Series 3 (Season 4)

*the Newest Ally and the Return of Shadow
*In the begining of this season 4 saga, which is based on Sonic Heroes and the first appearence of E-123 Omega and Metal Sonic, Rouge sneaks into one of Eggman's bases after hearing that Doctor Eggman is accumulating valuable treasures. Instead, she finds Shadow the Hedgehog, thought to be dead, encased in a capsule and without memory of who he is. Also locked in the same chamber is a robot, E-123 Omega, who, angered on his confinement, is bent on destroying Eggman's robots to prove his power. Realizing that all their problems lead to Eggman, the three antiheroes team up.(Just so you know, Team Sonic is the title team of Sonic Heroes[Though most people know that already]) Sonic, Tails, and Knuckles receive a letter from Doctor Eggman, telling them of a new ultimate weapon that will be ready within three days. Challenging the team to stop Eggman, Amy searches for Sonic and hopes that defeating Eggman herself will impress her speedy boyfriend. Meanwhile, Big is searching for his amphibian friend, Froggy (continued from Sonic Adventure), and Cream is seeking out Cheese's lost brother, Chocola. With a picture in the newspaper of Froggy and Chocola being carried off by whom they believe to be Sonic as their only clue, the three join up to find their lost companions. As you know, Team Chaotix is composed of quiet, ninja-like, and smart, Espio the Chameleon; their headstrong, music-loving leader, Vector the Crocodile; and the air-headed flying ace Charmy Bee. They now run their own detective agency; mysteriously, they one day receive a mysterious package with a walkie-talkie in it. A stranger starts to give the team instructions through the walkie-talkie and claims that if the job he has for them is completed, the Chaotix will be "rewarded handsomely". Espio is wary of the job, but Vector sees the opportunity to make money. Vector reminds him that Team Chaotix "never turns down work that pays." Later in the saga, all the teams realize that Eggman was not the villain, but in fact the being they were looking for was Neo Metal Sonic, who had now used the data he had absorbed from Teams Sonic, Rose, Chaotix and Dark and transformed into the Metal Overlord. The teams miraculously happen to have all 7 Chaos Emeralds, which Sonic uses to transform into Super Sonic. Doing this, he had transferred some of his superpower into Tails and Knuckles.After trying to defeat Metal Sonic, Sonic tells his foe, "The reason I can't beat you is is because we are 'Sonic Heroes!' "Later episodes of this saga had their focus on Shadow the Hedgehog. In the beginning, Shadow remembers only three things: his attempt to escape the ARK—a large space station—with Gerald Robotnik's granddaughter Maria, Maria's death by gunshot from G.U.N. soldiers, and his name. He wonders whether he is actually an android. The game begins in the city of Westopolis, which the Black Arms is invading; Black Doom tells Shadow of an old agreement to bring him the Chaos Emeralds. Stunned that Black Doom knew his name, Shadow realizes that he must find the Chaos Emeralds to learn his past. After collecting all the Chaos Emeralds, Shadow realizes that Black Doom had used himself to get all Chaos Emeralds to be able to transform and told shadow that he was created by usin doom's DNA to give him power from the professer then shadow chases after him and finds himself watchin maria and gerald and he used the poers of the Chaos Emeralds transform to super shadow and killing black doom sending the comet in space and destroy it.in the next episodes
*Doctor Eggman tears Earth apart using Chaos Control, and Sonic and Tails are separated from Knuckles, Amy, and Cream. The two begin to search for their friends and the source of the trouble (which is the separation of the Chaos Emeralds). But like always, Eggman is making everything from doomsday devices to kooky contraptions and is trying to vanquish Sonic once and for all. The most dangerous of these is Gemerl, a super fighting robot made from the remains of Emerl.
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*The Babylon Rogues
*At midnight in Future City, Sonic the Hedgehog, Miles "Tails" Prower and Knuckles the Echidna are searching for a Chaos Emerald. As Tails finally detects it on his radar, glass shatters in the background and from the city bank fall the legendary band of thieves known as the Babylon Rogues. The thieves were riding on Extreme Gear, floating airboards. Sonic attempts to pursue them, but is outmatched on this new technology and the three mysterious characters fly away with the Chaos Emerald in tow.
*The next day, Sonic, Tails and Knuckles see a familiar face on the monitors. Doctor Eggman announced that he has created a race called the "EX World Grand Prix". It is a competition to see who is the best on Extreme Gear. When Eggman announces that the prize is all seven of the Chaos Emeralds, and that the current racers are the same thieves they met up with yesterday, the three enroll themselves in the tournament. As the Grand Prix goes on, rivals are made. Jet thinks that he is superior, saying he is faster than Sonic. Tails gets mad at Wave when she insults his Extreme Gear. Knuckles and Storm almost get into a fight creating a rivalry between the two.
*At the end of the tournament, Jet uses the Chaos Emeralds to empower an ancient key and reveal Babylon Garden, the ancient ruins of his ancestors. Eggman quickly reveals his intent to steal the Babylonian treasure and flies off, with the Rogues and Sonic and friends in pursuit. Although Sonic is able to stop Eggman and settle his score with Jet, the adventure continues when the Babylon Rogues unleash a ancient spirit from Babylon, the Babylon Guardian. Once the Guardian is defeated, the true treasure of Babylon is revealed, surprising everyone with its contents, especially Eggman. The Babylon Rouges and Sonic's group part ways, but not before Jet vows to return and face Sonic again,later Sonic hears of a legend regarding an artifact known as the "Ark of the Cosmos", an item that can control gravity. However, the Babylon Rogues, Sonic's well known rivals, are also after the legendary artifact. This sets off a war between who gets the artifact, now leading them to settle their dispute by having an Extreme Gear competition.
