Sonic the Hedgehog (Sonic the Hedgehog)/Synopsis

The history of Sonic the Hedgehog from the video game series of the same name.
==Video Games==
===Sonic the Hedgehog===
Sonic is a blue hedgehog who loves adventure and can move at the speed of sound. He has been foes with Doctor Ivo "Eggman" Robotnik for most of his life and takes it upon himself to stop the evil scientist when he invades South Island in search for the Chaos Emeralds. Sonic races through various Zones to save animals that were captured and turned into robots called Badniks while also exploring Special Zones to obtain the Chaos Emeralds. He eventually has a showdown with Eggman at Scrap Brain Zone and defeats the villain, freeing the island from his control. After collecting all six Chaos Emeralds on the island, Sonic touches one and has a vision of a seventh Chaos Emerald located on Westside Island.
===Sonic CD===
Sonic arrives at Never Lake to see Little Planet, a peaceful world where past, present, and future collide because of the Time Stones that laid hidden there. However, he discovers that the planet has been transformed into a mechanised wasteland by Doctor Eggman, who sought to obtain the Time Stones for himself. Sonic manages to work his way up to Little Planet where he encounters Amy Rose at Palmtree Panic Zone and Collision Chaos Zone. But during the latter encounter, she is kidnapped by a Dr. Eggman's latest creation; a robot double of Sonic himself called Metal Sonic.
Sonic races across Little Planet in pursuit of Metal Sonic while also collecting the Time Stones before Eggman's UFOs could find them. Moreover, Sonic utilises Time Warp Signs to travel to the past so he can destroy Eggman's Robot Transporters and Holograms to ensure a good future for every Zone he visits. Eventually, Sonic saves Amy upon besting Metal Sonic at Stardust Speedway Zone and restores Little Planet to it's original state by defeating Dr. Eggman at Metallic Madness Zone. With the crisis ended, Sonic takes his plane, the Tornado, and heads to Westside Island.
===Sonic the Hedgehog 2===
Now joined by Miles "Tails" Prower, Sonic finds himself once more facing Dr. Eggman on Westside Island as he attempts to unleash his ultimate weapon on the planet, the dreaded Death Egg battle station. Sonic battles through several Zones, from Emerald Hill to Metropolis, while acquiring the Chaos Emeralds through the Special Stages. After collecting all seven emeralds, he can utilize their power for the first time to become Super Sonic. Sonic pursues Eggman to his Wing Fortress and defeats its defense system, forcing the villain to retreat to his battle station in his escape craft. Sonic uses the craft to catch a ride to the battle station and defeats Eggman in his Death Egg Robot, resulting in the apparent destruction of the Death Egg as well.
===Sonic the Hedgehog 3 & Knuckles===
However, the Death Egg survived its apparent destruction and landed on Angel Island. Learning of the Master Emerald that the Chaos Emeralds are attuned to, Eggman tricks the guardian of the Master Emerald, Knuckles the Echidna, into believing that Sonic and Tails are after the Master Emerald. While Knuckles does what he can to delay Sonic and Tails or stop them, including ambushing Super Sonic after he sets foot on Angel Island, knocking the Chaos Emeralds out of him, taking them, and hiding them in Special Stages for Sonic and Tails to hunt down again, Sonic and Tails reach the Launch Base Zone, where the Death Egg was currently undergoing repairs, and Eggman is forced to launch it before they can get aboard, despite Knuckles trying one last time to hold them back, only to be thrown into the lake the Death Egg sat in as it started to lift off. After Eggman tries to stop Sonic and Tails when they do get aboard and fails, the Death Egg suffers heavy damage at a critical point in its launch, causing it to fall back onto Angel Island, landing on top of the Lava Reef Zone volcano. Knuckles still attempts to block Sonic and Tails from reaching the Death Egg again, but when they finally confront Knuckles in the Hidden Palace Zone and defeat him, a noise from further in causes Knuckles to arrive at the Altar of the Emeralds to find Eggman stealing the Master Emerald, intending to use it as a power source to relaunch the Death Egg. Furious at the deception Eggman pulled on him to acquire the powerful Emerald, Knuckles tries to retrieve the Master Emerald, but is swiftly electrocuted by Eggman as he escapes to relaunch his battle station. Now realizing that Sonic and Tails are his allies and not his enemies, Knuckles provides them access to the Sky Sanctuary Zone to pursue the Death Egg, but is unable to join them due to still being drained from being electrocuted back in the Hidden Palace. Sonic and Tails are engaged by Mecha Sonic several times as they ascend Sky Sanctuary using equipment from Green Hill and Metropolis, before finally disabling the robot double and making it on to the Death Egg just as Sky Sanctuary collapses and before the Death Egg could get too far into orbit. Battling past the Death Egg's various defenses and Badnik guards, Sonic and Tails finally corner Eggman, forcing him to pull out his ultimate mech, the Great Eggman Robo, with the Master Emerald serving as a power source for its chest laser. Despite its size and firepower, Sonic and Tails destroy it, resulting in the Death Egg beginning to collapse as Eggman tries one last desperate attempt to escape with the Master Emerald in his Egg Mobile. In the end, he succeeds, and Sonic transforms into Super Sonic to pursue him into the Doomsday Zone to stop him once and for all. Once Super Sonic destroys Eggman's final mech that tried to escape with the Master Emerald, Sonic and the Master Emerald are picked up by Tails in the Tornado to return the Emerald to Angel Island. However, Sonic later used the Tornado himself to pick up Knuckles after he defeated a still-functioning Mecha Sonic who stole the Master Emerald to use itself in what was left of Sky Sanctuary Zone to attain its own Super form.
===Sonic the Hedgehog 4===
====Episode 1====
Shortly after helping Knuckles save Angel Island, Sonic leaves Tails and Knuckles to explore new territories solo. However, the blue hedgehog knows that Dr. Eggman is still up to no good. Utilizing his older inventions, Eggman battles Sonic throughout multiple zones. After besting Eggman each time, Sonic chases him back to Splash Hill Zone, where Sonic chases Eggman up to his newly revealed space station: the E.G.G. Station. After beating all of Eggman's previous inventions again, Sonic battles Eggman one final time in his rebuilt Death Egg Robot. After managing to defeat Eggman, Sonic escapes the exploding E.G.G. Station with the seven Chaos Emeralds in hand and returns in one piece.
