Sonic Underground

Sonic Underground (French: Sonic Le Rebelle) is an animated television series co-produced by Alphanim and Nelvana. It is the third Sonic the Hedgehog animated series, and also the only one produced by Alphanim. It follows a main plot separate from all other Sonic the Hedgehog media, where Sonic has two siblings, Sonia and Manic, that are collectively part of a royal family who were forced to separate from their mother, Queen Aleena, upon Doctor Robotnik's takeover of Mobius due to a prophecy told by the Oracle of Delphius. Along the way, they encounter other resistance groups against Robotnik as well as powerful artifacts that could wreak havoc on the world, all the while searching for their long-lost mother Queen Aleena.
The series first aired in France from January to May 1999 on France 3, and then premiered in the United Kingdom in May 1999 on ITV on the GMTV strand and finally in the United States on CBS from August 1999 to October 2000. The show ran only for one season consisting of forty episodes. It was the first Sonic the Hedgehog television series to be sold on the iTunes Store.
== Plot ==
The show takes place in a separate canon and continuity than any other Sonic the Hedgehog media. Queen Aleena, the former ruler of Mobius, was overthrown by Dr. Robotnik and his bounty hunter lackeys Sleet and Dingo. Robotnik seized control of the planet and forced Queen Aleena into hiding. To preserve the dynasty, Queen Aleena separated her three children: Sonic, Manic, and Sonia after the Oracle of Delphius told her of a prophecy, proclaiming that one day, Queen Aleena would reunite with her children to form the "Council of Four," and overthrow Robotnik. Meanwhile, Dr. Robotnik did his best to set up an autocratic government, and legally turned anyone who stood against him into robots devoid of free will, and forced the nobles into paying large amounts of money to him as tribute.
When Sonic, Manic, and Sonia grew up, the Oracle of Delphius revealed the prophecy to them. After that, Sonic, Manic, and Sonia decided to go on a quest, searching throughout Mobius for Queen Aleena. Dr. Robotnik, with the assistance of the Swat-Bots and his bounty hunters Sleet and Dingo, tries constantly to capture the royal hedgehogs and prevent the prophecy from being fulfilled.
The Oracle of Delphius has assigned the three siblings powerful "medallions" that can change into musical instruments, and can also be used as weapons. Sonic's medallion is an electric guitar, Sonia's medallion is a keyboard that functions as a smoke machine, and Manic's medallion is a drumset that can be used as an "earth controller" with cymbals that can deflect laserfire. All of the medallions can be used as laser guns. The three use the amulets not only to fight Robotnik's forces but also as instruments for their underground rock band, "Sonic Underground."
== Characters ==
=== Main ===
* Sonic (voiced by Jaleel White, singing voice by Sam Vincent) - The eldest sibling and lead singer of many songs performed by the Sonic Underground. His medallion turns into a guitar, which can fire laser blasts. As fast as the speed of sound, Sonic can easily outrun danger. He is a big fan of chili dogs, causing him to be a bit overweight. He also has hydrophobia, being terrified of water as he cannot swim. Sonic wears anti-gravity sneakers that allow him to hover over the ground while running.
* Sonia (also voiced by Jaleel White, singing voice by Stevie Vallance) - The only female hedgehog member of the Sonic Underground and the sister of Sonic and Manic. Unlike her brothers, she was raised by an aristocratic foster family, giving her an upper class mentality. She hates getting dirty, is skilled at gymnastics and karate, and possesses superhuman strength, a photographic memory, and the ability to spin in a cyclonic manner. Her medallion turns into a keyboard, which can fire laser blasts from one end, or create a pink mist when the keys are played. Sonia has a pink motorcycle which can travel as fast as Sonic's running and Manic's hover board (it was destroyed in the 36th episode). She also is the one that does research on Robotnik's plans and provides the technological innovation for the Sonic Underground. Of the siblings, Sonia is the only one to be seen involved in any romance, displaying feelings for her childhood friend Bartleby, despite his snobbishness, as well as other men encountered in her travels. Among these is Knuckles the Echidna, whom she develops an attraction to during the series' Flying Fortress saga.
* Manic (also voiced by Jaleel White, singing voice by Tyley Ross) - The youngest sibling. He is a calculating and sarcastic hedgehog that was raised by thieves, and is a master of their trade. When Manic met his siblings, they disapproved of his thieving tendencies, but his skills as a lock-pick were greatly appreciated. Manic possesses neither Sonic's speed nor Sonia's spin-attack, thus making him the only member of the Sonic Underground who relies on entirely on his medallion for superpowers of his own. Despite his lack of superpowers, his thieving skills proves himself extremely useful to the group from time to time. Manic is the drummer of the Sonic Underground. His medallion turns into drums, which can cause earthquakes; the Oracle of Delphius claims that his drums are the most powerful instruments of the three. He also has a hover board that is as fast as Sonic's running and Sonia's motorcycle. His medallion's string is blue.
* Dr. Robotnik (voiced by Garry Chalk) - The evil dictator of Mobius, renamed Robotropolis under his rule, having conquered it with his army of Swatbots. He captures and roboticizes anyone who opposes him, transforming them into robotic servants.
** Sleet (voiced by Maurice LaMarche) - One of Robotnik's canine bounty hunters. This cunning wolf leads the bumbling Dingo about on missions to capture the hedgehogs. Sleet has a morphing device that can transform Dingo into anything he wishes. He is constantly being crushed by Dingo and is usually the one who suffers the most from their combined failures.
** Dingo (voiced by Peter Wilds) - One of Robotnik's canine bounty hunters and Sleet's partner. Dingo is a huge, muscle-bound blonde dingo and is also very ignorant. He is partially roboticized in his hands and his left leg from the knee down, which is never explained. He has a relentless crush on Sonia, but remains fiercely loyal to Sleet.
** Swatbots (voiced by Maurice LaMarche) - The robotic foot soldiers of Dr. Robotnik.
=== Recurring ===
* Queen Aleena Hedgehog (voiced by Gail Webster) - The mother of the Sonic Underground group and former ruler of Mobius before Robotnik's takeover. She had to give them up in order for the prophecy to become true. She spends the series on the run from her own children, until the time is right to reveal herself. Her character has many allies, including the Oracle of Delphius and Knuckles. She also does a bit of narrating in the start of every episode.
* Knuckles (voiced by Brian Drummond) - An echidna who is the guardian of one of the Chaos Emeralds and Angel Island, and an acquaintance of Queen Aleena's. He is very protective of his island home, and has set many traps about the island. He has a pet dinosaur called Chomps, and like his game incarnation is shown to be somewhat gullible. His great-grandfather Athair warns him that he must stay on the island in order to play his part in the freedom of Mobius. He turned against the Hedgehogs twice - first being tricked into thinking they were thieves and later thinking that it was the only way to save their planet - but came around and worked with them against the threat of Robotnik and his henchmen. During the Flying Fortress arc, he showed signs of a growing affection for Sonia, including a particular guilt over the prospect of betraying her.
* Oracle of Delphius (voiced by Maurice LaMarche) - An odd, wart-covered in a cloak that resembles a scaly anteater. The Oracle prophesied that when Robotnik invaded Mobius, Aleena and her children would form the Council of Four to overthrow Robotnik and free Mobius. The Oracle lives in a cave somewhere in a cold region of Mobius, and is quite good at making chili dogs. He is named after the Oracle at Delphi.
* Sir Bartleby Montclair - A posh, cowardly mink who is one of Robotropolis' richest aristocrats. Bartleby was Sonia's fiancé. He dislikes Dr. Robotnik and is often forced to fund Robotnik's schemes – although in secret he still supports Aleena. He speaks with an upper-class English accent.
* Cyrus (voiced by Ian James Corlett) - Cyrus is a lion and a technician for the Freedom Fighters. He is an old friend of Sonic. In his first appearance he was working as a spy for Robotnik, but quit upon discovering that the Freedom Fighters' Sanctuary was a hideout for their children. Cyrus's father was roboticized.
* Trevor - Trevor is a mouse who is a friend of the royal siblings and Cyrus. He dresses like a hippie. Trevor is an ace pilot and helps build and fix mechanical equipment.
== Episodes ==
No. 	English title
French title 	Episode song 	Written by 	France air date
(France 3) 	U.S. air date
(CBS Kidshow)
1 	"Wedding Bell Blues"
"L'union fait la farce" 	When Tomorrow Comes 	Ben Hurst and Pat Allee 	6 January 1999 	4 October 1999
Dr. Robotnik plots to become the king of Mobius. His first attempt was to marry Queen Aleena, which did not work due to the limited amount of money Robotnik had. His second attempt was to adopt Queen Aleena's daughter Sonia. In order to do this, he had Sleet and Dingo capture all of the hedgehogs and give Sonia to Robotnik so he could adopt her. Robotnik was almost successful until Queen Aleena demanded Robotnik not to adopt her. 	Dr. Robotnik plots to become the king of Mobius. His first attempt was to marry Queen Aleena, which did not work due to the limited amount of money Robotnik had. His second attempt was to adopt Queen Aleena's daughter Sonia. In order to do this, he had Sleet and Dingo capture all of the hedgehogs and give Sonia to Robotnik so he could adopt her. Robotnik was almost successful until Queen Aleena demanded Robotnik not to adopt her. 	Dr. Robotnik plots to become the king of Mobius. His first attempt was to marry Queen Aleena, which did not work due to the limited amount of money Robotnik had. His second attempt was to adopt Queen Aleena's daughter Sonia. In order to do this, he had Sleet and Dingo capture all of the hedgehogs and give Sonia to Robotnik so he could adopt her. Robotnik was almost successful until Queen Aleena demanded Robotnik not to adopt her. 	Dr. Robotnik plots to become the king of Mobius. His first attempt was to marry Queen Aleena, which did not work due to the limited amount of money Robotnik had. His second attempt was to adopt Queen Aleena's daughter Sonia. In order to do this, he had Sleet and Dingo capture all of the hedgehogs and give Sonia to Robotnik so he could adopt her. Robotnik was almost successful until Queen Aleena demanded Robotnik not to adopt her. 	Dr. Robotnik plots to become the king of Mobius. His first attempt was to marry Queen Aleena, which did not work due to the limited amount of money Robotnik had. His second attempt was to adopt Queen Aleena's daughter Sonia. In order to do this, he had Sleet and Dingo capture all of the hedgehogs and give Sonia to Robotnik so he could adopt her. Robotnik was almost successful until Queen Aleena demanded Robotnik not to adopt her. 	Dr. Robotnik plots to become the king of Mobius. His first attempt was to marry Queen Aleena, which did not work due to the limited amount of money Robotnik had. His second attempt was to adopt Queen Aleena's daughter Sonia. In order to do this, he had Sleet and Dingo capture all of the hedgehogs and give Sonia to Robotnik so he could adopt her. Robotnik was almost successful until Queen Aleena demanded Robotnik not to adopt her.
