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Private Notes
Seven years have passed since the battle with Cell. Gohan is now a high school student attending Orange Star High School, in Satan City. Gohan also has a younger brother named Goten, who was born after Goku died. On his way to his first day of high school, he comes across a bank robbery in the city and stops it with his Super Saiyan form. As rumors spread about a "Golden-Haired Warrior", Gohan gets to know his new classmate and Mr. Satan's daughter, Videl. After a day of trying not to act suspicious in front of his classmates, Gohan travels to Capsule Corporation to talk to Bulma about his problem.
Gohan approaches Bulma, who gives him a transformation watch to hide his true identity. On his way home, Gohan encounters two people driving recklessly. This is where he comes up with the alias "Great Saiyaman", and scares the people into driving more safely on the road. Gohan returns home later that night, where Chi-Chi and Gohan's little brother, Goten, discover that Gohan now has a costume to conceal his identity while fighting crime. The next day, Videl is called in to stop a bus hijacking and handles the criminals, but the bus falls off a cliff, as nobody is driving the vehicle. Gohan uses the alias \"Great Saiyaman\" once again and pitches in to save Videl and the passengers.
Soon after, Gohan saves the passengers of a plane about to crash and extinguished a fire that caught fire in a building in the city by destroying the water container. On his way to school, Gohan is chased by Videl in her helicopter, who is trying to find out who is hiding under the mask of Great Saiyaman. Gohan escapes by placing Videl's helicopter on the roof of a building. Both of them arrive to school late, which leads Videl to be even more suspicious of Gohan. Later, kidnappers from the Red Shark gang take the mayor of Satan City hostage. The police warn Videl of the situation. Videl confronts the leader of the gang. Great Saiyaman comes to the rescue, but Videl manages to beat him. Gohan saves the mayor of the city while stopping the attempts of the rest of the gang. Videl learns that Gohan was out of school at the same time. Videl is led to believe that Gohan and Great Saiyaman could really be the same person.
The next day, Gohan learns that Chobi, who is the child of Toto the pterodactyl, has been captured by a circus and put on display. In his attempt to rescue Chobi, Gohan is portrayed as a criminal. Videl pursues Gohan as a suspect. When Chobi's parents attack the city in search of their child, Gohan manages to handle the situation and return Chobi to his parents. Videl discovers the truth that Gohan is Great Saiyaman. Videl blackmails Gohan into participating in the 25th World Martial Arts Tournament. As some of the other Z Fighters express interest in the tournament, Goku calls out from the Other World and says he will return to Earth for a single day to participate.
After Gohan spreads word of the tournament to the others as well as managing to convince Chi-Chi to let him participate himself, Gohan takes a leave of absence from school and begins training with Goten. Gohan is surprised to find that Goten not only possesses great strength, but he is also already capable of transforming into a Super Saiyan even though he has yet to learn how to fly. Videl comes around to have Gohan make good on his promise to teach her how to fly.
Soon after, Gohan saves the passengers of a plane about to crash and extinguished a fire that caught fire in a building in the city by destroying the water container. On his way to school, Gohan is chased by Videl in her helicopter, who is trying to find out who is hiding under the mask of Great Saiyaman. Gohan escapes by placing Videl's helicopter on the roof of a building. Both of them arrive to school late, which leads Videl to be even more suspicious of Gohan. Later, kidnappers from the Red Shark gang take the mayor of Satan City hostage. The police warn Videl of the situation, so she responds by confronting the leader of the gang. Meanwhile, Gohan, growing impatient of class since he would rather assist Videl as The Great Saiyaman, starts aggressively tapping his foot, triggering an earthquake. He slid out of class during the confusion and arrives to the scene of the crime as the Great Saiyaman.
After ten days of training, Videl manages to master flight. This finally gives Gohan and Goten the opportunity to resume their training for the tournament. On the day of the tournament, Gohan suggests to Vegeta, Goten, and Trunks that they do not use their Super Saiyan forms during the tournament in order to avoid hassle from the press. Arriving at the island where the tournament will take place, Gohan and the others are greeted by Goku, whom Fortuneteller Baba had granted 24 hours visit to Earth. Goku meets Goten for the first time, while Piccolo destroys all the cameras in the area to keep Gohan's identity a secret. After the participating fighters register for the tournament, Goten and Trunks are forced to participate in the juniors division.
