own invention: hover shoes. The Metarex are finally defeated, the water retires from the planet and the Dark Blue Chaos Emerald is found.

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2 votes
Cosmic Crisis

#4 - Cosmic Crisis

Season 3 - Episode 2

Chris arrives in Sonic's world as his 12-year-old self. He makes contact with everyone, but Sonic faints shortly after. Apparently, the recent battle tailed him off. Back to Cream's house, Cosmo explains the Metarex goals and the consequences of the planet egg's removal. Cosmo also admits that she's the only survivor from her group, which was eliminated by the Metarex. Everybody (except for Knuckles, who's suspicious of her) agrees that the Metarex must be stopped and they decide to go into space to destroy the Metarex and to find the lost Chaos Emeralds. Luckily for them, Tails has just finished to build his new invention: a big flying fortress called the Blue Typhoon. Unfortunately, his new ship used to be powered by the Chaos Emeralds. Chris thinks that they could use the Master Emerald. Knuckles disagrees, but with some female persuasion, he finally agrees. At the same time, another Metarex is sent to the planet in order to destroy Sonic and the Blue Typhoon. A fight engages between the Metarex and Sonic & Knuckles. With the help of the Typhoon's primary weapon, the "Sonic Power Cannon" ("Sonic Driver" in the original Japanese version), the Metarex is destroyed. The Blue Typhoon takes off, but it is followed by Dr. Eggman and Rouge.

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2 votes
Defective Detectives

#5 - Defective Detectives

Season 2 - Episode 13

The Chaotix Detectives made up of Vector the Crocodile, Espio the Chameleon, and Charmy the Bee have arrived in Station Square. Their goal is to find Cream for a specific reason, even when they think Sonic stole her. Meanwhile, Dr. Eggman rebuilds half the moon (after part of it was destroyed last episode) into the Eggmoon and claiming to Sonic that he has become reformed. Is this true? And will the others know why the Chaotix Detectives have come for Cream.

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2 votes
A New Start

#6 - A New Start

Season 2 - Episode 26

All the animals (except Sonic) are now back at their original world. Amy is having dinner with Cream and Cream's mom at their house, and Knuckles and Rouge are talking in the woods. Suddenly, Eggman hatches a plan, and Tails gets in his plane to stop him. Tails, is almost beaten, but luckily an old friend, Sonic, as Super Sonic, has finally returned, and pops in, saves him and beats Eggman. Meanwhile in Chris' world years have passed. Chris is now a adult. Suddenly he starts remembering all the fun, and the struggles he had with Sonic as a kid.

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3 votes
Friends 'Til the End

#7 - Friends 'Til the End

Season 2 - Episode 25

After Chris stops him from going home, Sonic goes on a long journey with Chris, who decides to run away. However, his parents want him back and they soon go looking for him. Will Nelson and Linsey find Chris or has he run away forever?

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2 votes
Running Out of Time

#8 - Running Out of Time

Season 2 - Episode 24

This episode tells of what happens before Sonic & co. leave for home. Everyone is sad that they'll leave, especially Chris. There are many flashbacks to the first two episodes until they leave. Eggman, Cream, Amy, and Knuckles leave, but at the last second, Chris shuts the portal to Sonic's world, leaving Sonic trapped on Earth. So begins the (not so) long journey of Chris and Sonic...

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2 votes
An Enemy In Need

#9 - An Enemy In Need

Season 3 - Episode 4

After saving the planet in the former episode, Sonic and his friends are thanked in a feast. Dr. Eggman is watching the scene and he thinks about his next scheme to take away the Chaos emerald. Bokkun suggests a plan to Eggman, but the evil doctor doesn't notice that it has been elaborated by Rouge, who made her way to the Egg Carrier. Eggman soon finds Knuckles and he tries to persuade him that he tired to be a bad person and he wishes to leave the planet by using a Chaos Emerald. Knuckles believes him and he finds the others in order to take the Emerald they just found and to give it to Eggman. Sonic disagrees and both of them engage in a fight. Taking advantage of the situation, Eggman almost takes the Emerald, but he is stopped by Amy and the others. Then, a giant robot controlled by Bocoe and Decoe appears suddendly and it captures Cosmo. Eggman summons Sonic to give him the Emerald and he would let Cosmo go away. But at the same moment, a frog-shaped Metarex rises from the ground and it grabs the Emerald. Eggman let Cosmo go and he engages a fight against the Metarex. However, Eggman is defeated. It's Sonic's turn to fight the Metarex and, with the help of the Sonic Power Cannon and a Chris' trick, the blue hedgehog is victorious. The episode ends as Knuckles apologizes for being fooled by Eggman.