====Episode 2====
Shortly after the destruction of the E.G.G. Station, Sonic notices Little Planet returning but at the same time, finds out that Eggman is plotting to take over the small planet again. Ready to stop Eggman, he sets off with Tails across new locations to find Eggman and stop his evil plot. Along the way, the two re-encounter Metal Sonic, ready for revenge shortly after his defeat on Stardust Speedway with a bunch of new techniques. After managing to defeat Metal Sonic in Sky Fortess Zone, Sonic and Tails chase after Metal Sonic and Dr. Eggman in a space pod leading to Little Planet, which is now contained within Dr. Eggman's newest creation: the Death Egg Mk. II, a complete copy of the original Death Egg meant to contain Little Planet. After Sonic and Tails adventure through the space weapon and manage to take down Metal Sonic in a race, Sonic and Tails defeat Eggman and escape the exploding Death Egg Mk. II and return home.
===Sonic Adventure/DX Director's Cut===
Sonic is cruising through Station Square one night, bouncing off buildings before looking over the city from a rooftop, when he notices the Station Square Police Department rushing to an emergency. Arriving at the scene after following the patrol cars, Sonic sees the police engaging a strange creature made of liquid, only to be forced into retreat when their weapons have no effect on the creature as their bullets bounce right off its liquid body and clink to the ground, wasted. Sonic battles and defeats Chaos 0, who retreats into the sewers before Sonic can pursue him. Later, Sonic sees Tails struggling to fly his prototype biplane over the coastline when Tails crashes into Emerald Coast. Once Sonic rescues him, Tails reveals that the prototype was being powered by a Chaos Emerald. Heading over to Tails' workshop in Mystic Ruins, the two buddies are confronted by Eggman, who battles them in the Egg Hornet, but is defeated. However, he manages to acquire the Chaos Emerald and gives it to Chaos, transforming it into Chaos 1, before taking his leave to find the rest of them. Sonic and Tails attempt to prevent this as they recover one Chaos Emerald from Windy Valley, and a second one from Casinopolis back in Station Square, but lose that one to Eggman when he ambushes them outside Casinopolis and hits them with sleeping gas to prevent them from stopping him grabbing the Emerald and making his escape after they dropped it. Recovering another Chaos Emerald from Ice Cap back in the Mystic Ruins, the duo are then confronted by Knuckles, demanding they hand over the Emeralds they are carrying, as he believed they were carrying Emerald Shards of the Master Emerald at the time, resulting in Sonic and Tails losing their two Chaos Emeralds they still had to Eggman, allowing Chaos to power up to Chaos 4. After defeating Chaos 4, Sonic and Tails attempt to pursue the Egg Carrier as it retreats using the Tornado, but are shot down, separating them as Sonic lands back in Station Square, unsure of where Tails ended up. He later encounters Amy Rose, who asks for his help to protect a Flicky she found that was being pursued by Eggman's robot ZERO, but loses track of her after heading through Twinkle Park and trying to find her in Speed Highway. He finally finds her having been captured by ZERO and heading for the Mystic Ruins. He intercepts ZERO there, but the Egg Carrier arrives and retrieves ZERO before Sonic can rescue Amy. After trying to pursue it through Angel Island's Red Mountain, Sonic is helped in continuing the chase by Tails arriving in the Tornado 2, allowing them to pursue the Egg Carrier into the sky and manage to get aboard, but only after Tails remembers that the Tornado 2 does not have landing gear in its jet mode, forcing them to crash land it. After making their way through the Sky Deck to reach the interior of the Egg Carrier, they get back topside near the bridge, where Eggman is confronting Amy and grabs the Flicky she was protecting, as he was only after the Chaos Emerald the Flicky had in its pendant, before summoning E-102 Gamma to deal with Sonic. Though Sonic bests Gamma, Amy defends the robot from Sonic delivering the finishing blow, convincing Sonic to spare Gamma as it helped her escape from the Egg Carrier's brig earlier. Though unsure, Sonic agrees to spare Gamma, before telling Tails to grab Amy and get her off the Egg Carrier when it is discovered the Egg Carrier is crashing, while he goes after Eggman. Finding Eggman, Sonic is confronted by Chaos 6, along with learning that Big the Cat's buddy Froggy is trapped in Chaos 6's body. Sonic manages to defeat Chaos 6, before pursuing Eggman as he flees his crashing Egg Carrier, landing back in the Mystic Ruins. Following a strange light into the temple ruins, Sonic proceeds through Lost World until reaching the heart of the ruins and being shown a mural of Perfect Chaos, before being sent back in time to when the Altar of the Emeralds was under siege, where he is shown a brief vision of Tikal the Echidna as she tries to stop what has occurred, before being returned to the present, just in time to spot Eggman and pursue him into his base, Final Egg, where Sonic soon confronts Eggman in the Egg Viper and defeats him.
With Eggman defeated, Sonic is relaxing back near the Mystic Ruins train station when Tails arrives with bad news, Angel Island is falling again, despite Knuckles having restored the Master Emerald to enable its ability to float again. Heading to the ruins of the Altar of the Emeralds near Red Mountain, Sonic and Tails find a stunned Knuckles and Eggman there. Wondering what happened, Sonic learns that Chaos is still alive, attacked Eggman and Knuckles, and made off with the six Chaos Emeralds that Knuckles retrieved when he defeated Chaos 6 back on the Egg Carrier before it crashed. Eggman soon recovers and departs in his Egg Mobile to plan his revenge on Chaos. As Knuckles warns Sonic what would happen if Chaos gets all seven, Sonic is thrusted back into the past to see when the Altar of the Emeralds was attacked by Tikal's father Pachacamac and his echidna warriors to acquire the Chaos Emeralds to help them defeat their enemies, only to be confronted by Chaos who, furious that they would violate the sanctity of the Altar and attack the Chao it swore to protect along with Tikal, transforms into Perfect Chaos to punish them for their crimes. By the time Tikal recovers, her father and his men have been wiped out by Perfect Chaos, who is now running rampant, blinded by rage and hatred, and remembering the riddle regarding the Chaos and Master Emeralds, Tikal asks the Master Emerald to intervene, which it does. After that, Sonic is returned to the present, and he and Tails go looking for the Tornado 2, which had the seventh Chaos Emerald still in it when they last saw it. Finding it having crash landed back at Big's house, they are about to grab the Chaos Emerald when Chaos suddenly appears and beats them to it. With all seven Chaos Emeralds in its possession, Chaos evolves into Perfect Chaos once more and lays siege to Station Square, turning it into a flooded wasteland. Even Eggman and his Egg Carrier 2 are no match for Perfect Chaos, who easily shoots down the massive flying fortress. Tikal then appears in the flesh before Sonic, explaining that Chaos must be sealed back in the Master Emerald before he destroys the world. Sonic refuses, knowing that if Chaos is not quelled of its rage now, the cycle will keep on repeating. Luckily, when Sonic's friends arrive with the de-powered Chaos Emeralds, Sonic uses the positive energy in the Emeralds to become Super Sonic, as Chaos only absorbed the negative energy to become Perfect Chaos. Within a short time, Super Sonic defeats Perfect Chaos, returning it to its base form of Chaos 0, but purged of the rage that had tortured it for so long, allowing it to leave in peace with Tikal, now relieved to see that the Chao are doing well for themselves. Sonic, meanwhile, heads out to go after Eggman again after he quietly takes his leave following the battle's conclusion.