The preliminary rounds begin. The fighters must hit a punching machine to rank their strength. The Dragon Team effortlessly qualifies for the tournament. Vegeta destroys the machine with a single punch. Afterwards, Goku and the others decide to go and watch the tournament of the juniors division.
While Gohan and Videl wait to take their preliminaries, Goku, Vegeta, and the others go to spectate the junior division, where Goten and Trunks effortlessly progress through each round until they face each other in the final round. The battle gets more intense. Goten and Trunks surprise the audience with advanced techniques. The fight between Goten and Trunks continues.
While Trunks seems to have the advantage, Goten turns Super Saiyan to free himself from his opponent's grasp when he was not allowed to do so. Trunks takes on a challenge by trying to beat Goten with only his right arm. The latter also becomes a Super Saiyan and sends an energy ball to hit Goten, which lands on a part of the bleachers. The final juniors division match eventually comes to an end, where a sneak attack by Trunks causes Goten to lose by ring out. Trunks wins the battle as well as the juniors division tournament. Trunks will fight Mr. Satan in an exhibition match. Mr. Satan watched the fight between Goten and Trunks. He is reminded of the battle with Cell. Mr. Satan faces a problem because he has to fight against Trunks. After various attempts to try to get out of the fight, Mr. Satan decides to pretend to lose and have Trunks hold back his attack in order to keep up his public appearance. Trunks' weakest punch manages to send Mr. Satan flying out of the ring.
During an intermission, Trunks and Goten decide to take out one of the participants and steal his clothes. Trunks and Goten take his place in the adult division. As Goku and the others get something to eat, they encounter a pair of mysterious participants named Shin and Kibito, who Piccolo determines as not being from Earth. As the sixteen qualifying participants gather together to decide the drawings for the first round, Gohan is paired up against Kibito. Goku gets paired up against Vegeta.
As the drawings come to a close, Piccolo is put up against Shin. Android 18 is put up against Mr. Satan. After Krillin wins his first match against his opponent, Piccolo and Shin face off against each other. As Piccolo senses an overwhelming power coming from Shin, he decides to forfeit the match before it even begins. Piccolo feels Shin's power is far beyond his own. Videl prepares to go up against a man named Spopovitch.
Piccolo abandons his fight against Shin. Piccolo learns from Kibito that Shin is actually the Supreme Kai. The Supreme Kai is believed to be even more powerful than the Grand Kai. Videl is fighting against Spopovitch. Videl appears to get the upper hand in her match, but Spopovitch keeps getting up no matter how many times he is knocked down. He eventually fights back. Goku suspects that something is amiss about Spopovitch. Goku realizes that Spopovitch is no longer the same person as in the past and thinks that Videl must abandon the fight. The last time Spopovitch participated in the tournament, he barely lasted 5 seconds in front of Mr. Satan. Something has changed in him. He has acquired new powers. This proves true when he continues fighting even after Videl breaks his neck. Seeing his opponent tired, Spopovitch regains the lead over Videl. Videl attempts to use her flight to regain her strength, but Spopovitch follows her into the air and uses energy blasts against her.
With Spopovich nearly beating Videl to death, Gohan loses his temper and prepares to storm onto the field, but Spopovich's partner, Yamu, convinces Spopovich to end the fight by pushing Videl out of the ring. With Videl heavily injured, Goku uses his Instant Transmission to deliver some Senzu beans from Korin, which Gohan gives to Videl to restore her to full health. Gohan, whose identity is revealed to his classmates after his bandana was blown off during his outburst, steps up to face against Kibito, who requests to see Gohan's Super Saiyan transformation. After Piccolo informs the other Z-Fighters of Shin's identity as the Supreme Kai, he orders Gohan to transform. Right after Gohan transforms, Spopovich and Yamu appear and use a device to drain his Super Saiyan energy, leaving him weakened. As Kibito offers to tend to Gohan, the Supreme Kai asks Goku and the others to join him in pursuing the culprits.