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*Traveling through Time and Space
*Silver lives 200+ years in the future where telekinetic powers are the norm. [5] In the future, Silver's world is completely destroyed by what is known as the "Flames of Disaster". He and his partner and best friend, Blaze the Cat, battle an immortal being known as "Iblis". After Silver becomes frustrated over the fact that Iblis always revives himself, a mysterious figure named Mephiles suddenly appears and, along the way, informs Silver of the time when Iblis was first unleashed onto the world. He tells him that Sonic was the main cause of the "Flames of Disaster" and refers to him as the "Iblis Trigger". Mephiles sends himself along with Silver and Blaze back in time to the point when "the Iblis Trigger was alive" to prevent Sonic from destroying the future. Upon reaching the present day, Silver realizes that he got separated from Mephiles and Blaze and, elsewhere, Blaze makes the same realization,Soleanna is ruled by Princess Elise, who is the keeper of a dark secret, the "Flames of Disaster", which involves the Chaos Emeralds. The game opens up while the citizens of Soleanna are celebrating the Festival of the Sun; while lighting the ceremonial torch, Elise apparently suffers a terrifying hallucination of the city in flames with a demonic creature composed of molten magma in the center and, as fireworks go off, multiple missiles hit the ground around her, and Doctor Eggman arrives with a small army of robots, revealing his intentions to kidnap Elise, who is, of course, unwilling to comply. At that moment, Sonic arrives, destroys a small number of Eggman's robots, and escapes with Elise while Eggman orders his robots to fire on him. As Sonic escapes, we see a white-furred hedgehog named Silver, who speaks of finally locating the "Iblis Trigger" . While running through the city, a confused Elise asks Sonic why he is helping her, but he replies that he has "no special reason". Soon afterwards, more of Eggman's robots attack them, and Eggman successfully captures Elise in the Egg Mobile while Sonic is distracted fighting them. As Eggman returns to the Egg Carrier, Elise throws Sonic her Chaos Emerald, which he catches and assures her that he will rescue her. Unconcerned, Eggman simply decides to let Sonic hold onto "his" Emerald for the time being, and escapes on board the Egg Carrier as Sonic looks on When Silver has his sights finally set on the Iblis Trigger, he is interrupted by Amy, who mistakes him for Sonic. Amy quickly develops a friendship with Silver, and she promises to help him find who he is looking for, not realising that he plans on finding and killing Sonic,
*The next morning, while attempting to gather information on Eggman's whereabouts, Sonic runs into Tails, who has apparently been helping to clean up the city after Eggman's attack. Tails reveals that he knows that Sonic had attempted to save Elise, and offers to help Sonic out however he can; while he doesn't know what Eggman's up to this time, he knows it isn't good .
*Sonic and Tails chase the Egg Carrier to Wave Ocean, a nearby beach, but are unable to catch up to it before it escapes. Defeated for now, Sonic and Tails decide to return to the city,In the events after Shadow the Hedgehog, he appears to have joined GUN. His story opens in the midst of a rescue mission of Rouge the Bat, who was sent to retrieve the "Scepter of Darkness" from Eggman's base, and had not been heard from since. Shadow invades the base and finds Rouge in the midst of accomplishing her mission. They escape to the site that was formerly the castle of Soleanna's kings where they are confronted by Dr. Eggman, who attempts to retrieve his stolen property. Eggman's robots swoop down to attack, and in the heat of the battle, the Scepter of Darkness is completely shattered. With the seal crashed, Mephiles is freed,
*After saving a young girl who ended up trapped on a rooftop, Sonic and Tails make their way to the Dusty Desert, where Eggman has been seen, and landing right in the room where he is keeping Elise, who is quite glad to see them (or at least Sonic). At that moment, Eggman arrives and unleashes his Egg Cerberus robot on them, which Sonic defeats. Afterwards, Eggman sends a massive amount of robots after them, and Tails creates a diversion in order to allow Sonic and Elise to escape unnoticed.
*After escaping the desert and entering the plains, Sonic comes to a stop. Elise thanks Sonic for his help, but then notices a wound on his arm. Despite Sonic's insistence that he's fine, Elise bandages his arm with a handkerchief. Blaming herself for Sonic getting hurt, Elise apologizes, but Sonic merely tells her to smile, stating that her smile is all he needs to keep him going. While walking through the plains, Elise fills Sonic in on the Flames of Disaster, Solaris (the sun god honored by Soleanna), how they had nearly faced the full force of his anger, and how she had lost her father in the incident, and fears what would happen if Eggman makes history repeat itself. Without warning, Sonic grabs Elise's hand and runs through the plains with her. Afterwards, Elise lightens up, and Sonic gives her some useful advice.
*However, upon their return to the city, Sonic and Elise are attacked by Silver, who claims that Sonic's actions will condemn the world, and they battle.