===Sonic Adventure 2===
Sonic finds himself being transported to prison by a G.U.N. helicopter, callsign Sigma-Alpha 2, but is able to overpower the troops and escape. He later discovers that the person who framed him was another hedgehog: Shadow the Hedgehog. After Sonic is captured and taken to Prison Island to be incarcerated, he escapes with help from Amy Rose and later heads to the Space Colony ARK to confront Eggman and Shadow, only to nearly be killed when he's placed in an escape pod set to self-destruct after Eggman used Amy as a hostage, but escapes thanks to being able to perform Chaos Control with a fake Chaos Emerald he was holding at the time. When Eggman then attempts to destroy the Earth with the Eclipse Cannon, powered by all seven Chaos Emeralds, he unintentionally triggers his grandfather, Professor Gerald Robotnik's, final doomsday plan to destroy the Earth in revenge for the raid on the ARK by G.U.N. 50 years ago that killed his granddaughter, Maria Robotnik. Working with Shadow after Amy convinces him of what Maria's true final wish was, Sonic and Shadow assume their super forms to destroy the Finalhazard as it attempts to drag the ARK towards Earth, before using a powerful Chaos Control to return the ARK to a stable orbit, but at the cost of Shadow apparently sacrificing himself to ensure it succeeded.
===Sonic Heroes===
Sonic is joined by Tails and Knuckles when they deliver a message from Dr. Eggman announcing that his new Eggman Fleet is poised to attack the world in only a few days and challenges Sonic to try and stop him. Forming Team Sonic with Tails and Knuckles, Sonic heads off to defeat him. However, after Team Sonic, along with Team Chaotix, Team Rose, and Team Dark complete their journeys with fighting Eggman's forces, they find that the Eggman who was controlling the Eggman Fleet was not the real Eggman, but Metal Sonic, having evolved into Neo Metal Sonic, overthrown Eggman, and been using the Eggman Fleet to not only challenge all four groups of heroes, but to copy their data to become the Metal Overlord in an attempt to finally prove to Sonic who was the real Sonic and rule the world himself, but in the end, Super Sonic and Team Sonic defeat Neo Metal Sonic, reverting him back into Metal Sonic, and Sonic challenges him to fight him again if he ever wants to.
===Shadow the Hedgehog===
When the Black Arms invade the planet with the return of the Black Comet after 50 years since its last visit, Sonic and all his friends team with the Guardian Units of Nations to defend the planet. Shadow can either aid Sonic and his friends fighting the Black Arms, aid Black Doom and his forces in eliminating them, or ignore both sides and collect the Chaos Emeralds for his own intentions.
*Westopolis - Sonic asks for Shadow's help in fighting off the Black Arms and aiding G.U.N. in defending Westopolis. Shadow secures the first two Chaos Emeralds while doing this.
*Lethal Highway - If Shadow aids Sonic in Westopolis, Sonic now needs his help to chase down and destroy the Black Arms' lead tank before it escapes the city. Afterwards, Black Doom sends Black Bull to face the two hedgehogs in combat, but they defeat it, securing the third Chaos Emerald.
*Space Gadget - Arriving on the Space Colony ARK, Sonic races Shadow to the Chaos Emerald as a chance to reminisce over their previous visit to the ARK during the events of Sonic Adventure 2. Securing the Chaos Emerald gives Shadow five of the seven at this point.
*Final Haunt - With the Black Arms in full retreat on all fronts, Sonic leads the initial assault to clear the way for G.U.N. to attack the Black Comet, asking for Shadow's help to locate Black Doom in his inner sanctum so they can deal with the Black Arms' dark prophet and leader once and for all. Once they find him and secure the sixth Chaos Emerald, Sonic aids Shadow in defeating Black Doom and securing the seventh and final Chaos Emerald. With all seven Chaos Emeralds in his possession and joined by Sonic as they stand victorious over Black Doom, who vows that his kind will rise again, despite having been defeated by them, Shadow promises to use the Emeralds to fulfill Maria's dying wish and protect the Earth, leading into the Pure Hero Ending with Shadow's heroic song, "All Hail Shadow", playing during the credits.
In the Last Story, Shadow has collected all seven Chaos Emeralds. Black Doom asks for him to hand them over when Sonic arrives with Eggman, Tails, Knuckles, Amy, and Rouge, asking Shadow to give him the Chaos Emeralds instead as Eggman and Rouge warn that Black Doom intends to destroy the planet, only for the dark prophet to reveal that the human population are to be used as nourishment for the Black Arms, and then uses the Chaos Emeralds to unleash a Chaos Control to transport the Black Comet to the planet's surface. Once the comet takes root within the ruins of Capital City, it releases a paralyzing gas that immobilizes Sonic and all his friends, leaving them helpless to be fed on by the Death Leeches, larva of the Black Arms. Shadow is unaffected because of having Black Arms DNA in his blood when he was created, so he goes after Black Doom alone. After the Chaotix trigger a video diary of Professor Gerald Robotnik explaining he built Shadow and the Eclipse Cannon to stop Black Doom when the Black Comet returned in 50 years after its previous visit when Gerald formed his pact with Black Doom that led to Shadow's creation, the inclusion of Maria Robotnik at the end gives Shadow the motivation to stop Black Doom. After Shadow goes Super and defeats Black Doom in his ultimate form of Devil Doom, Super Shadow Chaos Controls the Black Comet back into space, in range of the Eclipse Cannon, and destroys it, ensuring the end of the Black Arms once and for all. Sonic, having witnessed everything with the others, cheers for Shadow's triumph.
===Sonic the Hedgehog (2006)===
Sonic is paying a visit to the seaside Kingdom of Soleanna as they are celebrating the Festival of the Sun in honor of Soleanna's god, Solaris. However, during the ceremony, Eggman suddenly attacks, disrupting the ceremony before confronting the Soleanna sovereign, Princess Elise, asking for knowledge on the Flames of Disaster and the Chaos Emerald Elise possessed. Sonic arrives and quickly dispatches Eggman's Egg Gunners before grabbing Elise and fleeing as the rest of them open fire on Eggman's command, but Sonic and Elise escape. When they think they are safe, another squad of Egg Gunners appear and block their escape. Sonic deals with them, but while he was distracted, Eggman grabbed Elise in the Egg Mobile. Elise throws her Chaos Emerald to Sonic to hold onto while Eggman retreats with Elise to his Egg Carrier and takes her to his base in the Dusty Desert.