Goku returns from the Korin Tower with three magic beans and Son Gohan rushes to the infirmary to give one to Videl, who heals quickly from her wounds. The young man must face Kibito, but realizing that he has lost his headscarf, his classmates discover that Great Saiyaman is none other than Gohan. Kibito forces his opponent to turn into Super Saïyen, which he accepts. Shin asks Son Goku and others not to intervene, as Yamu and Spopovitch are going to attack Son Gohan to steal his energy. Yamu and Spopovitch hold Gohan down, while they plunge a device into Gohan to drain his energy. Their mission accomplished, the two enemies fly away, and Shin flies off in pursuit. Goku, Piccolo, Krilin and Vegeta decide to accompany him.
As Goku and the others set off to join the Supreme Kai, Kibito uses his unique ability to restore Gohan's energy, before the two of them, along with Videl, set off after the others. Along the way, Supreme Kai and Kibito explain to the others about how an evil wizard named Babidi is seeking to revive an evil being known as Majin Buu, who was responsible for the death of four Supreme Kais long ago. To accomplish this, he manipulated Spopovich and Yamu to join the tournament and steal Super Saiyan energy needed to break the seal placed on Buu. Unable to push her flight any further, Videl, coming to understand that Gohan was the one who defeated Cell back then, places her faith in him and returns to the tournament grounds, while Gohan and Kibito catch up to Goku's group. Arriving at the site of a buried spaceship, the Z-Fighters lie in, watch as Spopovich and Yamu deliver Gohan's energy to Babidi and his partner, Dabura, the Demon King.
Supreme Kai and Kibito warn Goku and the others about the malicious pair, with Dabura being the strongest being of the underworld and Babidi possessing magic powerful enough to sway him to become his henchman. Having obtained the energy from them and deeming them of no further use, Babidi kills Spopovich with his magic while having his other henchman, Pui Pui, kill Yamu. Having detected the presence of the Z-Fighters, Babidi and Pui Pui head inside of the ship while Dabura attacks the group, immediately killing Kibito and firing his spit at Krillin and Piccolo, turning them into stone. Learning that they can only unpetrify them by killing Dabura, the remaining fighters chase after him into the ship, despite Supreme Kai's warnings. Upon reaching the first floor, they are confronted by Pui Pui, who informs them they must face several floors before they can reach Babidi at the bottom.
As Vegeta easily outmatches Pui Pui in terms of fighting skill, Babidi changes the stage to match that of the high gravity planet, Zun, where Pui Pui is at his top fighting form. However, this makes no difference to Vegeta, who obliterates his opponent and opens the way to the next floor. Believing that the Saiyans should not be underestimated, Babidi sends in his next warrior, Yakon, and changes the stage to that of Planet Ankoku, but even with the aid of the pitch-black darkness, Yakon is no match for Goku's keen senses. When Goku turns Super Saiyan, however, Yakon uses his ability to consume light and sucks in Goku's energy, reverting him into his normal state. Rather than finding an alternative way to fight, Goku instead feeds him even more Saiyan energy, until he explodes from being overloaded, allowing Goku and the others to move onto the next stage.
As Babidi fears the power of the Saiyans, Dabura decides to face them himself, going inside a meditation chamber to raise his power before his battle. Meanwhile, back at the tournament, Goten and Trunks take a break from their Mighty Mask disguise to get some drinks, barely avoiding having their cover blown. With Goku and the other members still missing, Mr. Satan suggests that a battle royale be held between the remaining contestants; #18, "Mighty Mask", Killa, Jewel, and himself. As the match begins, Killa and Jewel are quickly dispatched by #18 and the Trunks/Goten combo, who proceed to ignore Mr. Satan and go after each other.
As the battle between #18 and \"Mighty Mask\" continues to escalate, #18 struggles to keep up with her opponent's unpredictable moves, but manages to land a critical hit against the pair, knocking them into the center of the stage. Goten and Trunks decide to switch places with Goten now on top, pushing #18 to the point where she starts using energy blasts against them, but she manages to hit back with support from her daughter. The pair decide to go Super Saiyan and launch a powerful blast at #18, but she manages to dodge it and reveal their true identity, resulting in the pair becoming disqualified, leaving #18 and Mr. Satan as the only remaining fighters. As Goten and Trunks come across Videl upon her return, Dabura emerges from his meditation chamber, ready to face off against Gohan.