2 	"To Catch a Queen"
"Échec à la reine" 	Have You Got the 411? 	Doug Booth 	10 January 1999 	31 August 1999
Argus, the former captain of the Queen's guard, arranges a secret meeting with her but he is soon intercepted by Robotnik's bounty hunters, Sleet and Dingo, who have every intention of feeding the soldier to the Roboticizer. Then Sonic, Sonia, and Manic attempt to rescue him. 	Argus, the former captain of the Queen's guard, arranges a secret meeting with her but he is soon intercepted by Robotnik's bounty hunters, Sleet and Dingo, who have every intention of feeding the soldier to the Roboticizer. Then Sonic, Sonia, and Manic attempt to rescue him. 	Argus, the former captain of the Queen's guard, arranges a secret meeting with her but he is soon intercepted by Robotnik's bounty hunters, Sleet and Dingo, who have every intention of feeding the soldier to the Roboticizer. Then Sonic, Sonia, and Manic attempt to rescue him. 	Argus, the former captain of the Queen's guard, arranges a secret meeting with her but he is soon intercepted by Robotnik's bounty hunters, Sleet and Dingo, who have every intention of feeding the soldier to the Roboticizer. Then Sonic, Sonia, and Manic attempt to rescue him. 	Argus, the former captain of the Queen's guard, arranges a secret meeting with her but he is soon intercepted by Robotnik's bounty hunters, Sleet and Dingo, who have every intention of feeding the soldier to the Roboticizer. Then Sonic, Sonia, and Manic attempt to rescue him. 	Argus, the former captain of the Queen's guard, arranges a secret meeting with her but he is soon intercepted by Robotnik's bounty hunters, Sleet and Dingo, who have every intention of feeding the soldier to the Roboticizer. Then Sonic, Sonia, and Manic attempt to rescue him.
3 	"Mobodoon"
"Mobourg-Latour" 	I've Found My Home 	Peter Hunziker 	13 January 1999 	1 September 1999
While evading Sleet and Dingo, the hedgehogs find themselves in a town completely untainted by Robotnik where Sonic and his siblings find the people to be nice, and the food is free. After using the Power Stone, the siblings discover that this is where they were born. Manic starts to become attached to the place and reports that this is where he wants to stay. 	While evading Sleet and Dingo, the hedgehogs find themselves in a town completely untainted by Robotnik where Sonic and his siblings find the people to be nice, and the food is free. After using the Power Stone, the siblings discover that this is where they were born. Manic starts to become attached to the place and reports that this is where he wants to stay. 	While evading Sleet and Dingo, the hedgehogs find themselves in a town completely untainted by Robotnik where Sonic and his siblings find the people to be nice, and the food is free. After using the Power Stone, the siblings discover that this is where they were born. Manic starts to become attached to the place and reports that this is where he wants to stay. 	While evading Sleet and Dingo, the hedgehogs find themselves in a town completely untainted by Robotnik where Sonic and his siblings find the people to be nice, and the food is free. After using the Power Stone, the siblings discover that this is where they were born. Manic starts to become attached to the place and reports that this is where he wants to stay. 	While evading Sleet and Dingo, the hedgehogs find themselves in a town completely untainted by Robotnik where Sonic and his siblings find the people to be nice, and the food is free. After using the Power Stone, the siblings discover that this is where they were born. Manic starts to become attached to the place and reports that this is where he wants to stay. 	While evading Sleet and Dingo, the hedgehogs find themselves in a town completely untainted by Robotnik where Sonic and his siblings find the people to be nice, and the food is free. After using the Power Stone, the siblings discover that this is where they were born. Manic starts to become attached to the place and reports that this is where he wants to stay.
4 	"The Price of Freedom"
"Course contre la montre" 	Money Can't Buy 	Martha Moran 	17 January 1999 	2 September 1999
Sonia, after getting dirty on one of her missions, drives to East Mobius; Sonic and Manic follow her after receiving news that Queen Aleena had been spotted there. There, Sonia is reunited with an old friend, Mindy LaTour, and her father. Mindy gives Sonia a watch. Unknown to the girls though, the timepiece is a tracking device designed by Robotnik. Sonia finds out, and soon, Mindy's estate is swarming with similar wristwatch-style robots, all being programmed to capture the hedgehogs. 	Sonia, after getting dirty on one of her missions, drives to East Mobius; Sonic and Manic follow her after receiving news that Queen Aleena had been spotted there. There, Sonia is reunited with an old friend, Mindy LaTour, and her father. Mindy gives Sonia a watch. Unknown to the girls though, the timepiece is a tracking device designed by Robotnik. Sonia finds out, and soon, Mindy's estate is swarming with similar wristwatch-style robots, all being programmed to capture the hedgehogs. 	Sonia, after getting dirty on one of her missions, drives to East Mobius; Sonic and Manic follow her after receiving news that Queen Aleena had been spotted there. There, Sonia is reunited with an old friend, Mindy LaTour, and her father. Mindy gives Sonia a watch. Unknown to the girls though, the timepiece is a tracking device designed by Robotnik. Sonia finds out, and soon, Mindy's estate is swarming with similar wristwatch-style robots, all being programmed to capture the hedgehogs. 	Sonia, after getting dirty on one of her missions, drives to East Mobius; Sonic and Manic follow her after receiving news that Queen Aleena had been spotted there. There, Sonia is reunited with an old friend, Mindy LaTour, and her father. Mindy gives Sonia a watch. Unknown to the girls though, the timepiece is a tracking device designed by Robotnik. Sonia finds out, and soon, Mindy's estate is swarming with similar wristwatch-style robots, all being programmed to capture the hedgehogs. 	Sonia, after getting dirty on one of her missions, drives to East Mobius; Sonic and Manic follow her after receiving news that Queen Aleena had been spotted there. There, Sonia is reunited with an old friend, Mindy LaTour, and her father. Mindy gives Sonia a watch. Unknown to the girls though, the timepiece is a tracking device designed by Robotnik. Sonia finds out, and soon, Mindy's estate is swarming with similar wristwatch-style robots, all being programmed to capture the hedgehogs. 	Sonia, after getting dirty on one of her missions, drives to East Mobius; Sonic and Manic follow her after receiving news that Queen Aleena had been spotted there. There, Sonia is reunited with an old friend, Mindy LaTour, and her father. Mindy gives Sonia a watch. Unknown to the girls though, the timepiece is a tracking device designed by Robotnik. Sonia finds out, and soon, Mindy's estate is swarming with similar wristwatch-style robots, all being programmed to capture the hedgehogs.
5 	"Underground Masquerade"
"Bal du duc" 	Let the Good Times Roll 	Rick Merwin 	20 January 1999 	3 September 1999
Sonic and Sonia become concerned after Manic reportedly begins to "backslide to his old ways" when he discovers a band of thieves led by Max. Sleet and Dingo are plotting to avoid giving the taxes they are collecting to Robotnik. They choose Manic to frame for a theft. 	Sonic and Sonia become concerned after Manic reportedly begins to "backslide to his old ways" when he discovers a band of thieves led by Max. Sleet and Dingo are plotting to avoid giving the taxes they are collecting to Robotnik. They choose Manic to frame for a theft. 	Sonic and Sonia become concerned after Manic reportedly begins to "backslide to his old ways" when he discovers a band of thieves led by Max. Sleet and Dingo are plotting to avoid giving the taxes they are collecting to Robotnik. They choose Manic to frame for a theft. 	Sonic and Sonia become concerned after Manic reportedly begins to "backslide to his old ways" when he discovers a band of thieves led by Max. Sleet and Dingo are plotting to avoid giving the taxes they are collecting to Robotnik. They choose Manic to frame for a theft. 	Sonic and Sonia become concerned after Manic reportedly begins to "backslide to his old ways" when he discovers a band of thieves led by Max. Sleet and Dingo are plotting to avoid giving the taxes they are collecting to Robotnik. They choose Manic to frame for a theft. 	Sonic and Sonia become concerned after Manic reportedly begins to "backslide to his old ways" when he discovers a band of thieves led by Max. Sleet and Dingo are plotting to avoid giving the taxes they are collecting to Robotnik. They choose Manic to frame for a theft.