After Sonic meets up with Tails and tries to pursue the Egg Carrier through Wave Ocean, only for it to escape, they head back to Soleanna Castle Town to attempt to find where it went and soon head for Dusty Desert, where they rescue Elise, only to be confronted by Eggman and the Egg Cerberus. Though Sonic defeats it, Eggman sends a vast army of Egg Gunners after them. Tails offers to create a diversion while Sonic escapes with Elise. Once they are safe, Elise thanks Sonic for his aid, then notices that he was injured. She treats his injury and bandages it before apologizing, blaming herself for him getting wounded, but Sonic assures her that her smile is all he needs. As they continue across the open field, Elise explains to Sonic about Solaris and the Flames of Disaster, along with her fear of what would happen if Eggman were to get his hands on that power after what it did previously when it killed her father, the Duke of Soleanna, 10 years ago. Nevertheless, Sonic takes her for a run and explains that nothing happens until you take action, and if you have time to worry, then run.
Returning to Castle Town, Sonic and Elise are ambushed by Silver the Hedgehog, who believes that Sonic will destroy the future and has come to destroy him. While Sonic is dealing with Silver, Elise is kidnapped by Eggman, and Sonic is initially unable to pursue until Amy arrives and holds Silver off to give Sonic time to go after Elise. Heading to Soleanna New City, Sonic meets up with Knuckles, who delivers a message from Eggman to Sonic. It's an ultimatum: Meet Eggman at his base in White Acropolis with the Chaos Emerald Elise entrusted to Sonic, and Eggman will release Elise in return for the Chaos Emerald. Although Knuckles and Tails suspect Eggman will not hold up his end of the bargain, Sonic decides to do it.
Heading to White Acropolis, they soon reach Eggman's base. After Eggman shows Elise is fine, he reminds Sonic of their agreement: The Chaos Emerald for Elise. Sonic shows he has it, and after placing it on a podium that rises from the floor per Eggman's instructions, Eggman reveals that he was bluffing as he activates what he dubs the "Solaris Prototype" to send Sonic, Tails, and Knuckles to an unknown time period, much to Elise's despair. Sonic, Tails, and Knuckles end up in a desolate version of Eggman's White Acropolis base, where they are soon joined by Rouge and Shadow, who show them a devastated Soleanna New City, explaining that this is in the future, far removed from their own timeline. Although they want to get back to Soleanna in the present, they need a powerful version of Chaos Control to do it as Shadow's Chaos Control is insufficient at the moment. Making their way through Crisis City and Flame Core, while also dealing with the manifestation of the Flames of Disaster in Iblis, Sonic and Shadow acquire two Chaos Emeralds, allowing them to perform a Chaos Control to open a time portal, allowing Sonic, Tails, and Knuckles to return to the present-day Soleanna. While in the future, Team Sonic eavesdrops on a conversation between Mephiles the Dark, Silver the Hedgehog, and Blaze the Cat before they vanish, and learn from a still-functioning computer database Tails is able to access that Elise will die on Eggman's Egg Carrier two days after the Festival of the Sun due to the ship suffering a catastrophic explosion.
Pursuing Eggman after he attempted to escape with Elise on his train, while also forcing Sonic to take a detour to protect the Soleanna passenger train from explosives he planted on the track to try and hurt everyone on board, Sonic soon manages to catch up and rescue Elise before Eggman's train exploded, but as he and Elise head back, they are attacked once more by Silver, who makes it clear that Sonic must die for the good of the future. As Silver and Sonic battle again, Eggman once more kidnaps Elise with his Egg Mobile in the confusion. This time, Shadow arrives to deal with Silver while Sonic goes after Elise. Refusing to be Eggman's prisoner again, Elise intentionally falls of the side of the Egg Mobile, but is caught before she hits the ground by Sonic. Angered by that, Eggman unleashes the Egg Genesis on Sonic, but Sonic manages to defeat it and escape with Elise. Seeing Eggman's Egg Gunners in pursuit of them, Sonic takes Elise and flees into the Tropical Jungle. Once they've evaded Eggman's pursuit, noticing Elise's disappointment with when he says she should head home to the royal castle, Sonic takes her to a beautiful lakeside, where Elise then explains to Sonic about how beautiful the grove looks and how her duty as Soleanna's sovereign gives her plenty of time to be around her people as she loves them deeply, just like her late parents. When she asks Sonic to not forget Soleanna or his time there and he promises with a clenched fist to signify it, Elise momentarily turns away, but finding herself fighting a losing battle to avoid crying, she immediately rounds and hugs Sonic for comfort, but he assures her to just smile.
Shortly later, Sonic learns from Tails that Elise surrendered willingly to Eggman to protect Soleanna after he threatened to raze it to the ground if she did not surrender to him by 4 PM. Pursuing the Egg Carrier to Kingdom Valley, Sonic is confronted by Silver again, but this time, Silver is on Sonic's side, wanting to help rescue Elise. However, they are too late. Just as Sonic was forewarned of by the computer in the future, the Egg Carrier suffers a malfunction in the engines, and the entire battleship goes down in flames, crashing in the distance, and killing both Elise and Eggman, leaving Sonic devastated at failing to save both her and his arch-nemesis. However, Silver realizes they still have a chance to avert Elise and Eggman's fate when he pulls out a Chaos Emerald he had acquired. Remembering his own after doing it with Shadow, Sonic pulls out his Chaos Emerald, and Sonic and Silver perform Chaos Control, opening a time portal for Sonic to travel back in time and prevent events from happening again. Sonic entrusts his Chaos Emerald with Silver before he hops through. Once back in the past, Sonic meets up with Tails and Knuckles and heads for Aquatic Base, where the Egg Carrier is currently docked before taking off on its doomed flight.
Sonic gets aboard just as the Egg Carrier is taking off, so when events play out as before with Eggman unable to shut down the engines when they start to malfunction and fearing he and Elise are done for, Sonic appears on the bridge, and warns Eggman that his battleship is doomed. As a result, Eggman faces Sonic in the Egg Wyvern, and upon defeat, is safely ejected so he escapes his death when the Egg Carrier crashes, while Sonic grabs Elise and is able to escape the ship as well as it falls apart around them, being blasted up onto safe ground when the Egg Carrier's engines slam into the cliff and detonate. Once Sonic recovers, he and Elise share a laugh and Sonic comments on her smile before they enjoy the view.