*Sonic initially has the upper hand, but Silver catches him off-guard and psychokinetically throws him into a building, incapacitating him. Silver demands to know how someone as weak as Sonic apparently is could destroy the world; Sonic asks what he means, but Silver decides that it doesn't matter, as long as the "Iblis Trigger" is destroyed. However, Eggman capitalizes on Sonic's distraction to kidnap Elise again, and Sonic attempts to run after them, but Silver isn't about to let him run off. Silver knocks him down with his psychokinesis, and is about to deliver the coup de grace when Amy suddenly steps in. Silver somehow knows Amy, and orders her to move, but she isn't about to let him hurt Sonic any more. Sonic takes advantage, and, after thanking Amy, runs off after Eggman,Resurrected in the likeness of Shadow through his shade, Mephiles the Dark introduces himself and hints at past history that the two shared. Mephiles, using a time warp, similar to Chaos Control, flings Shadow and Rouge to a future on the brink of collapse. When they arrive, they are first perplexed, but before long, they find some disturbing answers. Along the way, they find an inactive, dusty E-123 Omega, lying in stand-by mode for hundreds of years for an unknown reason. They discover that they are in the distant future, destroyed by the demon Iblis. Shadow and Rouge meet up with Sonic, Tails, and Knuckles, who were sent to the future by Eggman's latest machine. Sonic and Shadow conclude that they must use Chaos Control to get home, and set out to locate the Chaos Emeralds. After a confrontation with Iblis, they succeed in finding two Chaos Emeralds and successfully create a time warp to the present. Sonic and company go back to their time, except for Shadow, who stays to confront Mephiles. Upon catching up with Mephiles, he reveals to Shadow that the humans, looking for someone to blame for the destruction of the Earth, saw Shadow responsible for the catastrophe. Shadow is hunted down, defeated, and trapped behind an energy seal. Mephiles tempts Shadow to join him to gain vengeance upon the humans, but Shadow refuses, at which point Mephiles transforms into his second form, a more powerful crystalline monster, and the two engage in battle, Silver questions whether or not he should kill Sonic just for the sake of saving the future. To find more answers, Silver and Blaze journey to Eggman's base. After resolving that he should kill Sonic, Silver finds Mephiles, who tells him that Sonic is at the terminal station. Silver heads there and fights Sonic again, only to have Shadow save Sonic just as Silver was about to finish him off. Silver mistakes Shadow for Mephiles and Shadow corrects him. The two battle it out and actually induce a Chaos Control using the two Chaos Emeralds they have in their possession to teleport into the past and find out what went wrong. Silver and Shadow arrive at the perfect moment, during the explosion that releases Mephiles and Iblis in the first place and, ultimately, causes Duke Soleanna's death,
*After a brief encounter with a group of Soleannan soldiers, who accept Sonic's help despite initial reluctance, Sonic enters the warehouse district of the New City and meets up with Tails and Knuckles, the latter of whom gives him a holographic message that he received from Eggman. Eggman negotiates a deal; if Sonic comes to the White Acropolis and gives Eggman the Chaos Emerald that Elise had given him earlier, then Eggman will let Elise go without a fight. Though Tails and Knuckles are both positive that Eggman is setting up a trap, Sonic decides to go anyway, planning to "thank" Eggman for telling him Elise's whereabouts .
*Sonic, Knuckles, and Tails fight through the White Acropolis and enter the room where Eggman and Elise are. Sonic obediently puts the Chaos Emerald onto a small pedestal, but, unsurprisingly, Eggman goes back on the deal and activates a force field, trapping Team Sonic within. At that moment, Eggman activates his Solaris prototype (the name of which surprises Elise), and Sonic and co. vanish into thin air. The minute they vanish, Eggman assures Elise that Sonic, Tails, and Knuckles are still alive (for now), but have been transported to another time period; however, Eggman does not know where they ended up, as he needs a power that Elise apparently possesses and all seven Chaos Emeralds to fine-tune the machine. Sonic, Tails and Knuckles encounter Shadow and Rouge, who are also trapped in this future. In order to return to the present, they need to create a rift in time and space, which they figure can be created if Sonic and Shadow use their Chaos Control together. While searching for Chaos Emeralds, Sonic, Tails and Knuckles encounter Silver, his friend Blaze, and Mephiles, a dark being who resembles Shadow, tells Silver that Sonic is the one responsible for the future's devastation, and takes them back in time to kill Sonic. Sonic learns from a computer file that Elise was killed when Eggman's battleship exploded two days after she was kidnapped. After retrieving a pair of Chaos Emeralds, Sonic and Shadow create the space-time rift, allowing them to return to the present.
*Sonic returns for Elise, but is once again attacked by Silver, also allowing Eggman to kidnap Elise again. Fortunately, Shadow arrives to confront Silver, allowing Sonic to rescue Elise, and he returns her to her castle in Soleanna. Later, Eggman arrives in his battleship and threatens to destroy Soleanna, and Elise willingly surrenders herself to him to protect her people. Eggman explains to Elise that in order for his plan to take over the world to work, he requires the seven Chaos Emeralds and the dormant power of the Flames of Disaster within Elise to awaken Solaris, allowing him to harness the sun god's power over time.
*On his way to rescue Elise, Sonic encounters Silver once more who, instead of attacking him, expresses concern for Elise as well. The two hedgehogs team up, but before they reach the battleship, it malfunctions, crashes and explodes, just as Sonic feared. However, Sonic and Silver realize they can use Chaos Control to travel back in time to the previous day, before Eggman's battleship launched. Sonic travels to the past alone and reunites with Elise. Defeating Eggman (who battle's Sonic with the Egg Wyvern) one last time, Sonic escapes the exploding battleship with Elise,
*Rouge, in the present, realizes that Shadow is alone in the future fighting Mephiles, without a Chaos Emerald. She searches for E-123 Omega, gives him a Chaos Emerald, and tells him to sit and wait in stand-by mode until the distant future becomes the present, and to assist Shadow fighting Mephiles. Shadow, at Mephiles' mercy, is rescued by Omega, who gives him the Chaos Emerald and helps Shadow fight Mephiles. Defeated, Mephiles flees to the present through a time warp and Shadow and Omega follow him to the present. Omega pursues Mephiles, and Shadow finds Rouge, who informs him that Dr. Eggman is apparently searching for him. Shadow concludes that Eggman is searching for Mephiles, and goes to interview the doctor. Upon locating Eggman's base, Eggman tells him that, to understand why he wants Mephiles, Shadow must know about the accident that happened 10 years ago, the Solaris Project.
