Dimension Obliteration

Dimension Obliteration is the sequel to the Youtube crossover series Dimension Takeover. Obliteration, like the previous two installments in the Dimension Saga, was created by the youtuber thechocobro as well as a crossover between Calvin and Hobbes, Sonic, and Invader Zim. Dimension Obliteration picks up where Dimension Takeover left off. The heroes have once again gone their separate ways and rsume their normal lives, but are oblivious of the rise of a new villain from the darkness, and the heroes must reunite again to stop the villain before he puts his plan into effect.

Sypnosis
A number of months have passed since the Xevian Invasion and the defeat of Tak and GAMP. Earth is now peaceful again and has recovered from the Xevian Invasion. The heroes have once again gone their separate ways to resume their normal lives while also struggling to overcome the trauma of tregdies they suffered during their adventures in Mix-Up and Takeover (Shadow's disappearance, Dib's sacrifice, and Zim's departure from the heroes to assassinate the Almighty Tallest upon learning of the villains' treachery). However, as the heroes struggle to cope with their losses, they are oblivious of a new threat as a new villain rises from the darkness. As the heroes slowly come to terms of this new threat, they realize that they must team up again in order to save Earth once more. However, this new villain is far more dangerous than any villain the heroes faced before, and his plans may threaten all of reality. In a race against time, the heroes must rejoin forces to stop the villain and save the world, or else their new menace will send all of reality on the path to oblivion...