Later, as they head back to Soleanna, they suddenly notice the purple Chaos Emerald floating in front of them. Unknown to them, it was a trap set up by Mephiles the Dark to complete his own grand scheme to reunite with Iblis and become Solaris again. When Sonic and Elise are blinded by the emerald, Mephiles makes his move and skewers Sonic from behind with an energy spear, fatally wounding him. Having developed such a strong relationship with Sonic, seeing him get murdered is too much for Elise, and despite remembering her father's words, Elise is so devastated that she cries and releases Iblis' seal, freeing the Flames of Disaster. Mephiles quickly uses the Chaos Emeralds to reunite with Iblis and become Solaris once more, and begins destroying the space-time continuum.
Sonic's friends and Eggman are brought together and discover Sonic's fate. Without Sonic, everyone fears there is no way to beat Solaris now, but Elise senses that Sonic may still be alive. To that end, realizing that the Chaos Emeralds could resuscitate him, Sonic's friends set out to recover them from the levels being consumed by Solaris' powers, with a little help from Eggman as, wishing to be able to fight his arch-nemesis again, he uses a tracking radar built into his glasses to help locate the Emeralds. Once all seven are recovered, Elise gives Sonic her version of the breath of life, and combined with the Chaos Emeralds, Sonic is revived, and becomes Super Sonic as well. Sharing his powers with Shadow and Silver to allow them to become Super Shadow and Super Silver, the three hedgehogs take off to face Solaris together. Working together, the three of them are able to destroy Solaris' consciousness, slaying Mephiles the Dark once and for all. Without its consciousness, Solaris is destroyed, reverting back into the small flame that it originated from. Sonic and Elise are transported back to 10 years ago, and as they look at Solaris, Elise prepares to extinguish it, despite knowing that doing so will rewrite the time stream so she and Sonic never met. While she initially wants to refuse, Sonic convinces her to go through with it, and trusting Sonic, Elise blows out Solaris, ensuring Mephiles and Iblis will never exist and threaten the future.
Back in the present, the Festival of the Sun goes on as originally in Sonic's story, but with no knowledge of the Flames of Disaster this time, Eggman does not crash it, but Sonic is visiting the city, and as he rushes past Elise's boat, he causes one of the feathers she wears in her hair as her crown to become detached and fly away. Elise thought she saw something that caused it, but her robed lady-in-waiting thinks she was just seeing things and it was just the wind. Elise agrees, but can't help but think that the wind was familiar somehow as Sonic is seen on a rooftop watching Elise's feather fly past and gazing at the full moon as he enjoys the ceremony.
Although, this is unknown if Sonic gets a déjá vu of the events, or get to go as free as the wind, but in Sonic Rivals, he meets Silver again, making he will get a crack of the seal.
===Sonic and the Secret Rings===
Sonic is transported into the storybook world of "Arabian Nights" to aid the genie Shahra against the evil Djinn Erazor as he attempts to destroy the storybook world in his quest to acquire the seven World Rings. To further that, he plants a fire arrow in Sonic, and warns Shahra that if he does not get the World Rings by the time the arrow burns out, Sonic's life "is forfeit". Though Sonic succeeds in getting the World Rings with Shahra's help, when he delivers them to Erazor, while Erazor keeps his end of the bargain and removes the arrow, sparing Sonic's life, he then reveals that he intends to use the rings to conquer what's left of Arabian Nights, having summoned the Ifrit to destroy the remaining half of the storybook world, but to unlock the World Rings' full power, he needed a sacrifice, and Sonic was going to be that sacrifice. However, Shahra sacrifices herself instead to protect Sonic, her Master, and as a result, when Erazor absorbs the rings, he becomes corrupted as he becomes Alf-Layla-wa-Layla, a corrupted version of himself due to not having sacrificed Sonic to unlock the World Rings' full power. Sonic uses the Purple, Red, and Green World Rings, fueled by his sadness over Shahra's death and his rage and hatred towards Erazor to become Darkspine Sonic and defeat Alf-Layla-wa-Layla, reverting him back into Erazor, who still believes he is unbeatable due to his immortality, until Sonic reveals he is in possession of Erazor's lamp, reverted to its original form following Shahra's death, and with the lamp in Sonic's possession, Erazor is forced by the lamp's power to grant Sonic's wishes, despite his initial refusal to do so, but the lamp overrules him and forces him to grant Sonic's wishes: First, revive Shahra, second, restore the storybook world of Arabian Nights, and third, Erazor is to be confined to his lamp for the rest of time. Erazor pleads for mercy from Shahra to save him from his eternal imprisonment, but Shahra refuses to aid the corrupt Djinn, and he is imprisoned for eternity in his lamp. Sonic then sees to the lamp's destruction in the Foundry to ensure Erazor can never be freed again, and uses his last wish from Shahra to grant her a mountain of handkerchiefs to cry into to help deal with her grief before he takes his leave to return to his world.
===Sonic and the Black Knight===
Sonic finds himself unceremoniously summoned into the storybook world of "King Arthur and the Knights of the Round Table" by Merlina, granddaughter of Merlin, King Arthur's wizard, to help her defeat the Black Knight, King Arthur corrupted by the immortality granted by the scabbard of Excalibur. After meeting Nimue, the Lady of the Lake and the world's version of Amy Rose, who is quite the opposite of the Amy Rose that Sonic is used to, and drawing the sword Caliburn from the stone it was placed in, Sonic uses his newfound training through Nimue as a knight to face off with the knights of the Round Table in service to King Arthur, them being the world's representations of Shadow, Knuckles, and Blaze: Sir Lancelot, Sir Gawain, and Sir Percival. Once he defeats them and acquires their sacred swords, he uses them to weaken King Arthur, allowing him to slay the corrupt king, only for Arthur to vanish similar to his minions of the underworld Sonic fought beforehand, much to Sonic's puzzlement. Returning to Merlina as she's confronted by the knights and reveals what he saw with King Arthur, Merlina drops the bombshell that the King Arthur that Sonic defeated was only an illusion conjured by her grandfather Merlin. With the scabbard of Excalibur now in her possession, Merlina intends to use its power to ensure Camelot does not meet its predestined demise like in the history books, and summons the Dark Hollow of the underworld to render Camelot immortal. Meeting up with Nimue after escaping Camelot Castle, Sonic and the knights attempt to summon a barrier around the castle to keep the Dark Hollow at bay using Caliburn and the sacred swords, but their efforts are futile as the barrier is too weak. Sonic heads back in to confront Merlina, now having been transformed by the underworld's energy and the scabbard of Excalibur into the Dark Queen, and despite his best attempts to reason with her, his pleas fall on deaf ears, and Sonic is forced to try and attack her, only to be repulsed as Merlina is too strong now, and she manages to break Caliburn in half, before brutally beating Sonic to within an inch of his life. Despite pleas by the knights to pull back as it is too dangerous, Sonic refuses to give up. His refusal to surrender causes the sacred swords to respond, and the knights send them to Sonic, causing him to transform into Excalibur Sonic as Caliburn is restored as the true Excalibur. With his newfound power, Sonic is able to weaken the Dark Queen enough that he is able to pierce clean through her with Excalibur, destroying her and restoring Merlina to her original state, who feels deeply upset at being unable to prevent Camelot's inevitable fate. However, Sonic assures her that she needs to live life to the fullest in the time Camelot has left, and realizing he's right, Merlina apologizes for her actions and agrees to enjoy her life to the best she can before Camelot's demise arrives. Meanwhile, it is revealed that, since Caliburn is Excalibur, the fabled Sword in the Stone, as Sonic pulled him free, Sonic is the true King Arthur. After Sonic is able to return home to his world, Sonic explains his experience to Amy, but believing it to be a big fat excuse Sonic thought up to weasel his way out of a date with her, Amy chases after him with her Piko Piko Hammer.