*Shadow then leaves only to find Sonic, who is under attack by Silver. Shadow rescues Sonic, who runs away with Princess Elise, and Shadow engages in a fight with Silver. Shadow is able to overcome him by freezing time so Silver cannot defend himself. Refusing to just be defeated, Silver also induces Chaos Control, to Shadow's shock. Shadow tells Silver that in order to understand more about Mephiles and Iblis, they would have to use the warp and witness the accident themselves. So the two of them, using the Emeralds, open a time warp to 10 years ago, the Solaris Project. They witness the Solaris Project's failure at hand, and watch as Iblis and the original Mephiles, a dark puddle, emerge, opening Silver's eyes to Mephiles' deception. Duke Soleanna tells them that the demons must be sealed, so he gives Shadow the Scepter of Darkness. Shadow goes to capture Mephiles, and Silver goes to capture Iblis. It is here that Shadow finds out why Mephiles knows him; it was Shadow who sealed him in the Scepter of Darkness in the first place. With the demons sealed, Shadow leaves the Scepter in the past since he knew where it would end up in the present day. Silver and Shadow return and Shadow rushes off to find Rouge to tell her what he learned about Mephiles. Shadow finds Rouge, and tells her to find out what the Scepter of Darkness, Mephiles' seal, was made of, so they can create another one.
*Elsewhere, Omega has found Mephiles on the beach and defeats him once again, but Mephiles laughs and tells Omega that the reason he can defeat him so easily is because he was built to defeat Shadow later on. Omega refuses to acknowledge the truth at first but after Mephiles escapes again he admits to Shadow and Rouge that he was the one that sealed Shadow in the future. Shadow, Omega, and Rouge chase Mephiles to a desert temple with a new Scepter of Darkness, but the evil Mephiles has already found the yellow Chaos Emerald. After Shadow fights him and gains victory, Mephiles reverts back into his original form, a puddle of darkness. Shadow attempts to seal him in the new Scepter of Darkness, but it shatters and Mephiles is able to free himself. Mephiles reveals that what worked ten years ago no longer does because he is using Shadow's form. Mephiles uses his powers to summon a giant clone army of himself and he attempts, once again, to trick Shadow by convincing him that he is a fool for continuing to protect those who will eventually seal him away. In response, Shadow replies, "If the world chooses to become my enemy, I will fight like I always have!" Mirroring a similar ability from Sonic X, Shadow removes his power rings, and, in a huge burst of energy, defeats the Mephiles clones with his allies and the story ends as a cliffhanger,
*Shadow seals the original Mephiles in the Scepter of Darkness and Silver learns that to defeat Iblis, they must seal him inside someone's soul, making that person into a sort of vessel. Silver also learns more of Mephiles' intentions and discerns that he lied to him about Sonic being the Iblis Trigger. Upon returning to the present, he meets up with Blaze, shares his findings and has a change of heart, resolving to help Sonic save Elise. Unfortunately, Sonic, Silver and Blaze arrive too late, as they watch the Egg Carrier explode causing the death of Elise and possibly Eggman as well. Silver then tells Sonic that if they use Chaos Control, Sonic can save Elise. Sonic rushes into the past to save Elise and gives Silver a Chaos Emerald for him to return to the future. After journeying back to the future, resolved to finally defeat Iblis, Silver and Blaze fight Iblis and successfully defeat him. When Silver tries to seal him, though, by using himself as a vessel, Silver is unable to use himself as a vessel to seal Iblis. As the ultimate sacrifice, Blaze uses herself as the vessel, sealing both herself and Iblis into another dimension to save both Silver and her world. Disturbed over the loss of a good friend, Silver becomes upset, unsure if what he had set out to do was worth what he had to pay in the end. Nevertheless, light returns to Silver's world, and the game ends with him glaring at the Chaos Emeralds Blaze sealed herself with,
*The Last Story begins with Mephiles sporting an evil look as he finally seems prepared to merge with Iblis and destroy the world. Using his Purple Emerald, Mephiles blinds Sonic and Elise, who were continuing their stroll from where Sonic's storyline left off. When they are distracted, he rises from the ground and launches an energy beam (dubbed the "Dark Chaos Lance") that impales Sonic through the back, killing him instantly. Elise frantically attempts to revive Sonic, but upon discovering that he is indeed dead, cries in despair, releasing Iblis. At this point, Mephiles absorbs Iblis, Mephiles then mutates into a monster known as Solaris and then creates his own world to destroy time itself. Continuing from where Shadow's story ended, he and his friends recover from their battle with the Mephiles clones and Shadow notices the Green and Yellow Chaos Emeralds that Mephiles left behind. These create a blinding flash that send Shadow, Rouge and Omega to the time-space rift formed by Solaris. Meanwhile, in Soleanna, Amy, Tails, and Knuckles notice a large bright light that engulfs the city. When the light fades, they realize that they have also been transported to the rift where all of the previous levels in the game exist. Amy is the first to spot Silver, who has been teleported here as well by the Chaos Emeralds that Blaze used to seal Iblis within her. Everyone notices that they have all been brought to this strange place, even Dr. Eggman. As they try to understand what was happening, Dr. Eggman reveals that Iblis' seal has been broken. It is then that they turn and see Elise, cradling Sonic's body in her arms. After a few realizations, Eggman reveals that Solaris is about to bring about the end of the world by destroying time itself, and that it cannot be defeated in the present as it exists in all timelines. Silver refuses to give up, and suggests that they team up and destroy Solaris all at once, but Shadow quickly shoots that possibility down, stating that, with Sonic dead, Solaris is completely unstoppable.