Plot
It has been months since the Xevian Invasion and peace has been restored on Earth. The heroes have once again gone their separate ways and resumed their normal lives while struggling to cope with the sacrifices of Dib and Shadow during the events of Mix-up and Takeover. They are also coping with Zim's departure from the group and Earth to hunt down the Almighty Tallest, the leaders of the Irken Empire, whom Tak revealed were using Zim as a slave to destroy Earth at the climax of Takeover. The story begins showing flashbacks of many major events during Mix-Up and Takeover (Destruction of the Death Egg, defeat of Dr. Eggman, Tak's revelation of the Tallests' corruption and treachery, etc.). The story then cuts to the present day, on the planet that appeared at the end of Takeover as the robot Omega treks the planet's rocky terrain, heading for the crash site. The screen then cuts to Earth, in Calvin's hometown, Calvin is released from school friday afternoon. As Calvin is about to walk out of the door, Moe, a bully and enemy of Calvin, begins taunting Calvin to extort money from him. Calvin warns him to back off, but Moe refuses and attacks Calvin. Calvin quickly retaliates and runs out the door before Moe can punch Calvin. Moe attempts to pursue, but is grabbed by Calvin's teacher and taken to the principal's office. Susie, who was observing the fight Moe instigated, reveals to the teacher that Calvin is struggling to cope with the loss of Dib during the Xevian invasion months earlier. The teacher quickly understands and thanks Susie for telling her the reason behind Calvin's recent mood swings. Meanwhile, Calvin is walking home through a snow covered sidewalk. Calvin experiences a flashback of when Dib gave Calvin his watch during the heroees' battle against the Xevians at the Nazca Lines. After the flashback, Calvin continues walking home. Meanwhile, in outer space, the Irken fleets led by the Massive, the Irken flagship, fly through space over planet Blorch, the planet that appeared at the end of Takeover. Onboard the Massive, the Almighty Tallest discuss the lack of progress they have made in their conquest of the galaxy and their shortage on snacks. An Irken operative named Skoodge contacts the Tallest about the ship that crashlanded on Blorch at the end of Takeover. In response, the Tallest send Skoodge to investigate the wreckage. The Tallest are shocked to learn that the ship had debris from the Death Egg. However, just as the Massive approaches Blorch, a small ship emerges from the darkness of space, It is revealed to be the same ship Zim used to reach Xevious and escape from it with Sonic at the climax of Takeover. Zim's ship opens fire on the Massive and Tallest Red orders the fleet to return fire. When an Irken soldier reveals that Zim is piloting the ship, the Tallest freak and order the rest of the ships to open fire. They damage Zim's wing, but Zim crashlands in the docking bay of the Massive. Zim begins destroying many Irken ships. The Tallest also notice Zim is cutting their power and flee the Massive's bridge. The Tallest order their Irken soldiers to disperse across the galaxy and hunt down Zim. Zim boards the bridge of the Massive and attacks a squad of Irken soldiers. He kills all the soldiers save for one. Zim questions the soldier of the Tallests' whereabouts. The soldier refuses and Zim kills him. The Tallest rush to an Irken derelict ship and blast out of the Massive. Zim quickly gains control of the Massive's systems and notices the Tallests' ship flying away. Zim begins firng th Massive's laser cannon at the Irken ships and destroys many of them. Zim manages to scratch the top of the Tallests' vessel. Tallest Purple freaks out about Zim taking over the Massive so quickly, but Red reassures him that Zim is more dangerous than ever as he is now aware of their lies. Red tells Purple to set random coordinates for hyperspeed, which Purple desperately does. Meanwhile, the remaining Irken fighters retreat and disperse. Zim prepares to blast the Tallests' ship to oblivion, but Purple jabs his finger into the hyperspeed button and the Tallest escape. Zim vows that the hunt has just begun and will bring the Tallest to justice. Meanwhile, the Tallest discuss how they narrowly escaped Zim and hope to find a safe haven until their troops capture or kill Zim. Red asks where Purple had set the coordinates for, but Purple begins suffering from paranoia as a result of Zim's attack. Purple also reveals that he set the coordinates for Luna, Earth's moon. The ship then blasts off, heading for Luna. Meanwhile, on Blorch, Omega reaches the crash site and finds Shadow, who disappeared after his sacrifice to destroy the Death Egg. Meanwhile, on Earth, Sonic is experiencing flashbacks of his adventures in Mix-Up and Takeover. Amy comes along and asks Sonic what is going on. Sonic replies that he was thinking about Dib and their adventures in the previous series. Sonic also has found himself questioning why everything happened at all and blames himself for Dib and Shadow's sacrifices. Amy comforts Sonic, saying that neither of the sacrifices were his fault and that the ones to blame are the people who caused the grief themselves. The two hedgehogs sit together and watch the clouds. Meanwhile, at the house of the late Dib, Professor Membrane finds his daughter and Dib's sister Gaz sitting on Dib's bed. Gaz tells her dad she is thinking about Dib. Membrane then leaves Gaz be and enters his laboratory. Membrane replies "remarkable", indicating he has discovered something. Meanwhile, the Tallest land on Luna and set up a  temporary base of operations there. Meanwhile, on Blorch, Shadow and Omega reactivate the e-series robots, who were Omega's production line. Omega then questions Shadow tabout the current situation of the universe. Gamma, one of the e-series robots, calculates the stability of the universe is on overload. In response, Shadow orders the e-series to double their efforts in repairing the crashed ship to escape Blorch and return to Earth, where Shadow says a new danger has arisen. Shadow tells Omega that during the events of Mix-Up while the heroes were searching for the chaos emeralds, there was an attempt to seize the stability of the universe and in the five years since Mix-Up, stability is about to reach a breaking point. Shadow also reveals that a being seeks to destroy and obliterate all of reality. Shadow reveals that while he was searching for the chaos emeralds with the other heroes, he constantly felt a surge of disruption in time and space, and decided to investigate the cause of the disruptions. Shadow grew tired of the group's arguing and decided to look for the cause on his own. After traveling through Earth for some time, Shadow discovered that someone on Earth was indeed responsible for the disruptions in time and space. However, Shadow was unable to determine the identity of the culprit. The villain's disruptions of time also forced another e-series robot, Beta, to scatter the chaos emeralds across Earth to keep them protected. Shadow went to the Death Egg with Omega to liberate the other e-series robots and disappeared after liberating them. Shadow later resurfaced on Earth and is currently attempting to repair the ship so he, Omega, and the e-series can use it to return to Earth and stop the culprit before he puts his plan into effect. Shadow then looks into the stars and comments that it will not be long before the villain makes his next move and questions whether everyone else on Earth will be prepared when the time comes.

Characters
Sonic - The world's fastest hedgehog and one of the main protagonists of the show. Sonic has spent months since his fight during the Xevian Invasion struggling to recover from all that has happened during the events of Dimension Mix-Up and Dimension Takeover. Sonic also feels guilty for and blames himself for the sacrifices of Shadow and Dib, but Amy consoles him. However, as time goes by, Sonic becomes aware of a scheme to obliterate all of reality orchestrated by a powerful villain named Nega. As a result, the heroic blue hedgehog teams up with Tails, Amy, and Knuckles, determined to reunite the other heroes and neutralize the threat.