6 	"Tangled Webs"
"Holodrame" 	Teach the Children, Light the Way 	Ben Hurst and Pat Allee 	24 January 1999 	6 September 1999
Sonic meets up with his friend Cyrus. While Sonic believes that Cyrus has joined the Freedom Fighters, he is actually working for Dr. Robotnik. When he finds out that the Freedom Fighters' "sanctuary" is for children, he destroys Robotnik's communicator. Sonic, Sonia and Manic try to get him away from Robotnik. 	Sonic meets up with his friend Cyrus. While Sonic believes that Cyrus has joined the Freedom Fighters, he is actually working for Dr. Robotnik. When he finds out that the Freedom Fighters' "sanctuary" is for children, he destroys Robotnik's communicator. Sonic, Sonia and Manic try to get him away from Robotnik. 	Sonic meets up with his friend Cyrus. While Sonic believes that Cyrus has joined the Freedom Fighters, he is actually working for Dr. Robotnik. When he finds out that the Freedom Fighters' "sanctuary" is for children, he destroys Robotnik's communicator. Sonic, Sonia and Manic try to get him away from Robotnik. 	Sonic meets up with his friend Cyrus. While Sonic believes that Cyrus has joined the Freedom Fighters, he is actually working for Dr. Robotnik. When he finds out that the Freedom Fighters' "sanctuary" is for children, he destroys Robotnik's communicator. Sonic, Sonia and Manic try to get him away from Robotnik. 	Sonic meets up with his friend Cyrus. While Sonic believes that Cyrus has joined the Freedom Fighters, he is actually working for Dr. Robotnik. When he finds out that the Freedom Fighters' "sanctuary" is for children, he destroys Robotnik's communicator. Sonic, Sonia and Manic try to get him away from Robotnik. 	Sonic meets up with his friend Cyrus. While Sonic believes that Cyrus has joined the Freedom Fighters, he is actually working for Dr. Robotnik. When he finds out that the Freedom Fighters' "sanctuary" is for children, he destroys Robotnik's communicator. Sonic, Sonia and Manic try to get him away from Robotnik.
7 	"The Deepest Fear"
"Sans peur et sans romoches" 	Face Your Fear 	Michael Edens and Mark Edens 	27 January 1999 	7 September 1999
On a trip to Port Mobius Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast Moby Deep. The hedgehogs also meet Captain Squeege who informs them of a scam in which the townspeople must rely on Robotnik for protection from the sea monster. In reality it is Robotnik who is sinking the ships. Sonic is urged to overcome his fear of water and the monster to find the truth and end the fears of the seaside town. 	On a trip to Port Mobius Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast Moby Deep. The hedgehogs also meet Captain Squeege who informs them of a scam in which the townspeople must rely on Robotnik for protection from the sea monster. In reality it is Robotnik who is sinking the ships. Sonic is urged to overcome his fear of water and the monster to find the truth and end the fears of the seaside town. 	On a trip to Port Mobius Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast Moby Deep. The hedgehogs also meet Captain Squeege who informs them of a scam in which the townspeople must rely on Robotnik for protection from the sea monster. In reality it is Robotnik who is sinking the ships. Sonic is urged to overcome his fear of water and the monster to find the truth and end the fears of the seaside town. 	On a trip to Port Mobius Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast Moby Deep. The hedgehogs also meet Captain Squeege who informs them of a scam in which the townspeople must rely on Robotnik for protection from the sea monster. In reality it is Robotnik who is sinking the ships. Sonic is urged to overcome his fear of water and the monster to find the truth and end the fears of the seaside town. 	On a trip to Port Mobius Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast Moby Deep. The hedgehogs also meet Captain Squeege who informs them of a scam in which the townspeople must rely on Robotnik for protection from the sea monster. In reality it is Robotnik who is sinking the ships. Sonic is urged to overcome his fear of water and the monster to find the truth and end the fears of the seaside town. 	On a trip to Port Mobius Sonic, Manic and Sonia are told that ships are sinking due to the Mobian sea-beast Moby Deep. The hedgehogs also meet Captain Squeege who informs them of a scam in which the townspeople must rely on Robotnik for protection from the sea monster. In reality it is Robotnik who is sinking the ships. Sonic is urged to overcome his fear of water and the monster to find the truth and end the fears of the seaside town.
8 	"Who Do You Think You Are"
"Parfums d'Orient" 	We Need to Be Free 	Ben Hurst and Pat Allee 	31 January 1999 	8 September 1999
The Sonic Underground arrive in Tashistan in search of the Queen's Journal. Sonia loses her memory and meets Raphi, one of the town's resistance. 	The Sonic Underground arrive in Tashistan in search of the Queen's Journal. Sonia loses her memory and meets Raphi, one of the town's resistance. 	The Sonic Underground arrive in Tashistan in search of the Queen's Journal. Sonia loses her memory and meets Raphi, one of the town's resistance. 	The Sonic Underground arrive in Tashistan in search of the Queen's Journal. Sonia loses her memory and meets Raphi, one of the town's resistance. 	The Sonic Underground arrive in Tashistan in search of the Queen's Journal. Sonia loses her memory and meets Raphi, one of the town's resistance. 	The Sonic Underground arrive in Tashistan in search of the Queen's Journal. Sonia loses her memory and meets Raphi, one of the town's resistance.
9 	"The Last Resort"
"Comment résister ?" 	Listen to Your Heart 	Michael Edens 	3 February 1999 	9 September 1999
While escaping from Sleet and Dingo, Sonic, Sonia, and Manic come across Lake Valley Resort. Lake Valley Resort is led by Stripes, who believes that making deals with Robotnik is safer than fighting Robotnik. When Robotnik asks if there are any new people staying at Lake Valley Resort, he reveals that Sonic and Manic are there, leaving out Sonia. 	While escaping from Sleet and Dingo, Sonic, Sonia, and Manic come across Lake Valley Resort. Lake Valley Resort is led by Stripes, who believes that making deals with Robotnik is safer than fighting Robotnik. When Robotnik asks if there are any new people staying at Lake Valley Resort, he reveals that Sonic and Manic are there, leaving out Sonia. 	While escaping from Sleet and Dingo, Sonic, Sonia, and Manic come across Lake Valley Resort. Lake Valley Resort is led by Stripes, who believes that making deals with Robotnik is safer than fighting Robotnik. When Robotnik asks if there are any new people staying at Lake Valley Resort, he reveals that Sonic and Manic are there, leaving out Sonia. 	While escaping from Sleet and Dingo, Sonic, Sonia, and Manic come across Lake Valley Resort. Lake Valley Resort is led by Stripes, who believes that making deals with Robotnik is safer than fighting Robotnik. When Robotnik asks if there are any new people staying at Lake Valley Resort, he reveals that Sonic and Manic are there, leaving out Sonia. 	While escaping from Sleet and Dingo, Sonic, Sonia, and Manic come across Lake Valley Resort. Lake Valley Resort is led by Stripes, who believes that making deals with Robotnik is safer than fighting Robotnik. When Robotnik asks if there are any new people staying at Lake Valley Resort, he reveals that Sonic and Manic are there, leaving out Sonia. 	While escaping from Sleet and Dingo, Sonic, Sonia, and Manic come across Lake Valley Resort. Lake Valley Resort is led by Stripes, who believes that making deals with Robotnik is safer than fighting Robotnik. When Robotnik asks if there are any new people staying at Lake Valley Resort, he reveals that Sonic and Manic are there, leaving out Sonia.
10 	"Come Out Wherever You Are"
"Bal explosif" 	Society Girl 	Ben Hurst and Pat Allee 	7 February 1999 	10 September 1999
Bartleby, with the aid of Robotnik, invites Sonia to the Debutante Ball. Meanwhile, Robotnik comes out with the Predator, an aircraft that will capture and robotisize all members of the resistance. When the resistance hijacks the craft, Sonia is chosen to lead the captured members of the resistance to safety. 	Bartleby, with the aid of Robotnik, invites Sonia to the Debutante Ball. Meanwhile, Robotnik comes out with the Predator, an aircraft that will capture and robotisize all members of the resistance. When the resistance hijacks the craft, Sonia is chosen to lead the captured members of the resistance to safety. 	Bartleby, with the aid of Robotnik, invites Sonia to the Debutante Ball. Meanwhile, Robotnik comes out with the Predator, an aircraft that will capture and robotisize all members of the resistance. When the resistance hijacks the craft, Sonia is chosen to lead the captured members of the resistance to safety. 	Bartleby, with the aid of Robotnik, invites Sonia to the Debutante Ball. Meanwhile, Robotnik comes out with the Predator, an aircraft that will capture and robotisize all members of the resistance. When the resistance hijacks the craft, Sonia is chosen to lead the captured members of the resistance to safety. 	Bartleby, with the aid of Robotnik, invites Sonia to the Debutante Ball. Meanwhile, Robotnik comes out with the Predator, an aircraft that will capture and robotisize all members of the resistance. When the resistance hijacks the craft, Sonia is chosen to lead the captured members of the resistance to safety. 	Bartleby, with the aid of Robotnik, invites Sonia to the Debutante Ball. Meanwhile, Robotnik comes out with the Predator, an aircraft that will capture and robotisize all members of the resistance. When the resistance hijacks the craft, Sonia is chosen to lead the captured members of the resistance to safety.
11 	"Winner Fakes All"
"Course d'obstacles" 	Built for Speed 	Mark Edens 	10 February 1999 	13 September 1999
Robotnik has created a super-fast robot and he's organized a race for the top athletes of Mobius and the robot. 	Robotnik has created a super-fast robot and he's organized a race for the top athletes of Mobius and the robot. 	Robotnik has created a super-fast robot and he's organized a race for the top athletes of Mobius and the robot. 	Robotnik has created a super-fast robot and he's organized a race for the top athletes of Mobius and the robot. 	Robotnik has created a super-fast robot and he's organized a race for the top athletes of Mobius and the robot. 	Robotnik has created a super-fast robot and he's organized a race for the top athletes of Mobius and the robot.