*With Amy upset over Sonic's death and their impending doom, Elise recognizes a familiar wind in the air that makes her come to believe that Sonic may not be entirely dead yet. Silver, furthering Elise's observations, explains that they can use the Chaos Emeralds to revive him. After a lengthy search on the part of Tails, Omega, Knuckles, Silver, Rouge, Amy, and Shadow, they find the Chaos Emeralds and revive Sonic, with Elise's kiss transforming him into Super Sonic. Super Sonic uses his power to transform Shadow and Silver into their super forms. Together, the three hedgehogs fight Solaris. The three use a chaos control on Solaris causing the monster to be torn apart in a time loop. Sonic, now back to normal, travels with Elise to a point in the past where they find the "Flames of Disaster" and its birth. Elise realizes that if she puts out the Flames, Solaris will never exist, but she and Sonic will never meet each other, which Sonic confirms. Overcome with despair, Elise begins to cry and shouts that she doesn't care what happens to the world as long as she and Sonic are friends. Though Sonic is clearly unhappy about this as well, he tells Elise to just smile and manages to convince her to abandon their meeting. She confidently puts out the Flames, eliminating Solaris from existence once and for all.
*Time reboots back to the Festival of the Sun, only Eggman doesn't attack this time around; in effect, none of the games events ever actually happened. Elise is in her boat waving the audience as Sonic runs through the public, the "wind" of his speed making Elise lose one of the feathers in her hair. A maid asks her if everything is alright, and Elise says that she thought someone was calling her. Another maid replies that it's just the wind, and Elise says that it might be, but that it felt familiar somehow, and smiles, apparently knowing who it was. She continues with the festival as Sonic watches from a rooftop. The game ends with Sonic watching Elise's feather flying into the night, also smiling.
*The events of the game were erased, although Sonic and Elise nonetheless appear to have a recollection of them,in the next further episodes The game begins Eggman turning Tails, Amy Rose, Rouge, and the Master Emerald into cards with his new device. Sonic and Knuckles arrive on the scene, and find out what has happened. Knuckles, bent on saving the master emerald, tells Sonic that teamwork is out of the question and that he needs to get to Eggman first. Sonic snickers and says that he likes a good challenge. Meanwhile, Shadow receives a distress signal from Eggman. Suddenly, a mysterious hedgehog named Silver appears from the future, and tells Shadow he needs to get to Eggman first. After numerous conflicts, it is revealed that Dr. Eggman is in fact, Eggman Nega. After one final battle with Sonic, Knuckles, Shadow, Silver, and Metal Sonic, Nega is defeated, everyone is reverted to their original forms, and Silver returns to the future with Eggman Nega,
*The Chao have gone missing and Sonic the Hedgehog and Miles "Tails" Prower immediately get on the case to find them. It turns out that Eggman Nega (once again masquerading as Doctor Eggman) has stolen the Chao and hidden them inside a haunted mansion. His plan is to feed them to an inter-dimensional beast called the "Ifrit" who needs to eat them to become invincible. After that, he plans to release the Ifrit into the world in order to destroy it. However, to open the portal to Ifrit's world, the seven Chaos Emeralds are required. Eggman Nega thusly hires Rouge the Bat to collect the Chaos Emeralds. The Master Emerald has also gone missing (again) and Knuckles the Echidna teams up with Rouge to find it.
*Meanwhile, Silver the Hedgehog has returned from a now ruined future caused by the Ifrit. In order to make a new future, he steals the Chao that are left in order to hide them. He crosses paths with Espio the Chameleon, who is also on the case of the missing Chao, and they work together to save the world. The real Dr. Eggman sends Metal Sonic to find Shadow the Hedgehog, and lets them know of Nega's plans. Nega has learned of the Ifrit by accessing Professor Gerald Robotnik's journals, and Shadow and Metal set out to get the Chaos Emeralds before he does. Eggman uses Metal Sonic as a communication device to aid Shadow along the way.
*All of the teams meet up at the Mystic Haunt Zone where the portal to Ifrit's world is. Despite Rouge only collecting six of the Emeralds, the portal opens anyway and Nega dispatches his new Metal Sonic version 3.0 to awaken the Ifrit. Despite possessing Sonic, Tails, Knuckles, and Rouge (depending on who the player plays as), the Ifrit is defeated by the other teams. Shadow and Metal Sonic close the portal and seal themselves and Eggman Nega in Ifrit's dimension. Metal Sonic reveals that the seventh Emerald was stored in his chassis and he and Shadow use Chaos Control to exit that world. Nega is left trapped under some rubble.