===Sonic Unleashed===
Sonic engages Eggman's massive armada in orbit above the planet, but when Eggman forces Sonic to go Super Sonic to free himself from Eggman's prototype Egg Dragoon mech, Eggman flees to his space station as Super Sonic destroys his flagship and several of the smaller battleships before reaching the space station. Eggman feigns surrender and begging for mercy, so when Super Sonic lowers his guard, Eggman traps him and has the Chaos Emeralds forcefully pulled out of Super Sonic, reverting him back into Sonic before using their energy to power his massive cannon to awaken Dark Gaia from the core of the planet. The premature release of Dark Gaia has the unintended side effect of infecting Sonic with Dark Gaia's energy, transforming him into Sonic the Werehog, before Eggman then sees to ejecting Sonic from the space station, leaving him to fall back to the planet below with the powerless Chaos Emeralds. Upon landing, Sonic discovers Light Gaia, but blaming himself for having possibly caused Light Gaia to lose his memory when he landed, Sonic takes it upon himself to help Light Gaia out, naming him "Chip" after the local Apotos ice cream special that Chip had hungrily been looking at when they first entered town, the Chocolate Chip Sundae Supreme. Sonic also discovers that when the sun is up, he is back to his normal self, but when the sun goes down, he turns back into his Werehog self, soon learning of his new Werehog abilities where he could stretch his arms to attack enemies with a variety of moves compared to his speed, Spin Attack, and Homing Attack as his normal self.
After rescuing Tails from several of Dark Gaia's minions that had surrounded him in Apotos in Windmill Isle, and then Professor Pickle from being Eggman's prisoner at his base in Mazuri in Savannah Citadel, along with the Gaia Manuscripts, Sonic learns from the Gaia Manuscripts that he needs to restore the Chaos Emeralds at the seven Temples of Gaia located on each of the seven continents. Doing so will allow the planet to heal naturally once the Chaos Emeralds have had their energy restored. After Sonic restores five of the Chaos Emeralds at the Temples of Gaia in Mazuri, Spagonia, Holoska, Chun-Nan, and Shamar, during the process of restoring the sixth in Adabat, Chip is able to recover his memory and explain everything to Sonic. When Sonic assumes his Werehog form again at sundown, he believes that Chip was protecting him this whole time from behaving strangely like so many other people affected by Dark Gaia's influence and minions. However, Chip reveals it wasn't him, it was Sonic's strong willpower that allowed him to maintain control of himself in his Werehog form as he doesn't give into the night or the darkness inside his heart. After Chip initially intends to leave and resume his duties as Light Gaia alone, Sonic convinces him to stay and let him help as that what friends do. Traveling to Eggmanland to locate the final Temple of Gaia, just after they finish restoring the seventh Chaos Emerald and leave the temple, Sonic and Chip are attacked by Eggman in the Egg Dragoon, drawing the battle into the planet's core, where Dark Gaia soon emerges, having regained physical form from Eggman recovering enough of its minions to allow it to reform from the energy its minions possessed. After Dark Gaia turns on Eggman and smacks his Egg Mobile away, it tries to attack Sonic and Chip before it then senses its energy in Sonic and attempts to take it back. Sonic struggles to hold on to it, but finally lets out a roar as the Dark Gaia energy that granted him his Werehog form is extracted and returned to Dark Gaia, returning Sonic to normal, but leaving him drained of energy.
Chip, refusing to leave Sonic behind, summons the Temples of Gaia to form the Gaia Colossus to fight Dark Gaia with, but though it appears that Sonic and Chip have defeated Dark Gaia, the beast begins to spread darkness across the planet through the still-open fissure around Eggmanland's continent, allowing it to transform fully into Perfect Dark Gaia. As on the surface, Professor Pickle fears the end of the world has come and Dark Gaia has won, Amy refuses to believe that and puts her faith in Sonic to find a way to win. Sonic summons the Chaos Emeralds and transforms into Super Sonic once more, and together, he and Chip in the Gaia Colossus are able to defeat Perfect Dark Gaia, sending the beast back into slumber in the planet's molten core. Exhausted, Sonic reverts back from Super Sonic, but is rescued by Chip, who then sends Sonic back to the surface before the final continent seals the planet core back up, leaving Chip and the Gaia Colossus to look up after Sonic as they sink into the molten core until they disappear from view as the final continent seals and the planet becomes whole again. Sonic ends up back at Apotos and Windmill Isle, around the same spot he landed at previously as his Werehog self, and upon spotting what he thought was Chip, instead, all he finds is Chip's necklace. However, remembering Chip and the good times he had with him, Sonic places Chip's necklace on his wrist as a bracelet as he enjoys the sunrise before taking off on another run, soon joined by Tails in the Tornado-1.
===Sonic Colors/Sonic Colors Ultimate===
Sonic learns that Eggman, in an apparent show of reformation and goodwill, has opened up a new amusement park in space, the "Eggman's Incredible Interstellar Amusement Park". However, Sonic and Tails ride a shuttle up to Eggman's park on the space elevator connected to it to confront him on the matter and see if he is being legit. When they arrive, they find Orbot and Cubot trying to capture two Wisps. Learning from the White Wisp that he and Tails name "Yacker" that Eggman has captured his kind and is using them to power his new amusement park using the Hyper-go-on energy the Wisps produce, giving them their unique appearances and abilities, Sonic decides to free the Wisps and shut down Eggman's amusement park. However, at one point, Eggman shows off a prototype of his secret weapon, a mind control ray, which he uses on Tails. Luckily, the Negative Hyper-go-on energy used to brainwash Tails runs out and wears off before he can harm Sonic, returning Tails to normal while Eggman withdraws to continue harvesting more Negative Hyper-go-on energy.