12 	"A Hedgehog's Home Is Her Castle"
"La vie de château" 	Let's Do It to It 	Len Janson 	14 February 1999 	14 September 1999
Sonia inherits a spooky and dilapidated castle and she enjoys the idea of making it the Underground headquarters. They also choose to stay there overnight. 	Sonia inherits a spooky and dilapidated castle and she enjoys the idea of making it the Underground headquarters. They also choose to stay there overnight. 	Sonia inherits a spooky and dilapidated castle and she enjoys the idea of making it the Underground headquarters. They also choose to stay there overnight. 	Sonia inherits a spooky and dilapidated castle and she enjoys the idea of making it the Underground headquarters. They also choose to stay there overnight. 	Sonia inherits a spooky and dilapidated castle and she enjoys the idea of making it the Underground headquarters. They also choose to stay there overnight. 	Sonia inherits a spooky and dilapidated castle and she enjoys the idea of making it the Underground headquarters. They also choose to stay there overnight.
13 	"Artifact"
"Objet de voleur" 	You Can't Own Everything 	Michael Edens 	17 February 1999 	15 September 1999
In order to raise money for his own cause, Robotnik auctions off artifacts from the lost city of Mobupinchu. But these artifacts are actually bombs, and they are about to go off. 	In order to raise money for his own cause, Robotnik auctions off artifacts from the lost city of Mobupinchu. But these artifacts are actually bombs, and they are about to go off. 	In order to raise money for his own cause, Robotnik auctions off artifacts from the lost city of Mobupinchu. But these artifacts are actually bombs, and they are about to go off. 	In order to raise money for his own cause, Robotnik auctions off artifacts from the lost city of Mobupinchu. But these artifacts are actually bombs, and they are about to go off. 	In order to raise money for his own cause, Robotnik auctions off artifacts from the lost city of Mobupinchu. But these artifacts are actually bombs, and they are about to go off. 	In order to raise money for his own cause, Robotnik auctions off artifacts from the lost city of Mobupinchu. But these artifacts are actually bombs, and they are about to go off.
14 	"Bug!"
"Robestioles" 	Never Give Up 	Len Janson 	21 February 1999 	16 September 1999
The Sonic Underground finds a village that has been destroyed by its Freedom Fighter occupants. The Sonic Underground find that it seems to have something to do with Robotnik's flybots which are all over the desert, as Manic finds out when one of them injects him with a mind-control toxin, making him a slave to Dr. Robotnik. 	The Sonic Underground finds a village that has been destroyed by its Freedom Fighter occupants. The Sonic Underground find that it seems to have something to do with Robotnik's flybots which are all over the desert, as Manic finds out when one of them injects him with a mind-control toxin, making him a slave to Dr. Robotnik. 	The Sonic Underground finds a village that has been destroyed by its Freedom Fighter occupants. The Sonic Underground find that it seems to have something to do with Robotnik's flybots which are all over the desert, as Manic finds out when one of them injects him with a mind-control toxin, making him a slave to Dr. Robotnik. 	The Sonic Underground finds a village that has been destroyed by its Freedom Fighter occupants. The Sonic Underground find that it seems to have something to do with Robotnik's flybots which are all over the desert, as Manic finds out when one of them injects him with a mind-control toxin, making him a slave to Dr. Robotnik. 	The Sonic Underground finds a village that has been destroyed by its Freedom Fighter occupants. The Sonic Underground find that it seems to have something to do with Robotnik's flybots which are all over the desert, as Manic finds out when one of them injects him with a mind-control toxin, making him a slave to Dr. Robotnik. 	The Sonic Underground finds a village that has been destroyed by its Freedom Fighter occupants. The Sonic Underground find that it seems to have something to do with Robotnik's flybots which are all over the desert, as Manic finds out when one of them injects him with a mind-control toxin, making him a slave to Dr. Robotnik.
15 	"Sonic Tonic"
"Tonisonic" 	The Fastest Thing Alive 	Mark Edens 	24 February 1999 	17 September 1999
Using the essence of a rare plant, Robotnik manages to create a potion that could grant Sleet and Dingo the ability to run at the speed of Sonic, but it turns out to have troublesome side-effects just after Sonia and Manic take the serum themselves. 	Using the essence of a rare plant, Robotnik manages to create a potion that could grant Sleet and Dingo the ability to run at the speed of Sonic, but it turns out to have troublesome side-effects just after Sonia and Manic take the serum themselves. 	Using the essence of a rare plant, Robotnik manages to create a potion that could grant Sleet and Dingo the ability to run at the speed of Sonic, but it turns out to have troublesome side-effects just after Sonia and Manic take the serum themselves. 	Using the essence of a rare plant, Robotnik manages to create a potion that could grant Sleet and Dingo the ability to run at the speed of Sonic, but it turns out to have troublesome side-effects just after Sonia and Manic take the serum themselves. 	Using the essence of a rare plant, Robotnik manages to create a potion that could grant Sleet and Dingo the ability to run at the speed of Sonic, but it turns out to have troublesome side-effects just after Sonia and Manic take the serum themselves. 	Using the essence of a rare plant, Robotnik manages to create a potion that could grant Sleet and Dingo the ability to run at the speed of Sonic, but it turns out to have troublesome side-effects just after Sonia and Manic take the serum themselves.
16 	"Friend or Foe?"
"L'ile d'emeraude" 	Not Always What They Seem 	Kevin Donahue 	28 February 1999 	20 September 1999
The band visit the Floating Island in search of their mother. There they meet Knuckles the Echidna, the island's guardian, who has been falsely told by Sleet and Dingo that the Sonic Underground is after the Chaos Emerald. Knuckles jumps to conclusions and while Knuckles and Sonic battle each other, Sleet and Dingo seek to steal the Emerald. 	The band visit the Floating Island in search of their mother. There they meet Knuckles the Echidna, the island's guardian, who has been falsely told by Sleet and Dingo that the Sonic Underground is after the Chaos Emerald. Knuckles jumps to conclusions and while Knuckles and Sonic battle each other, Sleet and Dingo seek to steal the Emerald. 	The band visit the Floating Island in search of their mother. There they meet Knuckles the Echidna, the island's guardian, who has been falsely told by Sleet and Dingo that the Sonic Underground is after the Chaos Emerald. Knuckles jumps to conclusions and while Knuckles and Sonic battle each other, Sleet and Dingo seek to steal the Emerald. 	The band visit the Floating Island in search of their mother. There they meet Knuckles the Echidna, the island's guardian, who has been falsely told by Sleet and Dingo that the Sonic Underground is after the Chaos Emerald. Knuckles jumps to conclusions and while Knuckles and Sonic battle each other, Sleet and Dingo seek to steal the Emerald. 	The band visit the Floating Island in search of their mother. There they meet Knuckles the Echidna, the island's guardian, who has been falsely told by Sleet and Dingo that the Sonic Underground is after the Chaos Emerald. Knuckles jumps to conclusions and while Knuckles and Sonic battle each other, Sleet and Dingo seek to steal the Emerald. 	The band visit the Floating Island in search of their mother. There they meet Knuckles the Echidna, the island's guardian, who has been falsely told by Sleet and Dingo that the Sonic Underground is after the Chaos Emerald. Knuckles jumps to conclusions and while Knuckles and Sonic battle each other, Sleet and Dingo seek to steal the Emerald.
17 	"Head Games"
"Reserve surnaturelle" 	Take a Chance 	Michael Edens 	3 March 1999 	21 September 1999
Queen Aleena tells Sonic, Sonia, and Manic that they are needed in Speedster Island, where they worship stone heads of Mobian hedgehogs. Sonic, Sonia and Manic discover that Sleet and Dingo are scaring the fish away so people who live on Speedster Island move out. Meanwhile, Bartleby wants to turn Speedster Island into a modern resort for wealthy people, with Sleet and Dingo pretending to help. When Sonic, Sonia, and Manic arrive on Speedster Island, Sleet and Dingo capture the hedgehogs, while breaking the promises he made to Bartleby and the people who live on Speedster Island.	Queen Aleena tells Sonic, Sonia, and Manic that they are needed in Speedster Island, where they worship stone heads of Mobian hedgehogs. Sonic, Sonia and Manic discover that Sleet and Dingo are scaring the fish away so people who live on Speedster Island move out. Meanwhile, Bartleby wants to turn Speedster Island into a modern resort for wealthy people, with Sleet and Dingo pretending to help. When Sonic, Sonia, and Manic arrive on Speedster Island, Sleet and Dingo capture the hedgehogs, while breaking the promises he made to Bartleby and the people who live on Speedster Island.	Queen Aleena tells Sonic, Sonia, and Manic that they are needed in Speedster Island, where they worship stone heads of Mobian hedgehogs. Sonic, Sonia and Manic discover that Sleet and Dingo are scaring the fish away so people who live on Speedster Island move out. Meanwhile, Bartleby wants to turn Speedster Island into a modern resort for wealthy people, with Sleet and Dingo pretending to help. When Sonic, Sonia, and Manic arrive on Speedster Island, Sleet and Dingo capture the hedgehogs, while breaking the promises he made to Bartleby and the people who live on Speedster Island.	Queen Aleena tells Sonic, Sonia, and Manic that they are needed in Speedster Island, where they worship stone heads of Mobian hedgehogs. Sonic, Sonia and Manic discover that Sleet and Dingo are scaring the fish away so people who live on Speedster Island move out. Meanwhile, Bartleby wants to turn Speedster Island into a modern resort for wealthy people, with Sleet and Dingo pretending to help. When Sonic, Sonia, and Manic arrive on Speedster Island, Sleet and Dingo capture the hedgehogs, while breaking the promises he made to Bartleby and the people who live on Speedster Island.	Queen Aleena tells Sonic, Sonia, and Manic that they are needed in Speedster Island, where they worship stone heads of Mobian hedgehogs. Sonic, Sonia and Manic discover that Sleet and Dingo are scaring the fish away so people who live on Speedster Island move out. Meanwhile, Bartleby wants to turn Speedster Island into a modern resort for wealthy people, with Sleet and Dingo pretending to help. When Sonic, Sonia, and Manic arrive on Speedster Island, Sleet and Dingo capture the hedgehogs, while breaking the promises he made to Bartleby and the people who live on Speedster Island.	Queen Aleena tells Sonic, Sonia, and Manic that they are needed in Speedster Island, where they worship stone heads of Mobian hedgehogs. Sonic, Sonia and Manic discover that Sleet and Dingo are scaring the fish away so people who live on Speedster Island move out. Meanwhile, Bartleby wants to turn Speedster Island into a modern resort for wealthy people, with Sleet and Dingo pretending to help. When Sonic, Sonia, and Manic arrive on Speedster Island, Sleet and Dingo capture the hedgehogs, while breaking the promises he made to Bartleby and the people who live on Speedster Island.