*Sonic and Tails take all the Chao to a Chao Garden, and Knuckles finds the Master Emerald in the Emerald Detector that he and Rouge stole from Eggman Nega. Rouge steals the Master Emerald and runs, and Silver returns to what he hopes is a happy future. Espio has to answer to Vector the Crocodile who has spent their client's advanced payment on late rental fees,Blaze the Cat lands somehow in Sonic's world from her own dimension (unofficially dubbed the "Sol Dimension" by fans). She has seven Sol Emeralds—similar to the Chaos Emeralds—but they are stolen by Doctor Eggman. She then makes it her goal to retrieve them; this is where Sonic meets her (the Chaos Emeralds were stolen from him by Eggman Nega.) While she is searching for the Sol Emeralds, Sonic is searching for the Chaos Emeralds. Blaze meets Cream the Rabbit, and is surprised by Cream's politeness. Meanwhile, Tails learns that Blaze's world and Sonic's are beginning to merge somehow. Sonic begins to grow suspicious of Blaze and, along with Tails, looks for her. Soon, Sonic and Tails find Blaze and Cream. Sonic questions Blaze about her nature, but she refuses to give any information and leaves with Cream. Sonic follows her, and when he meets her on Eggman Nega's base, it is revealed that Eggman and Eggman Nega are working together to collect both the Chaos Emeralds and the Sol Emeralds. She declares that she will destroy Eggman Nega. When Sonic once again questions her nature, she turns on him and fights him. During the fight, Blaze tells Sonic that she is the only one who can save their worlds, so he should help her. However, Sonic wins the fight, and Blaze realizes the error of her ways. Eggman kidnaps Cream, and Blaze goes after him while Sonic takes on Nega. Sonic collects the last of the seven Chaos Emeralds; and meets Blaze, who has failed to rescue Cream and to restore the two worlds. Sonic and his friends help Blaze realize the meaning of friendship, and she turns into Burning Blaze—apparently her answer to Sonic's Super Sonic form—while Sonic turns into Super Sonic. They fight Eggman and Eggman Nega and defeat them. The two worlds are restored, Sonic and Blaze chat for a minute about how they'll miss one another especially Cream who'll miss Blaze. Blaze tells Sonic it's for the best. She leaves like this. She thanks Sonic for his help and friendship, etc. But before she goes off Sonic stops her and says they'll meet again and she replies "yes...again" she slowly goes over to Sonic as Sonic slowly goes up to her (both still in super form), they stare at each other for a while and holds hands as their dimmensions pull them back to their rightful worlds forcing Blaze into her own world Sonic as well. As she flies there, she realizes that she truly understands her powers. Later, on Sonic's planet, Cream is crying because she misses Blaze, but Sonic tells her that Blaze promised to return someday. (Sonic meets Blaze again in Sonic Rush Adventure, but Cream does not.),
*Sonic and Tails were tracking a mysterious, unknown source of energy, when they were sucked into a tornado. The two find themselves on an island, where a raccoon girl named Marine wakes them up and takes care of them. Marine tells our dynamic duo that she wants to go adventuring. So Sonic and Tails set off for different islands and the adventure begins.
*Along the way, Sonic will run into Blaze the Cat, who's trying to save the Jeweled Scepter from a band of pirates led by Captain Whiskers. It's later shown that Eggman & Nega worked together to unleash the Jeweled Scepter, and Sonic ends up beating them, able to return home.
*At the end Sonic & Blaze found out that the emeralds brought them together once again. Tails made himself a ship to bring Sonic and Tails home and Sonic & Blaze once again promised to meet again one day.
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*Sonic Chronicles
*Taking place some time after the main series, as revealed of the characters' talk about Sonic having left on a solo mission (the game was released after Unleashed on the same month), the story of Sonic Chronicles is split into two acts, which are further divided into several chapters. The first takes place in Sonic's world, with the team attempting to unravel the situation they are in, whilst also stopping the Master Emerald from being taken. The second act sees Sonic and the team traveling to another dimension, called the Twilight Cage, in order to stop a new threat to their own world.
*The game opens by detailing Eggman's defeat some time ago, with Knuckles, Amy, and Sonic distracting the scientist while Tails sabotages Eggman's ship, the Egg Carrier, which falls to Eggman's base in Metropolis. Eggman was presumed dead. In the present, Sonic is on vacation when he receives a call from Tails, stating that Knuckles has been kidnapped. Traveling to Central City with Amy Rose to meet with Tails, they are escorted by Rouge the Bat to G.U.N. headquarters to meet the G.U.N. Commander. He informs them that they, along with the Chaotix, have been watching the Marauders for some time and have managed to locate their hideouts, but searching the hideouts for Knuckles proves fruitless. However, Tails manages to fix broken communicators found at each site, which allows them to pinpoint the location of the Marauders' base to the Mystic Ruins.
*Traveling by Tails' Tornado plane to avoid the soldiers guarding the Ruins, they meet up with Big the Cat who helps them locate the base, where they find Knuckles escaping from some robots. Leaving the base, they find Angel Island gone. Back at Tails's workshop, Tails develops an Eggman Tracker to locate Eggman and find out his connection to these events. After searching around previous areas for a while, including running into Shadow, Tails assembles a set of Eggman's devices the group discovered along the way to disable a force field they had located in Green Hill during their search. Inside, they find Eggman, who claims to be a reformed character, revealing that he survived the crash of the Egg Carrier by anticipating his own defeat and making a robot that would rescue him and nurse him back to health. Eggman informs the team that Angel Island is being pulled to Metropolis, the location of the Marauders' main base.