Sonic later has to free the Wisps' homeworlds that Eggman has enslaved with his Badniks to cut off power to the main park, but unknown to Sonic and Tails, Eggman was corrupting the Wisps and using the Negative Hyper-go-on energy to power a massive mind control ray hidden by his amusement park to try and conquer the Earth by brainwashing the masses similar to what he used on Tails. Though Sonic frees Sweet Mountain, Starlight Carnival, Planet Wisp, Aquarium Park, and Asteroid Coaster, cutting off power to Tropical Resort and the Egg Mecha, he wasn't able to prevent Eggman from collecting enough Negative Hyper-go-on to use his mind control ray. However, when Sonic fought and defeated the Rotatatron, one of its arms had gotten skewered in one of the ray's focusing towers. As a result, when Eggman is charging up the ray with what energy had been collected before Sonic cut off the power supplies, Rotatatron's arm causes the built-up Negative Hyper-go-on energy to leak from the fissure before causing the entire tower, a good chunk of Tropical Resort, and the larger tower on the outer perimeter to be destroyed, causing the ray to backfire, and the energy to begin forming into a black hole that threatened to consume the entire Egg Mecha. Sonic and Tails head for the space elevator to evacuate, only for Eggman to appear in the Nega-Wisp Armor to face Sonic. Sonic shoves Tails into the shuttle and hits the launch button to send him safely back down to Earth while he deals with Eggman. After critically-damaging the Nega-Wisp Armor, sending Eggman's Egg Mobile careening into space to crash back down elsewhere on the space elevator and then get sucked up into the black hole with Orbot and Cubot, Sonic, seeing the black hole growing larger and heading for him, attempts to run down the space elevator back to Earth as the elevator is ripped apart by the expanding black hole. When it looks like Sonic didn't make it, Yacker and the other non-corrupted Wisps save him and return him safely to Earth before dealing with the black hole themselves, transforming the corrupted Wisps back to normal from their corrupted states as Void and Frenzy Wisps, and destroying the black hole as well, dissipating the energy with their own Positive Hyper-go-on energy. With their job complete, Yacker and the Wisps return to their homeworlds after thanking Sonic and Tails for all their help, and their planets warp away to return to their proper galaxies.
===Sonic Generations===
Sonic is enjoying his birthday party with Tails, Knuckles, Amy, Blaze, the Chaotix, Rouge, and more, when it is crashed by the Time Eater, who sucks Sonic's friends into various portals before leaving Sonic stranded in White Space, with his friends now all petrified. After rescuing Tails, Sonic and Tails meet up with their classic selves, and then work to rescue the rest of Sonic's friends as they travel through stages from many of the previous Sonic titles like City Escape and Crisis City. Once they do, they soon confront the Time Eater, and discover it to be piloted by both Eggman and his classic self, Dr. Robotnik. Though the Time Eater initially overpowers both Sonics, the encouragement of all of Sonic's friends allow them to transform into their Super states and defeat the Time Eater, trapping Eggman and Robotnik in White Space while everyone else is returned to Sonic's birthday party, before Classic Sonic and Classic Tails depart to return to their own world. Afterwards, everyone enjoys Sonic's party at long last.
===Sonic Lost World===
Sonic once more is facing off with Eggman, who had recruited a dangerous group of Zetis known as the Deadly Six to aid him, using a special conch shell to keep them in line. When Sonic disarms Eggman of the conch, he inadvertently allows the Deadly Six to revolt against Eggman and plan to use his own invention to sap the life from the planet, including Amy and Knuckles. When Sonic decides to temporarily ally with Eggman to stop the Deadly Six, this drives a rift between him and Tails, resulting in Tails being captured in a trap meant for Sonic by the Deadly Six, with the intent being to have Tails Roboticized to turn him against Sonic. However, due to the Deadly Six's own stupidity in leaving the Roboticizer unattended, Tails is able to reprogram it so he keeps his free will. As a result, shortly after receiving one last transmission from Amy before the Miles Electric loses power, indicating she's lost so much energy she believes she's about to die, leaving Sonic devastated, when Sonic confronts Zavok, Zeena, and Zor in Lava Mountain, Tails is brought in, but acts as if he's fully under the Deadly Six's control. When Zavok orders him to kill Sonic, Tails reveals his free will is still intact and uses his blaster on the three, forcing them to retreat. After Tails is returned to his normal self, he and Sonic work to reverse Eggman's machine and restore the Earth, hopefully saving Amy and Knuckles following the last transmission Sonic got from her over the Miles Electric, but are confronted one last time by Eggman, after he was presumed dead after sacrificing himself to give Sonic a chance to stop the Deadly Six. In the end, Sonic defeats Eggman and saves the Earth from Eggman's device, allowing him and Tails to reunite with a restored and healthy Amy and Knuckles and finally enjoy some peace.
===Sonic Forces===
Sonic is contacted by Tails with word of Eggman having launched an assault on the City and Tails and several civilians need his help. As Sonic makes his way through Green Hill, concerned about the normally tropical region becoming a sandy desert, he soon reaches the City, arriving just in time to save Tails and the civilians from a squad of Egg Pawns that were about to open fire on them. Sonic then challenges Eggman, only for his strike on Eggman's Egg Mobile to be blocked by what appeared to be Shadow, joined by Zavok of the Deadly Six, Metal Sonic, and Chaos. Then a new figure appears, proving to be more than a match for Sonic, easily manhandling him with support from Shadow and the others before managing to overpower Sonic and cause him to collapse into unconsciousness from the beating they gave him, much to Tails' horror. Sonic is thus captured and taken to the rebuilt Death Egg to be imprisoned, but the world is made to believe that Sonic was killed in action, crushing their hope for a quick victory over Eggman. With the public's morale shattered, Eggman easily conquers over 99% of the planet within six months. In the meantime, Sonic is kept on the Death Egg until the Eggman Empire is completed, after which Eggman plans to show Sonic his completed empire before banishing him into space. However, a Resistance formed by Knuckles to take up arms against Eggman and his forces soon learns from Rouge the Bat, serving as a spy for the Resistance, that Sonic is still alive and on the Death Egg. Working quickly with the aid of a rookie soldier that recently made it to Resistance HQ, the Resistance secures an Eggman Fleet shuttle to take them to the Death Egg from the Spaceport in the Chemical Plant. The Rookie manages to make enough of ruckus as they reach the brig to save Sonic just as Zavok arrived to escort him to his execution. After Sonic defeats Zavok and the Death Queen, only to watch as Zavok vanishes after collapsing unconscious, he heads for the Death Egg's shuttle deck, rescuing the Rookie just as they were surrounded by Egg Pawns, before the two grab an Eggman Fleet shuttle preparing for departure and head back to Earth to rejoin the Resistance.