18 	"When in Rome..."
"Vouloir c'est pouvoir" 	Where There's a Will, There's a Way 	Len Janson 	7 March 1999 	22 September 1999
As a test of the hedgehogs' intellect and wit, the Oracle strips them of their powers and sends them into an alternate, Roman-themed reality where a Sleet-look-alike presides as Emperor. 	As a test of the hedgehogs' intellect and wit, the Oracle strips them of their powers and sends them into an alternate, Roman-themed reality where a Sleet-look-alike presides as Emperor. 	As a test of the hedgehogs' intellect and wit, the Oracle strips them of their powers and sends them into an alternate, Roman-themed reality where a Sleet-look-alike presides as Emperor. 	As a test of the hedgehogs' intellect and wit, the Oracle strips them of their powers and sends them into an alternate, Roman-themed reality where a Sleet-look-alike presides as Emperor. 	As a test of the hedgehogs' intellect and wit, the Oracle strips them of their powers and sends them into an alternate, Roman-themed reality where a Sleet-look-alike presides as Emperor. 	As a test of the hedgehogs' intellect and wit, the Oracle strips them of their powers and sends them into an alternate, Roman-themed reality where a Sleet-look-alike presides as Emperor.
19 	"The Jewel in the Crown"
"Mission diademe" 	The Cosmic Dance 	Mark Edens 	10 March 1999 	23 September 1999
Queen Aleena's Royal Jewel can reportedly trace the location of Queen Aleena. Having apparently found the jewel Sonic, Sonia and Manic think they may have found their mother at last. It is actually a trap to capture Robotnik they've just fallen into. 	Queen Aleena's Royal Jewel can reportedly trace the location of Queen Aleena. Having apparently found the jewel Sonic, Sonia and Manic think they may have found their mother at last. It is actually a trap to capture Robotnik they've just fallen into. 	Queen Aleena's Royal Jewel can reportedly trace the location of Queen Aleena. Having apparently found the jewel Sonic, Sonia and Manic think they may have found their mother at last. It is actually a trap to capture Robotnik they've just fallen into. 	Queen Aleena's Royal Jewel can reportedly trace the location of Queen Aleena. Having apparently found the jewel Sonic, Sonia and Manic think they may have found their mother at last. It is actually a trap to capture Robotnik they've just fallen into. 	Queen Aleena's Royal Jewel can reportedly trace the location of Queen Aleena. Having apparently found the jewel Sonic, Sonia and Manic think they may have found their mother at last. It is actually a trap to capture Robotnik they've just fallen into. 	Queen Aleena's Royal Jewel can reportedly trace the location of Queen Aleena. Having apparently found the jewel Sonic, Sonia and Manic think they may have found their mother at last. It is actually a trap to capture Robotnik they've just fallen into.
20 	"Three Hedgehogs and a Baby"
"BB AJT" 	Being a Kid Is Cool 	Len Janson 	14 March 1999 	24 September 1999
While in Mobotropolis, Sonic, Sonia and Manic find an abandoned baby hedgehog. While Sonic and Sonia search for its parents, Manic is left to look after it and utilizes his mothering instincts. The baby is actually a robot and Robotnik almost uncovers the Freedom Fighters' sanctuary. 	While in Mobotropolis, Sonic, Sonia and Manic find an abandoned baby hedgehog. While Sonic and Sonia search for its parents, Manic is left to look after it and utilizes his mothering instincts. The baby is actually a robot and Robotnik almost uncovers the Freedom Fighters' sanctuary. 	While in Mobotropolis, Sonic, Sonia and Manic find an abandoned baby hedgehog. While Sonic and Sonia search for its parents, Manic is left to look after it and utilizes his mothering instincts. The baby is actually a robot and Robotnik almost uncovers the Freedom Fighters' sanctuary. 	While in Mobotropolis, Sonic, Sonia and Manic find an abandoned baby hedgehog. While Sonic and Sonia search for its parents, Manic is left to look after it and utilizes his mothering instincts. The baby is actually a robot and Robotnik almost uncovers the Freedom Fighters' sanctuary. 	While in Mobotropolis, Sonic, Sonia and Manic find an abandoned baby hedgehog. While Sonic and Sonia search for its parents, Manic is left to look after it and utilizes his mothering instincts. The baby is actually a robot and Robotnik almost uncovers the Freedom Fighters' sanctuary. 	While in Mobotropolis, Sonic, Sonia and Manic find an abandoned baby hedgehog. While Sonic and Sonia search for its parents, Manic is left to look after it and utilizes his mothering instincts. The baby is actually a robot and Robotnik almost uncovers the Freedom Fighters' sanctuary.
21 	"Dunes Day"
"Nomade's Land" 	True Blue Friend 	Mark Edens 	17 March 1999 	27 September 1999
The Sonic Underground come across a nomadic tribe whilst journeying through the desert. Manic claims to not trust the tribe's leader "Ifyoucan". He sets off to find out the truth and uncovers a shocking secret. 	The Sonic Underground come across a nomadic tribe whilst journeying through the desert. Manic claims to not trust the tribe's leader "Ifyoucan". He sets off to find out the truth and uncovers a shocking secret. 	The Sonic Underground come across a nomadic tribe whilst journeying through the desert. Manic claims to not trust the tribe's leader "Ifyoucan". He sets off to find out the truth and uncovers a shocking secret. 	The Sonic Underground come across a nomadic tribe whilst journeying through the desert. Manic claims to not trust the tribe's leader "Ifyoucan". He sets off to find out the truth and uncovers a shocking secret. 	The Sonic Underground come across a nomadic tribe whilst journeying through the desert. Manic claims to not trust the tribe's leader "Ifyoucan". He sets off to find out the truth and uncovers a shocking secret. 	The Sonic Underground come across a nomadic tribe whilst journeying through the desert. Manic claims to not trust the tribe's leader "Ifyoucan". He sets off to find out the truth and uncovers a shocking secret.
22 	"Mummy Dearest"
"Le parchemin" 	Mummy Wrap 	Ben Hurst and Pat Allee 	21 March 1999 	28 September 1999
The Sonic Underground journey through the treacherous Mobian desert as they try to locate a hidden temple filled with prophecies of Robotnik's defeat. 	The Sonic Underground journey through the treacherous Mobian desert as they try to locate a hidden temple filled with prophecies of Robotnik's defeat. 	The Sonic Underground journey through the treacherous Mobian desert as they try to locate a hidden temple filled with prophecies of Robotnik's defeat. 	The Sonic Underground journey through the treacherous Mobian desert as they try to locate a hidden temple filled with prophecies of Robotnik's defeat. 	The Sonic Underground journey through the treacherous Mobian desert as they try to locate a hidden temple filled with prophecies of Robotnik's defeat. 	The Sonic Underground journey through the treacherous Mobian desert as they try to locate a hidden temple filled with prophecies of Robotnik's defeat.
23 	"Hedgehog in the Iron Mask"
"Mascarade" 	Part of the Problem 	Bob Forward 	24 March 1999 	29 September 1999
The Sonic Underground rescue a prisoner from one of Robotnik's towers – a hedgehog wearing a mask. The prisoner claims he is the hedgehogs' uncle and twin brother of Queen Aleena. It is a sinister plot by Robotnik to split the Sonic Underground up. 	The Sonic Underground rescue a prisoner from one of Robotnik's towers – a hedgehog wearing a mask. The prisoner claims he is the hedgehogs' uncle and twin brother of Queen Aleena. It is a sinister plot by Robotnik to split the Sonic Underground up. 	The Sonic Underground rescue a prisoner from one of Robotnik's towers – a hedgehog wearing a mask. The prisoner claims he is the hedgehogs' uncle and twin brother of Queen Aleena. It is a sinister plot by Robotnik to split the Sonic Underground up. 	The Sonic Underground rescue a prisoner from one of Robotnik's towers – a hedgehog wearing a mask. The prisoner claims he is the hedgehogs' uncle and twin brother of Queen Aleena. It is a sinister plot by Robotnik to split the Sonic Underground up. 	The Sonic Underground rescue a prisoner from one of Robotnik's towers – a hedgehog wearing a mask. The prisoner claims he is the hedgehogs' uncle and twin brother of Queen Aleena. It is a sinister plot by Robotnik to split the Sonic Underground up. 	The Sonic Underground rescue a prisoner from one of Robotnik's towers – a hedgehog wearing a mask. The prisoner claims he is the hedgehogs' uncle and twin brother of Queen Aleena. It is a sinister plot by Robotnik to split the Sonic Underground up.