*Taking the Tornado once more to go to Blue Ridge Zone in order to enter Metropolis from there, they meet Shadow and join up in order to find E-123 Omega, whom Shadow was looking for, but are attacked in Metropolis by Shade and her Marauders. Shade reveals herself to be an Echidna of the Nocturnus Tribe, leaving Knuckles, supposedly the last of the Echidnas, shocked. After Sonic defeats her, she blocks the main pathway to Metropolis, but Eggman finds another route through a railway tunnel. Once there, Eggman tells them of a weapon in his lab that could help defeat the Marauders, provided he has the necessary parts. Dividing into two teams, one group, with Sonic and Knuckles, head to Angel Island to get the Master Emerald before the Marauders, and the other, led by Tails and Eggman, assists in making the weapon. Tails and his team develop a non-lethal weapon designed to return the Nocturnus to their unknown home. Meanwhile, Sonic's team infiltrates a Nocturnus airship headed for the island, but encounter problems when the enemy manages to disable the ship's weapon. Tails and Eggman use one of the remaining weapons in Metropolis to shoot down the surrounding ships to clear the way for Sonic, but accidentally shoot the ship on which their friends are on, sending them onto Angel Island. Once on the Island, Sonic and Knuckles confront the Nocturnus leader, the Grand Imperator Ix, who reveals his plot to take over the dimension.
*This revelation shocks Shade, who believed that Ix merely wanted to bring the Nocturnus Clan back to earth, for they had been sealed in the alternate dimension called the Twilight Cage during the Argus Event, in which all races who were taken to that dimension heard the word "Argus," and were banished there for being too dangerous. Ix's minions come close to defeating Sonic and his team, but as they are on the verge defeat, Tails and Eggman arrive to save them, using a teleporter under Metropolis to get to the Island. They use their non-lethal weapon to transport several of the Nocturnus back to the Twilight Cage. The team fights Ix, but he escapes and steals the Master Emerald (which is considerably smaller in this game), causing Angel Island to fall from the sky. Ix sends the heroes and Shade flying away. Knuckles saves Shade, as the island crashes into Metropolis. From there, the group witnesses Ix creating a wormhole which transports the Nocturnus back to their realm, ready to dominate. Tails and Eggman come up with a plan to follow him, deciding to build a vehicle that could cross into the alternate dimension. However, the collision with Angel Island knocks the city's power out. Sonic and a reformed Shade team up to restore the power, and also retrieve a Dimensional Buffer to help Tails.
*The group leaves in the vehicle, dubbed the Cyclone, while Eggman remains behind, saying that he must make sure that they can return. However, as they leave, he reveals that he has a more sinister plot in mind for the heroes. Once in the Twilight Cage, the Cyclone crash lands on a rocky planet, the Kron Colony, after being damaged during the interdimensional trip. Tails suggests that they can power the ship up with a Chaos Emerald, and locates one on the colony. The team are confronted by the Kron, giant rock creatures who believe them to be Nocturnus spies. The Kron are gifted weapon makers, and were forced by Ix to create weapons and armor for his troops. The warehouse used by the Kron to produce these weapons is powered by a Chaos Emerald, and Sonic and team offer to liberate the colony from Ix's control. They manage to take the Emerald, and win the trust of the rock people, and travel onward. The Nocturnus homeworld of Nocturne is blocked off from the heroes, prompting them to visit the N'rrgal colony, home to the slug-like, energy-leeching N'rrgal people.
*The N'rrgal suck all the energy from the Cyclone, but Tails discovers that another Chaos Emerald is located on the planet. The N'rrgal queen meets the team and tells them that the bitter rivals of the N'rrgal race, the Zoah, are in possession of a powerful weapon that they cannot risk confronting in battle. She offers their Chaos Emerald in return for the Zoah's weapon. Sonic and his team then head to the Zoah colony, where they must find and dispatch this "weapon." Upon talking to the Zoah leader, the team discovers that they are in allegiance to Ix, but only because he defeated the chief in single combat, and according to Zoah law, whoever defeats the leader can have any one favor from them, even the service of the entire race. Sonic challenges the leader to a battle, and frees the Zoah from their servitude. The leader gives them a Chaos Emerald, revealed to be the weapon given to them by Ix. The team realizes that Ix gave both the Zoah and N'rrgal Emeralds to keep the two races in check for his plans. Upon revealing this information to the leaders of the two races, they gain the trust of the Zoah and N'rrgal.
*Tails finds two more Emeralds in the Voxai Colonies. The Voxai are a race at peace, capable of mental domination. However, the Overmind, a group of three Voxai who rule the colonies, have taken control, corrupting the minds of the citizens. The team meets Thebes, a citizen who has escaped the control of the Overmind. He tells them of the source of the Overmind's power, the Chaos Emeralds, with which they were able to dominate the minds of all the people in the Voxai colonies. Thebes leads them to a teleporter to take them to the second colony, which is guarded by a psychic field to block out trespassers. Once there, they confront the Overmind, and defeat them. Thebes becomes the new Voxai leader, and gives them the two Chaos Emeralds given by Ix. With the last two emeralds on Nocturne, the team gathers the leaders of the Kron, N'rrgal, Zoah, and Voxai to the Kron Colony, where they all team up and come up with a plan to invade Nocturne. The united races, led by Sonic and Team, launch an assault on the Nocturnus homeworld.