Noticing his complete lack of fighting skill, #18 makes a deal with Mr. Satan to let him win the match and maintain his dignity in exchange for twice the price money. Meanwhile, Goten and Trunks, having heard about the current situation from Videl, become interested and head towards the action. Back at the spaceship, Dabura appears before Gohan, deciding to give him a handicap by choosing an arena similar to Earth's environment. As the fight gets underway, both Gohan and Dabura bring out their full power against each other. Despite being hit by some of Dabura's powerful attacks, Gohan refuses to lose against him.
As the battle between Gohan and Dabura continues, Vegeta's impatience to settle things with Goku catches the attention of Dabura, who decides to abandon the fight and report to Babidi. Learning that Vegeta still retains a lot of evil in his heart, Babidi uses his magic to target Vegeta's mind and sway him over to his side. To make matters worse, Babidi transports everyone to the tournament grounds, where Vegeta, still focused on his desire to defeat Goku, prepares to face off against him, even with innocent bystanders watching.
Vegeta begins his attack on Goku, killing several innocent people in the crowd without any remorse. Realizing that Vegeta had fallen under Babidi's spell on purpose, purely for the sake of his grudge, Goku is left with no choice but to fight against him, despite Supreme Kai's attempt to stop him. Goku also has Babidi warp them to someplace else where they can fight alone. As Supreme Kai and Gohan decide to go on ahead and leave the two Saiyans to their fight, Babidi attempts to command Vegeta to kill them, but his pride defies even his master's demands.
While Goku and Vegeta's fight gets underway, building energy for Majin Buu each time Goku takes damage, Gohan and Supreme Kai arrive at Majin Buu's egg, where they are confronted by Babidi and Dabura. Before the fight between them can begin, Majin Buu's egg reaches full power, as a result of Goku and Vegeta's battle.
Goku and Vegeta's fight continues to escalate, with Vegeta revealing he chose to go under Babidi's control in order to gain the strength to face against Goku, feeling he needed to get rid of his gentle side. Meanwhile, as the seal containing Majin Buu starts to be break, Gohan attempts to stop him reaching full power by shooting multiple Kamehameha Waves at the egg. The egg splits apart with seemingly nothing more than pink smoke coming out of it, leading Supreme Kai to presume Majin Buu had been destroyed. However, Gohan senses a powerful energy from the smoke, which forms together to make Majin Buu, who appears to be nothing more than a mere child.
Everyone seems to be bewildered by Buu's childlike behavior, curious as to whether his rebirth was actually unsuccessful. However, Buu soon shows off his frightening strength when he effortlessly beats Dabura, the rise in his power level even catching the attention of the other Saiyans. Although Goku tries to convince Vegeta to postpone the fight in order to stop Buu, Vegeta knocks out Goku when he drops his guard, taking Goku's senzu bean and setting off to fight Buu himself. Gohan and Supreme Kai attempt to flee from Buu, but he easily catches up to them, proving himself immune to Supreme Kai's attacks.
Buu completely overwhelms Supreme Kai and Gohan, with Supreme Kai using the last of his strength to make sure Gohan survives Buu's attack. Before Buu can finish Supreme Kai, he is attacked by Dabura, who believes he cannot be made to obey anyone. Meanwhile, Goten and Trunks arrive nearby, inadvertently breaking the petrified Piccolo. Unfazed by Dabura's attacks, Buu uses his unique ability to turn Dabura into a cookie and eats him, undoing the petrification on Krillin and Piccolo, the latter of whom survived being broken thanks to his regenerative abilities. Before Buu can do the same to Supreme Kai, Vegeta arrives on the scene.
Vegeta, willing to put his life on the line, begins his assault on Buu, managing to blast a hole through him. However, Buu manages to regenerate himself and builds up his anger to create a giant explosion, dealing a great amount of damage to Vegeta.
As Vegeta is ensnared by Buu, Trunks and Goten can no longer stand by, and rush to the scene to rescue him, while Piccolo attacks the defenseless Babidi and rips him to pieces. Feeling he cannot defeat Buu with conventional means, Vegeta says his farewells to Trunks before knocking both children out, instructing Piccolo to take them far away. Once everyone is cleared from the scene, Vegeta uses his last resort, overloading his Super Saiyan form and sacrificing himself in a massive self-destructive explosion, in order to obliterate Buu.