24 	"Six Is a Crowd"
"Monde parallele" 	I Can Do That for You 	Len Janson 	28 March 1999 	30 September 1999
The hedgehogs visit the Oracle again. He sends them to an alternate dimension where they are tyrannical rulers of Mobius and Robotnik is the leader of the Freedom Fighters. They must defeat their corrupted selves and restore peace to Mobotropolis. 	The hedgehogs visit the Oracle again. He sends them to an alternate dimension where they are tyrannical rulers of Mobius and Robotnik is the leader of the Freedom Fighters. They must defeat their corrupted selves and restore peace to Mobotropolis. 	The hedgehogs visit the Oracle again. He sends them to an alternate dimension where they are tyrannical rulers of Mobius and Robotnik is the leader of the Freedom Fighters. They must defeat their corrupted selves and restore peace to Mobotropolis. 	The hedgehogs visit the Oracle again. He sends them to an alternate dimension where they are tyrannical rulers of Mobius and Robotnik is the leader of the Freedom Fighters. They must defeat their corrupted selves and restore peace to Mobotropolis. 	The hedgehogs visit the Oracle again. He sends them to an alternate dimension where they are tyrannical rulers of Mobius and Robotnik is the leader of the Freedom Fighters. They must defeat their corrupted selves and restore peace to Mobotropolis. 	The hedgehogs visit the Oracle again. He sends them to an alternate dimension where they are tyrannical rulers of Mobius and Robotnik is the leader of the Freedom Fighters. They must defeat their corrupted selves and restore peace to Mobotropolis.
25 	"Flying Fortress"
"La forteresse volante" 	No One Is an Island 	Mark Edens 	31 March 1999 	1 October 1999
Chaos Emerald Crisis (Part 1 of 3). Robotnik creates a new flying fortress to lay waste to the planet. When the Sonic Underground suspect that a Chaos Emerald is keeping the fortress aloft they head to the Floating Island to enlist the help of Knuckles. Sleet and Dingo steal the Emerald before the group can reach it causing the fortress to fall into the sea. 	Chaos Emerald Crisis (Part 1 of 3). Robotnik creates a new flying fortress to lay waste to the planet. When the Sonic Underground suspect that a Chaos Emerald is keeping the fortress aloft they head to the Floating Island to enlist the help of Knuckles. Sleet and Dingo steal the Emerald before the group can reach it causing the fortress to fall into the sea. 	Chaos Emerald Crisis (Part 1 of 3). Robotnik creates a new flying fortress to lay waste to the planet. When the Sonic Underground suspect that a Chaos Emerald is keeping the fortress aloft they head to the Floating Island to enlist the help of Knuckles. Sleet and Dingo steal the Emerald before the group can reach it causing the fortress to fall into the sea. 	Chaos Emerald Crisis (Part 1 of 3). Robotnik creates a new flying fortress to lay waste to the planet. When the Sonic Underground suspect that a Chaos Emerald is keeping the fortress aloft they head to the Floating Island to enlist the help of Knuckles. Sleet and Dingo steal the Emerald before the group can reach it causing the fortress to fall into the sea. 	Chaos Emerald Crisis (Part 1 of 3). Robotnik creates a new flying fortress to lay waste to the planet. When the Sonic Underground suspect that a Chaos Emerald is keeping the fortress aloft they head to the Floating Island to enlist the help of Knuckles. Sleet and Dingo steal the Emerald before the group can reach it causing the fortress to fall into the sea. 	Chaos Emerald Crisis (Part 1 of 3). Robotnik creates a new flying fortress to lay waste to the planet. When the Sonic Underground suspect that a Chaos Emerald is keeping the fortress aloft they head to the Floating Island to enlist the help of Knuckles. Sleet and Dingo steal the Emerald before the group can reach it causing the fortress to fall into the sea.
26 	"Beginnings"
"On reprend au début" 	Someday 	Ben Hurst and Pat Allee 	4 April 1999 	30 August 1999
Origins (Part 1 of 3). Queen Aleena Hedgehog tells the story of how Dr. Robotnik took over planet Mobius and how she had to give up her three children Sonic, Sonia, and Manic to fulfill a prophecy that one day the siblings will be able to rise against Robotnik's rule and restore peace to the planet. 	Origins (Part 1 of 3). Queen Aleena Hedgehog tells the story of how Dr. Robotnik took over planet Mobius and how she had to give up her three children Sonic, Sonia, and Manic to fulfill a prophecy that one day the siblings will be able to rise against Robotnik's rule and restore peace to the planet. 	Origins (Part 1 of 3). Queen Aleena Hedgehog tells the story of how Dr. Robotnik took over planet Mobius and how she had to give up her three children Sonic, Sonia, and Manic to fulfill a prophecy that one day the siblings will be able to rise against Robotnik's rule and restore peace to the planet. 	Origins (Part 1 of 3). Queen Aleena Hedgehog tells the story of how Dr. Robotnik took over planet Mobius and how she had to give up her three children Sonic, Sonia, and Manic to fulfill a prophecy that one day the siblings will be able to rise against Robotnik's rule and restore peace to the planet. 	Origins (Part 1 of 3). Queen Aleena Hedgehog tells the story of how Dr. Robotnik took over planet Mobius and how she had to give up her three children Sonic, Sonia, and Manic to fulfill a prophecy that one day the siblings will be able to rise against Robotnik's rule and restore peace to the planet. 	Origins (Part 1 of 3). Queen Aleena Hedgehog tells the story of how Dr. Robotnik took over planet Mobius and how she had to give up her three children Sonic, Sonia, and Manic to fulfill a prophecy that one day the siblings will be able to rise against Robotnik's rule and restore peace to the planet.
27 	"No Hedgehog Is an Island"
"Dur comme la pierre" 	Learn to Overcome 	Mark Edens 	7 April 1999 	5 October 1999
Chaos Emerald Crisis (Part 2 of 3). After taking off with the Chaos Emerald, Dingo accidentally breaks it unleashing the chaos energy inside. The Sonic Underground and Knuckles set off to talk to Knuckles' great grandfather Athair for advice on handling the situation. Athair advises them to make an alliance with Robotnik. 	Chaos Emerald Crisis (Part 2 of 3). After taking off with the Chaos Emerald, Dingo accidentally breaks it unleashing the chaos energy inside. The Sonic Underground and Knuckles set off to talk to Knuckles' great grandfather Athair for advice on handling the situation. Athair advises them to make an alliance with Robotnik. 	Chaos Emerald Crisis (Part 2 of 3). After taking off with the Chaos Emerald, Dingo accidentally breaks it unleashing the chaos energy inside. The Sonic Underground and Knuckles set off to talk to Knuckles' great grandfather Athair for advice on handling the situation. Athair advises them to make an alliance with Robotnik. 	Chaos Emerald Crisis (Part 2 of 3). After taking off with the Chaos Emerald, Dingo accidentally breaks it unleashing the chaos energy inside. The Sonic Underground and Knuckles set off to talk to Knuckles' great grandfather Athair for advice on handling the situation. Athair advises them to make an alliance with Robotnik. 	Chaos Emerald Crisis (Part 2 of 3). After taking off with the Chaos Emerald, Dingo accidentally breaks it unleashing the chaos energy inside. The Sonic Underground and Knuckles set off to talk to Knuckles' great grandfather Athair for advice on handling the situation. Athair advises them to make an alliance with Robotnik. 	Chaos Emerald Crisis (Part 2 of 3). After taking off with the Chaos Emerald, Dingo accidentally breaks it unleashing the chaos energy inside. The Sonic Underground and Knuckles set off to talk to Knuckles' great grandfather Athair for advice on handling the situation. Athair advises them to make an alliance with Robotnik.
28 	"Getting to Know You"
"S'entrainer a s'entraider" 	Working Together in Harmony 	Ben Hurst and Pat Allee 	11 April 1999 	6 October 1999
Origins (Part 2 of 3). The newly reunited Sonic Siblings must learn to work as a team if they are to do battle with Robotnik. 	Origins (Part 2 of 3). The newly reunited Sonic Siblings must learn to work as a team if they are to do battle with Robotnik. 	Origins (Part 2 of 3). The newly reunited Sonic Siblings must learn to work as a team if they are to do battle with Robotnik. 	Origins (Part 2 of 3). The newly reunited Sonic Siblings must learn to work as a team if they are to do battle with Robotnik. 	Origins (Part 2 of 3). The newly reunited Sonic Siblings must learn to work as a team if they are to do battle with Robotnik. 	Origins (Part 2 of 3). The newly reunited Sonic Siblings must learn to work as a team if they are to do battle with Robotnik.
29 	"New Echidna in Town"
"Dur, Dur-Dur" 	The Mobius Stomp 	Mark Edens 	14 April 1999 	7 October 1999
Chaos Emerald Crisis (Part 3 of 3). Knuckles bargains with Robotnik in order to recover and repair the Chaos Emerald before Mobius is destroyed but, to acquire the villain's help, the echidna must betray the Hedgehogs. After rescuing his friends from the Roboticizer, Knuckles and the Sonic Underground must now combat Dingo transformed by the chaos energy into a monster. 	Chaos Emerald Crisis (Part 3 of 3). Knuckles bargains with Robotnik in order to recover and repair the Chaos Emerald before Mobius is destroyed but, to acquire the villain's help, the echidna must betray the Hedgehogs. After rescuing his friends from the Roboticizer, Knuckles and the Sonic Underground must now combat Dingo transformed by the chaos energy into a monster. 	Chaos Emerald Crisis (Part 3 of 3). Knuckles bargains with Robotnik in order to recover and repair the Chaos Emerald before Mobius is destroyed but, to acquire the villain's help, the echidna must betray the Hedgehogs. After rescuing his friends from the Roboticizer, Knuckles and the Sonic Underground must now combat Dingo transformed by the chaos energy into a monster. 	Chaos Emerald Crisis (Part 3 of 3). Knuckles bargains with Robotnik in order to recover and repair the Chaos Emerald before Mobius is destroyed but, to acquire the villain's help, the echidna must betray the Hedgehogs. After rescuing his friends from the Roboticizer, Knuckles and the Sonic Underground must now combat Dingo transformed by the chaos energy into a monster. 	Chaos Emerald Crisis (Part 3 of 3). Knuckles bargains with Robotnik in order to recover and repair the Chaos Emerald before Mobius is destroyed but, to acquire the villain's help, the echidna must betray the Hedgehogs. After rescuing his friends from the Roboticizer, Knuckles and the Sonic Underground must now combat Dingo transformed by the chaos energy into a monster. 	Chaos Emerald Crisis (Part 3 of 3). Knuckles bargains with Robotnik in order to recover and repair the Chaos Emerald before Mobius is destroyed but, to acquire the villain's help, the echidna must betray the Hedgehogs. After rescuing his friends from the Roboticizer, Knuckles and the Sonic Underground must now combat Dingo transformed by the chaos energy into a monster.