*The Voxai find weaknesses in the force field around the planet, while the N'rrgal suck energy from it, while the Zoah launch a missile created by the Kron that can penetrate it. Sonic and his friends pass through the opening made by the united races, and encounter Charyb and Scylla, two Gizoids who wield the elements of water and fire, respectively, each with a Chaos Emerald. The group splits in two, Sonic and Tails leading one group and Knuckles and Shade leading the other. Knuckles is reluctant to kill Ix, believing that the Nocturnus can be saved, but promises not to let this belief interfere with the mission. The two teams lower the force field around Nocturne, allowing the forces from the other Twilight Cage races. Sonic's team destroys Charyb, while Knuckles' team kills Scylla, each winning a Chaos Emerald. Knuckles's team confronts Ix in his throne room, while Sonic's team comes in from a balcony to witness the fight. Sonic at first believes that Knuckles is betraying them, but is proven wrong when he watches them fight. Knuckles wins the fight, followed by Sonic fighting Ix, causing Ix to run. Sonic's team then gets a second chance to fight him, and also emerges victorious while Knuckles retrieves the Master Emerald. Ix uses the Nocturne to achieve a Super Transformation. Sonic uses the Chaos Emeralds to become Super Sonic, and defeats him.
*As Nocturne begins to fall, and is nearly destroyed, the team escapes to the Cyclone and heads back to Earth. Once back in Metropolis, they find Eggman waiting for them with a rebuilt empire, who immediately attempts to shoot them down. The game ends with Sonic, Tails and Omega rambling about the makers of the game, and the team about to confront the new Eggman Empire.
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*World Tour
*Sonic confronting his nemesis, Doctor Eggman, bounding around a fleet of spaceships, and transforming to Super Sonic - Sonic transformed using the power of the Chaos Emeralds - in order to stop him, destroying Eggman`s mech and knocking Eggman himself to the ground. As a trap, Eggman pretends to plea for mercy. When Sonic is close enough, he activates his laser, which traps Sonic in the center and begins drawing the Chaos energy out of Sonic and the Emeralds in a fashion that is clearly extremely painful for Sonic. After the laser is charged, Eggman fires it at the earth to wake a monster known as Dark Gaia, splitting the planet. The dark energy of the Emeralds is brought out by the ray, transforming Sonic into a monstrous version of himself and rendering the Chaos Emeralds gray and powerless. Eggman then opens an airlock which sucks Sonic and the drained Emeralds out into space and down to Earth. While Sonic is saved from a fatal landing due to an unknown energy source, he still ends up taking a heavy fall, landing on top of a flying dog-like creature whom Sonic names Chip. The resulting impact causes Chip to lose his memory (which Sonic thinks is his fault). Sonic agrees to help Chip restore his memory during his journey.
*After exploring the city of Apotos, Sonic and Chip run into Tails, who reveals that Professor Pickle of Spagonia University may be able to help them. Once they reach Spagonia, they discover Eggman has kidnapped Professor Pickle for his knowledge on Dark Gaia. After traveling to Mazuri and freeing him, Professor Pickle explains the nature of Dark Gaia and reveals that restoring power to the Chaos Emeralds via the Gaia Temples would help the planet return to normal. Sonic then sets out to the seven Gaia Temples to restore the emeralds and reassemble the planet. All the while, Dr. Eggman makes plans to reassemble Dark Gaia and finish Eggmanland.
*During the restoration of the sixth Chaos Emerald, it's revealed that Chip is in fact Light Gaia, the opposite of Dark Gaia, and he lost his memories because, like Dark Gaia, he was prematurely awakened by Eggman's laser; likewise, Dark Gaia has not yet been fully reborn due to his premature awakening, and Sonic must stop Eggman before Dark Gaia's full powers return. At this point, Sonic travels to the location of the last temple, over which Eggman has built Eggmanland using Dark Gaia's power. While Sonic is able to restore the last emerald and defeat Eggman's newest mech, Dark Gaia becomes complete, knocking Dr. Eggman out of the way. Chip uses the Gaia Temples to form a body to combat Dark Gaia with, and he and Sonic hold off the beast, but Dark Gaia manages to take its final form. Sonic then transforms into Super Sonic and take Final Dark Gaia down, but the battle leaves him too drained to escape. As the final continent moves back into place, Chip flings Sonic back to the surface while he remains behind. After Sonic wakes up, Chip's necklace and some parting words are found on the ground. Sonic then picks it up and puts on the necklace as a bracelet to remind them of their adventures together. The game ends as Sonic runs off with Tails, who is in the Tornado, towards another adventure
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Night of the Vampire
*this is a special in Sonic X
*it begins with a young girl named Kennade decorating the town of Babylon with Jet Wave Storm and Sonic's help for the Starlight Festival til Silver comes along warning the decorators that a new string of bats has broken out Kennade telling Silver she knew Shadow (who was bitten by one) shows up telling Silver he knew as well.
*Confused about the bats Rouge checks the Babylon Library where she finds the species of the bats and the effects of the bite (which Kennade and Sonic are shocked to learn the new species are vampire bats and Shadow had been bitten by one Knuckles was reading the book on vampires (which Rouge takes away and throws around the room) 
*as the Babylon Rouges let Sonic Rouge Shadow Knuckles and Kennade stay before the night of the Starlight festival the other 4 get shocked after Shadow experiences the first 3 effects of bites itchiness at the site of the bite-mark nose twitching and sneezing soon the night of the Starlight Festival Shadow becomes a vampire
*Soon Kennade Sonic Rouge and Knuckles sing the song They don't believe us as they looked for Shadow the starlight festival was ruined they had to use the power of light 
*aftermath of the Starlight Festival disaster Shadow awakens in his normal form with no memory of the previous night Kennade Sonic Rouge and Knuckles tell Shadow to look with them Shadow then begins crying cause of all the damage he caused during the time he was a vampire Sonic comforts him carries him home Shadow was tired he was asleep before they got home.
Day of the Dragon
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Month of the Music