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2 votes
The Volcanic Venture

#10 - The Volcanic Venture

Season 2 - Episode 22

With Eggman under the Volcano Sonic, Rouge, Knuckles, Tails and Chris follow him. But is there something hidden from the world there?

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2 votes
Map of Mayhem

#11 - Map of Mayhem

Season 2 - Episode 21

Eggman, Decoe, and Bocoe hatch a plan to destroy the Equator with a giant Robot, and it's up to Sonic, Tails, Knuckles, Amy, Chris, and Rouge to stop him.

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2 votes
A Wild Win

#12 - A Wild Win

Season 2 - Episode 20

The fight tournament draws to a close with Emerl being the winner. However, Emerl starts going beserk after holding the Chaos Emerald and begins to destroy everything in his path. When Amy, Sonic, Knuckles, Tails, and Rouge are unable to stop it, Cream shows up to confront her robotic friend. Will she be able to talk Emerl into ceasing his uncontrollable mayhem, or will she have no choice but to fight and shut him down?

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2 votes
Prize Fights

#13 - Prize Fights

Season 2 - Episode 19

A tournament at a nearby stadium is being held, with a red Chaos Emerald as the prize. Sonic, Tails, Knuckles, Rouge, Amy, Emerl, and several of their Station Square friends show up to participate in this outstanding event...

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2 votes
A Date to Forget

#14 - A Date to Forget

Season 2 - Episode 16

Sonic is supposed to have a date with Amy, but he doesn't show up. So instead, she has a date with Sam Speed. Meanwhile on Eggman's old island base, Bokkun finds one of Prof. Gerald Robotnik's other creations: Emerl & tries to tell him to defeat Sonic. Bokkun opens the door, & he & Emerl walk to the tank. Sonic is trying to get to his date with Amy, but Bokkun stops him to free Eggman, Decoe & Bocoe from jail with the new tank. Can Sonic stop Bokkun & Emerl from freeing Eggman? Or will he be late for his date with Amy?

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2 votes
Sonic's Big Break

#15 - Sonic's Big Break

Season 2 - Episode 9

Under a new alliance, Shadow, Rouge, and Eggman carry out their latest plan. As Eggman launches an attack on Prison Island, Rouge breaks in to steal three Chaos Emeralds, and Shadow sneaks in to plant a bomb which will destroy the island. As Chris and Tanaka use a small boat to get to Prison Island, Tails and Amy arrive at the island in the X Tornado to rescue Sonic. When Amy accidently runs into Shadow, Eggman comes in to finish her off but Tails jumps in and fights with Eggman. Amy goes in and frees Sonic, who then finds Shadow. The two hedgehogs battle it out. However, problems arise. Rouge gets trapped in the compound, and Shadow, having another flashback of Maria, breaks away from the battle to go save her. When he gets there, Chris is there too, and pleads with Shadow because Sonic wound up taking the blame for his actions. With less than 10 seconds left before the bomb explodes, Shadow activates Chaos Control, enveloping Rouge and Chris in its energy. The bomb explodes, destroyi

star 9.33
3 votes
The Cosmic Call

#16 - The Cosmic Call

Season 3 - Episode 1

In the episode's opening, Super Sonic is fighting against a mysterious robot. Super Sonic is unable to defeat him and he sends the Chaos Emeralds away to avoid his opponent to take them from him. Without the Emeralds, Sonic loses his energy and he falls to his planet. Another robot (a Metarex) follows him. Back on the planet, Tails, Amy, Cream & Cheese watch the sky and assist to a meteoric shower. However, a space ship crashes near them, carrying a strange alien girl named Cosmo. After introducing themselves, they are surprised by the arriving Metarex who starts destroying the forest with laser beams. Tails, accompanied by Cosmo, starts fighting it with the X-Tornado and he's soon joined by Knuckles. Sonic (who was rescued by Dr. Eggman) arrives but they can't beat the Metarex. The last Metarex was able to finish his duty: which was to remove the "planet egg". Cosmo explains that the planet egg "is the lifeforce that sustains their world". Sonic, Tails, and Knuckles make a last effort to save the Planet Egg, but the Meterex escapes. Cosmo then tells Sonic that he is the final hope to save the galaxy. At the same moment, Chris (who is now 18) completes his new machine that will transport him to Sonic's world. It works, but Chris arrives in his 12-year-old body.