30 	"Harmony or Something"
"Unis sont les hérissons" 	We're All in This Together 	Ben Hurst and Pat Allee 	18 April 1999 	8 October 1999
Origins (Part 3 of 3). Sonic, Sonia and Manic go on a mission to rescue the Oracle from Robotnik. 	Origins (Part 3 of 3). Sonic, Sonia and Manic go on a mission to rescue the Oracle from Robotnik. 	Origins (Part 3 of 3). Sonic, Sonia and Manic go on a mission to rescue the Oracle from Robotnik. 	Origins (Part 3 of 3). Sonic, Sonia and Manic go on a mission to rescue the Oracle from Robotnik. 	Origins (Part 3 of 3). Sonic, Sonia and Manic go on a mission to rescue the Oracle from Robotnik. 	Origins (Part 3 of 3). Sonic, Sonia and Manic go on a mission to rescue the Oracle from Robotnik.
31 	"Country Crisis"
"Soscission" 	How You Play the Game 	Laren Bright 	21 April 1999 	11 October 1999
The Sonic Underground are on a mission to stop a group of hillbillies from feuding so they can stop Robotnik's building project from flooding the countryside. 	The Sonic Underground are on a mission to stop a group of hillbillies from feuding so they can stop Robotnik's building project from flooding the countryside. 	The Sonic Underground are on a mission to stop a group of hillbillies from feuding so they can stop Robotnik's building project from flooding the countryside. 	The Sonic Underground are on a mission to stop a group of hillbillies from feuding so they can stop Robotnik's building project from flooding the countryside. 	The Sonic Underground are on a mission to stop a group of hillbillies from feuding so they can stop Robotnik's building project from flooding the countryside. 	The Sonic Underground are on a mission to stop a group of hillbillies from feuding so they can stop Robotnik's building project from flooding the countryside.
32 	"Haircraft in Space"
"Minutes de coiffeur" 	Don't Be a Backstabber 	Tracy Berna 	25 April 1999 	12 October 1999
A salon robot is hypnotizing people that go to her salon into revealing deep secrets. When Sonia goes there, she reveals the location of their new base. 	A salon robot is hypnotizing people that go to her salon into revealing deep secrets. When Sonia goes there, she reveals the location of their new base. 	A salon robot is hypnotizing people that go to her salon into revealing deep secrets. When Sonia goes there, she reveals the location of their new base. 	A salon robot is hypnotizing people that go to her salon into revealing deep secrets. When Sonia goes there, she reveals the location of their new base. 	A salon robot is hypnotizing people that go to her salon into revealing deep secrets. When Sonia goes there, she reveals the location of their new base. 	A salon robot is hypnotizing people that go to her salon into revealing deep secrets. When Sonia goes there, she reveals the location of their new base.
33 	"Healer"
"Le charlatan" 	We're the Sonic Underground 	Ben Hurst and Pat Allee 	28 April 1999 	13 October 1999
A Mobian named Titus creates a machine that can de-robotisize robots called the De-Roboticizer. 	A Mobian named Titus creates a machine that can de-robotisize robots called the De-Roboticizer. 	A Mobian named Titus creates a machine that can de-robotisize robots called the De-Roboticizer. 	A Mobian named Titus creates a machine that can de-robotisize robots called the De-Roboticizer. 	A Mobian named Titus creates a machine that can de-robotisize robots called the De-Roboticizer. 	A Mobian named Titus creates a machine that can de-robotisize robots called the De-Roboticizer.
34 	"Sonia's Choice"
"Le choix de Sonia" 	Never Easy 	Ben Hurst and Pat Allee 	2 May 1999 	14 October 1999
Robotnik is about to auction four royal goblets in Anèz. When the hedgehogs take the goblets back Sonic and Manic are captured. At both ends of the city are Roboticizers with one of Sonia's brothers inside. 	Robotnik is about to auction four royal goblets in Anèz. When the hedgehogs take the goblets back Sonic and Manic are captured. At both ends of the city are Roboticizers with one of Sonia's brothers inside. 	Robotnik is about to auction four royal goblets in Anèz. When the hedgehogs take the goblets back Sonic and Manic are captured. At both ends of the city are Roboticizers with one of Sonia's brothers inside. 	Robotnik is about to auction four royal goblets in Anèz. When the hedgehogs take the goblets back Sonic and Manic are captured. At both ends of the city are Roboticizers with one of Sonia's brothers inside. 	Robotnik is about to auction four royal goblets in Anèz. When the hedgehogs take the goblets back Sonic and Manic are captured. At both ends of the city are Roboticizers with one of Sonia's brothers inside. 	Robotnik is about to auction four royal goblets in Anèz. When the hedgehogs take the goblets back Sonic and Manic are captured. At both ends of the city are Roboticizers with one of Sonia's brothers inside.
35 	"The Big Melt"
"20000 lieues sous les glaces" 	Fun in the Sun 	Len Janson 	5 May 1999 	15 October 1999
What started as a vacation for Sonic, Sonia and Manic gets ruined by Dr. Robotnik when he comes up with a plan – to melt the polar ice caps. Sonia gets split up from the group and mistaken for Queen Sauna by a group of penguins who are having troubles of their own. 	What started as a vacation for Sonic, Sonia and Manic gets ruined by Dr. Robotnik when he comes up with a plan – to melt the polar ice caps. Sonia gets split up from the group and mistaken for Queen Sauna by a group of penguins who are having troubles of their own. 	What started as a vacation for Sonic, Sonia and Manic gets ruined by Dr. Robotnik when he comes up with a plan – to melt the polar ice caps. Sonia gets split up from the group and mistaken for Queen Sauna by a group of penguins who are having troubles of their own. 	What started as a vacation for Sonic, Sonia and Manic gets ruined by Dr. Robotnik when he comes up with a plan – to melt the polar ice caps. Sonia gets split up from the group and mistaken for Queen Sauna by a group of penguins who are having troubles of their own. 	What started as a vacation for Sonic, Sonia and Manic gets ruined by Dr. Robotnik when he comes up with a plan – to melt the polar ice caps. Sonia gets split up from the group and mistaken for Queen Sauna by a group of penguins who are having troubles of their own. 	What started as a vacation for Sonic, Sonia and Manic gets ruined by Dr. Robotnik when he comes up with a plan – to melt the polar ice caps. Sonia gets split up from the group and mistaken for Queen Sauna by a group of penguins who are having troubles of their own.
36 	"Sleepers"
"Agent inhibeur" 	Have It All Again 	Ben Hurst and Pat Allee 	9 May 1999 	18 October 1999
Robotnik invents a new dart that induces sleep and sends them after the resistance. The hedgehogs attempt to stop them from the source. Manic is hit by the sleeper darts. After destroying the sleepers, they attempt to destroy the fuel source in the Bad Lands' Mine. 	Robotnik invents a new dart that induces sleep and sends them after the resistance. The hedgehogs attempt to stop them from the source. Manic is hit by the sleeper darts. After destroying the sleepers, they attempt to destroy the fuel source in the Bad Lands' Mine. 	Robotnik invents a new dart that induces sleep and sends them after the resistance. The hedgehogs attempt to stop them from the source. Manic is hit by the sleeper darts. After destroying the sleepers, they attempt to destroy the fuel source in the Bad Lands' Mine. 	Robotnik invents a new dart that induces sleep and sends them after the resistance. The hedgehogs attempt to stop them from the source. Manic is hit by the sleeper darts. After destroying the sleepers, they attempt to destroy the fuel source in the Bad Lands' Mine. 	Robotnik invents a new dart that induces sleep and sends them after the resistance. The hedgehogs attempt to stop them from the source. Manic is hit by the sleeper darts. After destroying the sleepers, they attempt to destroy the fuel source in the Bad Lands' Mine. 	Robotnik invents a new dart that induces sleep and sends them after the resistance. The hedgehogs attempt to stop them from the source. Manic is hit by the sleeper darts. After destroying the sleepers, they attempt to destroy the fuel source in the Bad Lands' Mine.
37 	"Bartleby the Prisoner"
"Mauvaises mines" 	Justice Calling 	Elenor Burian-Mohr and Terence Taylor 	12 May 1999 	19 October 1999
Bartleby is placed under arrest for helping out the resistance. 	Bartleby is placed under arrest for helping out the resistance. 	Bartleby is placed under arrest for helping out the resistance. 	Bartleby is placed under arrest for helping out the resistance. 	Bartleby is placed under arrest for helping out the resistance. 	Bartleby is placed under arrest for helping out the resistance.
38 	"The ART of Destruction"
"La musique adoucit les monstres" 	The Sound of Freedom 	Laren Bright 	16 May 1999 	20 October 1999
The Sonic Underground come across ARTT (Artificial Robot Thought Technology), Robotnik's new robot, that can think and learn for itself. ARTT soon learns the power of friendship and switches to the Resistance. This gives Sleet the opportunity to finish off ARTT and the hedgehogs before time runs out. 	The Sonic Underground come across ARTT (Artificial Robot Thought Technology), Robotnik's new robot, that can think and learn for itself. ARTT soon learns the power of friendship and switches to the Resistance. This gives Sleet the opportunity to finish off ARTT and the hedgehogs before time runs out. 	The Sonic Underground come across ARTT (Artificial Robot Thought Technology), Robotnik's new robot, that can think and learn for itself. ARTT soon learns the power of friendship and switches to the Resistance. This gives Sleet the opportunity to finish off ARTT and the hedgehogs before time runs out. 	The Sonic Underground come across ARTT (Artificial Robot Thought Technology), Robotnik's new robot, that can think and learn for itself. ARTT soon learns the power of friendship and switches to the Resistance. This gives Sleet the opportunity to finish off ARTT and the hedgehogs before time runs out. 	The Sonic Underground come across ARTT (Artificial Robot Thought Technology), Robotnik's new robot, that can think and learn for itself. ARTT soon learns the power of friendship and switches to the Resistance. This gives Sleet the opportunity to finish off ARTT and the hedgehogs before time runs out. 	The Sonic Underground come across ARTT (Artificial Robot Thought Technology), Robotnik's new robot, that can think and learn for itself. ARTT soon learns the power of friendship and switches to the Resistance. This gives Sleet the opportunity to finish off ARTT and the hedgehogs before time runs out.