Tails - Sonic's two-tailed sidekick and a deuteragonist of the show who helps Sonic on many occasions. He is very tech savvy which makes him a great source for working machinery. Tails also uncovers Nega's attempt to destroy all of reality and alerts Sonic of the threat. Tails becomes determined to help Sonic and the other heroes find one another and find a way to put a stop to the villain's plans.

Knuckles - A short-tempered echidna who guards the master emerald and a friend of Sonic's as well as a deuteragonist of the show. He helps Sonic and Tails on many occasions throughout the show. Knuckles becomes aware of Nega's plans to erase all of reality and becomes determined to find the other heroes and put an end to the madman's scheme before he erases all of reality.

Amy - Sonic's love-interest and female hedgehog. She helps Sonic cope with the sacrifices of Shadow and Dib, as he blames himself for both sacrifices. However, Amy teams up with Sonic, Tails, and Knuckles when Tails discovers Nega's plan to destroy all of reality to find the other heroes and defeat the new menace.

Shadow - Black hedgehog created to protect humanity as the "Ultimate Life Form". Shadow is a major protagonist of the show. He disappeared after he seemingly sacrificed himself to destroy the Death Egg at the conclusion of Mix-Up. Shadow is found by Omega on planet Blorch after a ship crashlands there. Shadow is revealed to have been the first of the heroes to know of the existance of Nega as he discovered the villain's existance after he left the heroes at the Research Facility during the events of Mix-Up. Shadow also became aware of Nega's plans to delete all of reality. After Omega finds him, Shadow teams up with Omega to find a way off of Blorch and return to Earth in order to put a stop to Nega's plans and bring the villain to justice.

Omega - Shadow's robot companion who secluded himself after Shadow's disappearance. He later resurfaced on Blorch and reunited with Shadow and became aware of Nega's scheme to erase all of reality. After realizing this, Omega teams up with Shadow to search for a way off the planet and find a way to return to Earth before Nega puts his plan into effect.

Calvin - Young, but intelligent kid who has a liking for intellect and has a tiger sidekick named Hobbes. He is one of the main protagonists of the show. Calvin is greatly affected by Dib's sacrifice during the Xevian Invasion and is revealed to own Dib's watch, which was given to him by Dib during the heroes' battle with the Xevians at the Nazca Lines. Months after the attack, he comes under attack by monsters and aliens from his own mind, and uncovers Nega's plan to destroy reality after the villain tricks Calvin into believing that his hometown is nothing but a figment of his mind and that he must find his real "home". Following this, Calvin teams up with Hobbes and Susie on the run to find the other heroes while being pursued by the monsters from Calvin's mind.

Hobbes - Calvin's tiger sidekick. Hobbes is one of the show's deuteragonists. He helps Calvin on many occasions. Hobbes becomes aware of the plan to erase reality after he and Calvin come under attack by monsters and aliens from Calvin's mind. After this, Hobbes teams up with Calvin and Susie on the run in order to find the other heroes while being pursued by the creatures from Calvin's mind.

Susie - Calvin's friend and next door neighbor who is one of the main female protagonists of the show. She never believed Hobbes was an actual live tiger and discovers this while helping Calvin battle monsters from his mind after he and Hobbes are attacked by them. She and Calvin developed a very close relationship five years earlier and are willing to work together. Susie then teams up with Calvin and Hobbes on the run to find the other heroes and stop a plan to destroy reality while being pursued by the Aliens from Calvin's mind.

Zim - Irken agent who was sent to Earth by his superiors, the Almighy Tallest, to conquer it, but redeemed himself and is a major protagonist and antihero of the show. He is greatly angered by the sacrifice of Dib, whom he had a rivalry with prior to Mix-Up and developed a friendship with him afterwards. He is the only hero not to have any conflicts with Nega. Ever since he and Sonic defeated Tak and GAMP on Xevious, Zim is attempting to track down and eliminate the Tallest, whom Tak revealed to have been using Zim as a slave to further their own plans for galactic conquest. Fueled with feelings of revenge, Zim teams up with GIR to track down the Tallest and assassinate them for their crimes, thus, ending the Irken Empire's threat to the galaxy.

GIR - Zim's crazy robot sidekick and a deuteragonist of the show. GIR was left behind on Earth after Zim left Xevious find the Tallest. GIR later rejoins his master in searching for the Tallest and assassinate them, which will also bring the Irken Empire's age of conquest to an end.