star 9.20
5 votes
So Long Sonic

#17 - So Long Sonic

Season 3 - Episode 26

The episode starts off with Vanilla stopping by the Chaotix Detective Office to thank the Chaotix for all that they did for her and Cream. Amy and Cream then bring a whole bunch of snacks to Tails to try and cheer him up. (Note: This entire first part, almost four minutes long, was not shown in the English dub of the episode.) Chris then flashes back to the point just when the planet with Cosmo on it was being destroyed. Lucas is seen following Hertia to peace. Suddenly, the planet begins to expend all of its energy. Punching Sonic out of the way (which looked very painful for Sonic), Shadow uses the last of his energy to perform Chaos Control to stop time, giving everyone else a chance to escape. Eggman then worries that Shadow may not have survived the Chaos Control he did to save everyone, and he begins to feel some remorse for Shadow. Meanwhile, Sonic approaches Tails with only a seed from Cosmo. Tails, already upset about losing her, finally falls into Sonic's arms, crying as they fly away. Back on their homeworld, Chris and Knuckles have a little discussion about what's next for Chris, and they fall along the lines of where Chris's home would be now that he can't go back. Rouge is seen in Eggman's ship staring at Shadow's pod. After a run-in with Eggman, Rouge suspects that he knows something about Shadow's whereabouts. Eggman commented on Rouges breasts and was smacked, however this was cut out in the English dub. Near the end of the episode, Eggman shows Chris an egg-shaped pod that will take him home, but there's a catch: Chris only has three minutes to return home, or else he could be stuck in Sonic's world! Chris has no time to say goodbye to his friends, just as Eggman planned. Chris then leaves Sonic's universe via Eggman's pod. Once Chris is gone from sight, Eggman says that with Chris out of the way, he can continue in his creation of the Eggman Empire. Sonic's last words were "I won't forgive you, Eggman!" ("Life never stays slow around here for long, thank goodness! Watch out Eggman, I'm coming at'cha full speed!" in the English dub). We then see a pot with a seed (apparently the one Sonic found) in it. The episode ends as the Egg pod with Chris in it flies out into space and then twinkles out. Chris was supposedly sent home.

star 9.00
5 votes
Pure Chaos

#18 - Pure Chaos

Season 2 - Episode 1

What has happened? Two huge islands formed on the shores of Station Square, one of them being Angel Island, which is falling! Chaos Control apparently brought Sonic's world to Station Square, leaving Chris happy but Eggman to formulate a way to destroy the city. Next, Eggman is instructing his E-100 team to set out and destroy things. Even more terrible, Chaos is loose on Station Square streets reeking havoc! The beginning of the Sonic Adventure adaptation has begun!

star 9.00
4 votes
Unfair Ball

#19 - Unfair Ball

Season 1 - Episode 10

Tails finds another Chaos Emerald, but in order to get it Sonic and pals(including Tails) must win a very odd baseball game against Eggman and his robot's. Or is Eggman just tricking them so he can get all the loot even if he doesn't win?