39 	"The Pendant"
"Affaire pendante" 	Lady Liberty 	Ben Hurst and Pat Allee 	19 May 1999 	21 October 1999
While combating Sleet and Dingo in the newly discovered Emerald Peninsula, Sonia finds a magic pendant that threatens to turn her invisible. Sonic and Manic race against time to find the cure to this seemingly irreversible spell before Sonia disappears forever. 	While combating Sleet and Dingo in the newly discovered Emerald Peninsula, Sonia finds a magic pendant that threatens to turn her invisible. Sonic and Manic race against time to find the cure to this seemingly irreversible spell before Sonia disappears forever. 	While combating Sleet and Dingo in the newly discovered Emerald Peninsula, Sonia finds a magic pendant that threatens to turn her invisible. Sonic and Manic race against time to find the cure to this seemingly irreversible spell before Sonia disappears forever. 	While combating Sleet and Dingo in the newly discovered Emerald Peninsula, Sonia finds a magic pendant that threatens to turn her invisible. Sonic and Manic race against time to find the cure to this seemingly irreversible spell before Sonia disappears forever. 	While combating Sleet and Dingo in the newly discovered Emerald Peninsula, Sonia finds a magic pendant that threatens to turn her invisible. Sonic and Manic race against time to find the cure to this seemingly irreversible spell before Sonia disappears forever. 	While combating Sleet and Dingo in the newly discovered Emerald Peninsula, Sonia finds a magic pendant that threatens to turn her invisible. Sonic and Manic race against time to find the cure to this seemingly irreversible spell before Sonia disappears forever.
40 	"Virtual Danger"
"La realité du virtuel" 	Don't Let Your Guard Down 	Ben Hurst and Pat Allee 	23 May 1999 	22 October 1999
Sonic and Manic get addicted to a new video game that is hindering Cyrus' plan to infiltrate Robotnik's base. Sonic and Manic soon find out Robotnik is behind everything and is ready to eliminate them. 	Sonic and Manic get addicted to a new video game that is hindering Cyrus' plan to infiltrate Robotnik's base. Sonic and Manic soon find out Robotnik is behind everything and is ready to eliminate them. 	Sonic and Manic get addicted to a new video game that is hindering Cyrus' plan to infiltrate Robotnik's base. Sonic and Manic soon find out Robotnik is behind everything and is ready to eliminate them. 	Sonic and Manic get addicted to a new video game that is hindering Cyrus' plan to infiltrate Robotnik's base. Sonic and Manic soon find out Robotnik is behind everything and is ready to eliminate them. 	Sonic and Manic get addicted to a new video game that is hindering Cyrus' plan to infiltrate Robotnik's base. Sonic and Manic soon find out Robotnik is behind everything and is ready to eliminate them. 	Sonic and Manic get addicted to a new video game that is hindering Cyrus' plan to infiltrate Robotnik's base. Sonic and Manic soon find out Robotnik is behind everything and is ready to eliminate them.
== History ==
=== Development ===
It is often claimed that the newly Sega of America CEO Shoichiro Irimajiri contacted the French Animation Studio Alphanim and Nelvana founder Michael Hirsh to make a new Sonic cartoon, which would help gain interest in buying their new console, the Dreamcast. Sonic Underground started production in early 1997, around the same time the development of both the Dreamcast and Sonic Adventure had started. The show bible was written as early as March 1997. The show was publicly announced as early as December 1997.
When the show was in development, two episodes per week were produced, and the writers felt that they were not given enough time to "tie everything together" in the plot, being limited to a three-part "Origins" saga for coherency. Nelvana and Alphamin used cattle calls to generate episode plots. Periodically, about twenty unaffiliated writers were brought into the studios to learn about the established characters and brainstorm possible plots for episodes, after which about one or two would be selected. According to Mike Piccirillo, when he was writing songs for the show, there were no storyboards done yet, so he could only work off of the scripts, which often said what moral or lesson the song should be about in each episode. The show's animation was outsourced to TMS Entertainment in Japan and the Korean animation studios Seoul Movie. Koko Enterprises and Dong Yang Animation with the main title animation done in Madrid, Spain by Milimetros, S.A. (also responsible for the animation in the Saturday morning Sonic the Hedgehog cartoon), pre-production services provided by Le Studio Ellipse, layout services by Arles Animation and video and audio post-production services by Les Studios de Saint-Ouen. According to Robby London, Sega of Japan had an active role in the approval process for Sonic Underground, going so far as to force Nelvana to reanimate the characters with five fingers instead of the usual four due to the Japanese association of four fingers with the Yakuza.
While it was once believed that 65 episodes were made of which only 40 aired, Ben Hurst, a main writer from Sonic the Hedgehog (dubbed SatAM by fans), who was also involved in Sonic Underground's production, stated in a chat at the Sonic Amateur Games Expo 2008 that only 40 were planned to be produced from the beginning.
=== Airing and Broadcast ===
==== France ====
Sonic Underground first premiered in France on 6 January 1999 and aired on France 3 on Wednesdays and Sundays.
==== United Kingdom ====
The show made its English premiere in the United Kingdom on May 2, 1999, airing on ITV's GMTV strand, on the Nickelodeon-produced block Diggit, which was programmed by the show's distributor Microsoft Media Ventures and had also aired other programmes produced by Nelvana at the time. ITV aired the first 18 episodes of the series on Sunday mornings before the series was removed from the Diggit schedule.
In 2005, Nelvana pre-sold the series to GMTV, and so the series reran on ITV2 in 2005 as part of the GMTV2 Kids strand.
==== North America ====
The series premiered in the country on 30 August 1999 on CBS on the CBS Kidshow block and ran until 22 October 1999.
The series aired in Canada on Teletoon.
==== Other regions ====
In Australia, Sonic Underground premiered on Network 10 during Cheez TV in 1999.
== Home media ==
In the United States, Paramount Pictures Entertainment released a VHS/DVD titled Dr. Robotnik's Revenge in 2003, containing 4 episodes (3 on the VHS). It was re-released in 2007.
Shout! Factory and Paramount Pictures Entertainment have released the complete series on DVD in Region 1 (NTSC) in two volume sets. Volume 1, simply entitled Sonic Underground, was released on 18 December 2007. It contains the first 20 episodes of the show on three discs; a bonus fourth disc is an audio CD containing eight songs from the series, including the opening theme. Sonic Underground: Volume 2 was released on 17 June 2008, featuring the remaining 20 episodes.
As of January 2018, Sonic Underground is available on the iTunes Store.
In the UK, the complete Sonic Underground series, comprising all 40 episodes on 10 DVDs, was released by Paramount Pictures Home Entertainment UK in 2004, compatible only with region 2 players.
== Reception ==
Sonic Underground received mixed to negative reviews: it was criticized for its complex plot and large amount of differences from the games, although some critics have defined the music as catchy. David Cornelius of DVD Talk said, "While many Sonic fans did not take too well to all the changes, preferring the original 'Sonic' cartoon to this stranger, sometimes darker, sometimes sillier incarnation, the series did win a small but loyal cult following. I fall more on the side of disappointment - for all the cleverness that went into crafting an all-new backstory, the episodes themselves are uninspired - but acknowledge the simple fact that it scores well with its target audience." GamesRadar called the show as one of "the absolute worst Sonic moments", criticizing the extra characters and the complex plot. Patrick Lee of The A.V. Club panned the series, calling it one of the most artistic failures to ever end up on television and "the result of several unrelated ideas forcibly squashed into one project". Comedian Chris Hardwick commented on the show's theme song, composed by Mike Piccirillo, claiming that "that guy sounds like he's trying to win his exwife back." Susan Arendt of Wired said "The songs are actually kind of catchy in a Saturday morning cartoon kind of way, but the band thing still seems a bit out of place, especially when the instruments turn into weapons." Emily Ashby of Common Sense Media said "Sonic Underground has some good things to offer kids, but only if they're ready for the complexities of its story" criticizing its complex plot but complimenting its low violence and ability to entertain children.
== Other media ==
The Sonic the Hedgehog comic from IDW featured a story in one of its special issues in which the Sonic Underground continuity was featured. According to the comics' plot, the reality in which Sonic Underground takes place is one of many parallel universes that share elements with Sonic's own. In the story, Sonic Prime—hailing from the main universe in the comic series—joins forces with his counterpart and siblings to stop Dr. Robotnik, who has managed to assemble a monstrous battle machine known as the Giant Borg. Robotnik obtained the pieces for this machine due to being mistaken for one of his own counterparts by Evil Sonic, an evil counterpart of Sonic's who later came to be known as Scourge the Hedgehog.
The Sonic Universe spin-off comic was originally scheduled to feature an epilogue to the unfinished Sonic Underground for its 50th issue. However, for unknown reasons this was replaced with a story focusing on one of Sonic's long-running enemies, Metal Sonic. The Underground Epilogue was put on hold indefinitely, possibly due to its lack of relevance to current Sonic games and the comic series as a whole.