Dib - Intelligent kid who was Zim's rival on Earth, but befriended him. Dib sacrificed himself to rescue Zim from Tak near the end of Takeover. His death has taken a heavy toll on Sonic, Zim, Calvin, and his sister Gaz as well as his father, Membrane. Dib appears in many flashbacks throughout the show, which frequently hints of his possible return/ressurction.

Gaz - Dib's younger sister who becomes a major female protagonist of the show. Like Zim and Calvin, Gaz is greatly angered by her brother's sacrifice and uncovers a scheme to send reality into oblivion masterminded by Nega. Her father Membrane, concerned for losing her like he lost Dib, attempts to prevent her from helping the heroes' efforts to regroup and stop Nega, but goes against her father's wishes regardless and finds Sonic and his friends. Gaz teams up with Sonic and his friends to reunite the other heroes and to prevent Nega from destroying reality.

Professor Membrane - A successful scientist and father of the late Dib and his sister Gaz. Membrane is coping with the sacrifice of his son throughout the show. Membrane eventually uncovers the plans of Nega to destroy reality and tries to persuade his daughter Gaz away from the dilemma while he struggles to find a way for the heroes to stop Nega, though Gaz takes action regardless. Membrane helps the heroes from behind the scenes on many occasions.

Bill - Investigator who helped the heroes defeat the Xevians a few months earlier and captured Dr. Eggman at the end of Mix-Up. In th show, Bill investigates the motives and whereabouts of Nega who seeks to destroy all of reality.

Skoodge - Irken agent who was a childhood companion of Zim. Zim and Skoodge grew up together on the Irken homeworld, Irk. Together, Zim and Skoodge attempted to escape an underground military base. Skoodge was injured, but Zim rescued him and the two escaped. After Zim was sent to Earth, Skoodge was sent to planet Blorch by the Tallest to conquer it, but he, like Zim, defected. During the show, Skoodge comes across Shadow and Omega, and teams up with the duo to find a way off Blorch and to find a way to return to Earth to stop Nega and his plan to destroy reality.

Moe - Bully at Calvin's school who serves as a foil to Calvin and is a minor villain of the show. During the show, Moe is captured by aliens from Calvin's mind and gives them information on Calvin's location. Moe is later released and follows Calvin on the run.

Illusions - Group of aliens and other alien-like creatures from Calvin's mind who are supporting antagonists in the show. They were mere figments of Calvin's imagination, until Nega uses his powers to make the Aliens reality. Their goal is to stop Calvin from regrouping with the other heroes in order to stop Nega from destroying reality. They also capture Moe to figure out Calvin's location. The Alien Illusions spend most of the show pursuing Calvin and his friends in order to eliminate them.

Almighty Tallest - Zim's former superiors and supreme leaders of the Irken Empire who are obsessed with snacks and galactic conquest. The Tallest are the secondary antagonists of the show. The Tallest are the masterminds behind the Irken Empire's goals of conquering the galaxy. At some point, the Tallest selected Zim to participate in Operation Impending Doom I, but Zim foiled the plan by nearly destroying an Irken base on Irk, the Irken homeworld. After this, the Tallest began to view Zim as a threat to their plans to conquer the galaxy, so when it came time to instigate Operation Impending Doom II, the Tallest gave Zim a fake mission to conquer Earth (although the Tallest did not know there was such a planet) to prevent him from foiling Operation Impending Doom II. In the show, the Tallest are forced into hiding after Zim attacks and takes the Irken flagship, Massive. The villains do all in their power to kill Zim and end his threat to their plans.

Nega - The mastermind behind the anihalation of reality and the primary antagonist of the show. He appears to have been an old foe of Sonic. Nega is arguably the most dangerous villain in the Dimension saga. Unlike Eggman or Tak and most of the other villains in the saga, Nega prefers to watch his enemies' progress from behind the scenes. It is revealed by Shadow that Nega was organizing his master plan during the events of Mix-Up and would plan to put it into effect five years later. After five years and months of planning, Nega puts his plan into effect and orchestrates the events of the show. Like most other villains from other forms of literature, Nega is intelligent and manipulative, which is proven when Nega tricks Calvin into believing his hometown is not his true home and he must return to his real "home" to set things right. However, Membrane implies that Nega is somewhat insane, willing to risk anything to destroy reality, even if it would cost his own life. Throughout the show, Nega's main goal is to destroy and erase all of reality. After the destruction of reality, Nega plans to recreate reality in his own image, where evil runs freely. However, the heroes prove to be a constant threat to Nega's plans.