star 8.77
13 votes
Trick Sand

#20 - Trick Sand

Season 3 - Episode 8

The episode opens with a dream from Chris, where he remembers the events of Space Colony ARK and the loss of Shadow. He is awakened by Tails who tells him he has just found the signal from a Chaos Emerald. Inside the Crimson Egg, Rouge returns to the secret room she has just discovered and she spots the Red Chaos Emerald which is powering the strange capsule. She tries taking the emerald, but she launches an alarm and at the same time, she discovers that Shadow is currently hibernating inside the capsule. She's found out by Dr. Eggman. The Blue Typhoon follows the Chaos Emerald's signal to a dark, abandoned planet. Sonic, Amy and Knuckles search inside an old castle, while Chris and Cosmo look inside an ancient colony. Sonic's group quickly notices that the castle is a trap. In fact, it's an illusion created by a Metarex. This Metarex suddendly turns the castle into a sandtrap and almost catches Sonic. The Metarex attacks Sonic's group and Chris, who is in the Hyper Tornado. Sonic tries to counter-attack, but he is not able to beat the Metarex. Chris tries his luck and he fails too. At the same moment, in the Egg Carrier, Shadow awakens and he teleports himself to the fight place. He easily defeats the Metarex and he shows his presence to everybody. He looks at Chris, who just said Shadow's name, and he disappears with the Purple Chaos Emerald.

star 8.75
4 votes
Shadow Knows

#21 - Shadow Knows

Season 2 - Episode 8

After Shadow steals one of the Chaos Emeralds, Sonic is blamed for the crime and finds himself on the run from the law. As he does so, he runs into Shadow, and realizes why he's suddenly become a wanted criminal, because Sonic and Shadow look very much alike. As the two collide, Shadow reveals his ability to harness the power of the Chaos Emerald to use Chaos Control, which gives him an edge over Sonic.

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4 votes
Emerald Anniversary

#22 - Emerald Anniversary

Season 1 - Episode 23

Rouge and Topaz are 'hanging out' when Rouge spots some beautiful jewelry in the store across the street, but Topaz blurts out 'Thief!' just to anger Rouge. Then Nelson, Chris' dad buys a expensive ring in the store, because it's his anniversary with Lindsay, Chris' mom. Meanwhile, at the Thorndyke's Mansion, Sonic, Tails, Amy, Cream, and Cheese recieve a phone call from Nelson, telling them to go to his office. But Sonic gets a weird reaction from his Chaos Emerald that he's holding, and it turns out that the 'ring' is actually a Chaos Emerald! Knuckles sees the reaction and goes straight to help the gang. But in the shadows Eggman sees the reaction too and decides to jump in with his giant robot to steal the Chaos Emerald for himself!

star 8.75
4 votes
That's What Friends are For

#23 - That's What Friends are For

Season 1 - Episode 14

After destroying Eggman's base Sonic has become a huge celeberity and the President invites him and his friends to a party but Sonic has promised his new friend Helen that he'd take her to a mountain because her dad never did. Now the president is trying to catch Sonic and take him to the party and Sonic and Helen are on the run!!

star 8.70
10 votes
Mission: Match-Up

#24 - Mission: Match-Up

Season 3 - Episode 13

The Blue Typhoon encounters the Chaotix ship. Once aboard the Typhoon, Vector and Espio explain that they lost themselves in space and that their radio got broken. Tails agrees to fix their ship and he warns them that he doesn't want any trouble on the Typhoon. Tails begins his work when Cosmo brings him lunch. She reveals that she's planning a surprise for everybody. The Chaotix watch the scene and Vector notices the growing relationship between Tails and Cosmo. In order to thank Tails for fixing his ship, Vector decides to help him winning Cosmo's heart. At the same time, Tails unintentionally discovers Cosmo's surprise : she plans to throw a party on the ship. Cosmo is disappointed because it won't be a surprise for Tails now, but the little fox tells her that she won't be able to prepare everything all by herself. Also on the scene, the Chaotix propose their help and Vector takes it as an opportunity to throw his match-up plans. However, they all fail one by one. Espio believes that their relationship should develop naturally. After finishing the preparations, the Chaotix go get everybody to the party room when they cross Knuckles' path. Knuckles was used against his will in one of Vector's plans and he decides to take his revenge. Accidentally, they end up in the party room and they ruin everything. Arriving on the scene, Tails and Cosmo are disappointed, but Sonic says it's no problem and that they'll put everything back. He also thanks Cosmo for her party idea. The episode ends with Cosmo and Tails watching the stars outside in space.

star 8.67
3 votes
Shadow World

#25 - Shadow World

Season 2 - Episode 10

Sonic, Tails, Knuckles & Amy manage to break into Eggman's base, undetected. At least they THINK they've entered undetected. Bokkun finds them & calls on the Egg Golem! They board the space shuttle, but their adventure has just begun...

star 8.67
3 votes