Back with the Resistance, Sonic is then asked by Knuckles to head to Green Hill to take out the Arsenal Pyramid, Eggman's main munitions plant supplying his war effort, asking to take the Rookie with him. Together, Sonic and the Rookie manage to take out the Arsenal Pyramid, but word comes in that Silver the Hedgehog and the Resistance forces in Mystic Jungle are under attack by the same mysterious person that overpowered Sonic previously. Seeing a chance at payback, Sonic heads to the Luminous Forest in Mystic Jungle, arriving just as the Eggman Fleet is launching a firebombing campaign to eliminate the Resistance garrison there. After dealing with a large snake awoken by the airstrikes, Sonic reaches Silver's position, rescuing him just in time from the figure, who properly introduces himself to Sonic as "Infinite". Though Sonic puts up a much better fight against Infinite this time, Infinite spares Sonic's life, finding him not worth finishing off before taking his leave. Sonic and Silver remain out of action for some time after the fight with Infinite, at least until Tails and Classic Sonic the Hedgehog meet up with the Rookie in Mystic Jungle and return to Resistance HQ with them, where Tails reveals that Eggman has an endgame planned to wipe out his opposition in three days. Shortly thereafter, Vector the Crocodile reports in that the City is under attack from Shadow. Sonic heads to Sunset Heights to investigate, and arrives to confront Shadow, only to have Shadow attack him, until he is smacked away by a roundhouse kick from another Shadow that used Chaos Control on the first one, revealing the one that saved Sonic is the real Ultimate Life Form, while the one that tried to attack him fades away, just like Zavok did, at which point, Shadow reveals to Sonic that all the guys serving Eggman and Infinite are fakes, replicas made by Infinite that are as strong as the originals, and he can duplicate them endlessly, no matter how many are defeated.
After Operation Big Wave, Knuckles' attempt to attack Metropolis while it was under-manned, fails thanks to Infinite, Sonic asks Tails to head to the Chemical Plant with Classic Sonic to investigate Eggman's database that Rouge pinpointed there for any information about Infinite's powers that could benefit the Resistance. While Tails and Classic Sonic are away doing that, Amy reports in that Metal Sonic has appeared in the City. Suspecting it to be another fake, Sonic heads there with the Rookie to Red Gate Bridge to confront his robotic doppelganger. After the replica Metal Sonic is defeated and the City liberated from Eggman's control, Tails returns with information pertaining to Infinite and his power source, the Phantom Ruby, which requires a lot of power that only a thing like the Death Egg could provide. To that end, the Rookie is volunteered to head to Green Hill to draw Eggman's attention by attacking his forces at Guardian Rock. With Eggman's attention diverted, Sonic could infiltrate the Network Terminal at the Chemical Plant and shut down the Death Egg's defenses, allowing Classic Sonic to infiltrate the dreaded space station and destroy it, cutting off the power to the Phantom Ruby.
The plan works, and with the belief that Infinite is powerless now that the accursed Death Egg had been destroyed once more, the Resistance launches a second strike on Metropolis, only for when Sonic reaches Eggman, Infinite appears and reveals to still have his powers as he attempts to banish Sonic to Null Space, though the Rookie tries to save Sonic at the cost of being pulled in with him, leaving Tails to be told by a smug Eggman that he had anticipated they would attack the Death Egg, so he built a backup reactor under Metropolis. However, Sonic and the Rookie are able to escape Null Space and rejoin the battle for Metropolis, which the Resistance was now getting the upper hand in. When they confront Eggman, he is shocked they escaped Null Space as he thought it impossible. Nevertheless, he swears he will have the last laugh before taking his leave, retreating to the Eggman Empire Fortress for his last stand while Metropolis falls to the Resistance.
Sonic joins all his friends as they lead the Resistance ground forces against Infinite's replica army at the Eggman Empire Fortress while their air force engages the Eggman Fleet in the sky. Upon confronting Infinite himself, E-123 Omega arrives to aid the Resistance, and Infinite decides to put Eggman's endgame into effect at once. Summoning all his power from the Phantom Ruby, Infinite creates a virtual sun to drop on the Resistance, burning them to ashes so there is no one left to oppose Eggman. However, the Rookie, having acquired a Phantom Ruby Prototype that Infinite dropped when he fought Silver earlier back in the Mystic Jungle, is able to cancel out the sun, saving the Resistance from certain annihilation. Seizing the initiative, Sonic heads through Mortar Canyon to find and confront Infinite for the last time. During their fight, Infinite regains his full power, but the Rookie arrives to intervene on Sonic's behalf. Together, the two heroes are able to finally defeat Infinite, who initially can't believe he was defeated, before being dragged away by his Phantom Ruby, much to Sonic and the Rookie's shock and confusion, before Eggman arrives to warn Sonic that his plan just went into overtime and Sonic hasn't won yet.
After Classic Sonic finds a hidden entrance into the Central Tower, Sonic and the Rookie head in to take out the Phantom Ruby reactor at the heart of the fortress in Final Judgement. Though they succeed and make it back outside, their celebration is short-lived when Eggman appears in his trump card, the Death Egg Robot powered by the original Phantom Ruby, revealing that the fortress reactor was also a decoy, and with the original Phantom Ruby at his disposal, Eggman is unleashing hundreds upon thousands of replicas against the Resistance. Despite Eggman's boasting that they will be defeated by the Death Egg Robot and his plans for world domination will still come to pass, Sonic makes it clear that Eggman's plan will fail just like the rest of them, before charging into battle with Classic Sonic and the Rookie by his side.
Together, they manage to destroy the Death Egg Robot, and apparently, the Phantom Ruby as well, and with the Ruby's disappearance, the replicas forming the Eggman Army cease to be as well, leaving the Resistance the victors of the War to Take Back the Planet. Afterwards, Sonic sees off his Classic self as he is returned to his dimension, assuring Tails they would see Classic Sonic again, before turning to address his friends over how they now need to rebuild the world following the damage Eggman caused to it with the war.
Sometime later, the Rookie heads outside Resistance headquarters to meet up with Sonic, who was watching the sunrise/sunset and joins them. Figuring that the Rookie is heading out, Sonic tells them he was thinking the same thing. Noticing how they are not that different, with the Rookie agreeing with them, Sonic wishes the Rookie well, sharing one last fist bump with them before he takes off, looking back and giving the Rookie one last thumbs up before he continues on his way until his friends need him again the next time Eggman threatens the world.
===Sonic Frontiers===
TBA
===Sonic Dream Team===
==Sonic Prime==
==IDW Sonic the Hedgehog==
Category:Synopsis