As Bulma and the others from the stadium follow Videl's directions in pursuit of Goten and Trunks, they are hit by the shockwave from Vegeta's attack and almost crash, but are saved by #18. Piccolo leaves Goten and Trunks with Krillin, telling him to inform the others that Vegeta and possibly Gohan have been killed, before he investigates the site of Vegeta's sacrificial attack, finding various charred fragments of Buu, along with Babidi, who narrowly survived the explosion. However, Piccolo is shocked to witness Buu's fragments suddenly come to life and reassemble, to bring Buu back to his normal form. As Buu uses his power to heal Babidi, who vows to make the planet suffer, Piccolo decides to take Goten and Trunks up to Kami's tower. Elsewhere, Goku regains consciousness and tries to determine the situation, while a weakened Supreme Kai searches for Gohan, whose fate is still unknown.
Bulma's group goes to seek out the Dragon Balls so they can revive all the spectators that Vegeta killed, coming up against a large dragon whilst trying to get the last one. Meanwhile, as Piccolo and Krillin as they leave Goten and Trunks in the care of Dende and Mr. Popo, they are soon joined by Goku, who learns about the situation. Goku states he isn't strong enough to defeat Buu, but mentions having learned a technique known as Fusion, in which two similarly built fighters can merge together to become a single powerful fighter. Though he had originally planned to do this himself with either Gohan or Vegeta, Goku realizes from Mr. Popo that he can instead teach this technique to Goten and Trunks, due to their similar size.
Using the Dragon Balls, Bulma summons out Shenron, using one of its wishes to bring back everyone who had been killed that day. As using all three wishes would mean they would have to wait another year before they can use the Dragon Balls again, Goku warps over to Bulma's group and convinces Shenron to postpone the other two wishes, shortening that time to four months. Kibito, who was revived by the wish, manages to find Supreme Kai and heal his injuries, and together they manage to find Gohan and decide to bring him to the world of the Kais. Meanwhile, Goku warps Bulma and the others to Kami's Palace, where he informs them of the grim situation concerning Gohan and Vegeta, before Babidi announces his message to the world.
Babidi announces that he will have Buu destroy the planet unless Piccolo, Goten, and Trunks are brought to them within five days. Piccolo almost sets off but Goku convinces him to stay, saying they can bring back everyone who dies with the Dragon Balls. Meanwhile, Gohan, Supreme Kai, and Kibito arrive in the world of the Kais, where Supreme Kai reveals he wants Gohan to master the legendary Z-Sword in order to defeat Buu. Back at the palace, Goten and Trunks wake up and are given a crash course in Fusion by Goku.
Using his Super Saiyan strength, Gohan manages to pull the Z-Sword from its resting place, finding it to be incredibly heavy. Meanwhile, Babidi makes another broadcast of Buu laying waste to another city, prompting Trunks and Goten to contact him, informing him that they will soon grow strong enough to defeat them. The pair soon begin their Fusion training, learning how to match their Super Saiyan energy with each other. Meanwhile, Babidi learns where Trunks lives, and announces his plans to attack Capsule Corporation in Metro West.
Realizing that they won't be able to find the Dragon Balls if the Dragon Radar is destroyed, Goku orders Trunks to head to West City to retrieve the Dragon Radar from Capsule Corporation, while he heads off to delay Buu and Babidi. In order to buy Trunks some time, Goku builds up a large amount of energy, which also uses some of his remaining time on Earth, to transform into his ultimate form, Super Saiyan 3, with its immense power being felt even in the world of the Kais.
As Goku begins his battle against Buu, who demonstrates an ability to copy other people's techniques, Trunks arrives at Capsule Corporation, but struggles to find where the Dragon Radar is. Bulma soon realizes that she had left the Dragon Radar in her aeroplane, and manages to inform Trunks about it. Sensing Trunks has accomplished his mission, Goku undoes his Super Saiyan 3 transformation once more, and takes his leave after informing Buu that Trunks and Goten will be ready to fight him in two days. Shortly after Goku leaves, Buu, deciding he has no further use for Babidi, turns against him and kills him.
Without Babidi to order him around, Buu continues to freely destroy cities while waiting for his opponents. With less than thirty minutes left on Earth due to the energy spent in Super Saiyan 3, Goku wastes no time teaching Goten and Trunks the key to the Fusion technique, the somewhat embarrassing-looking Fusion Dance.
Buu lays waste to another village, turning its citizens into clay in order to build himself a house for a brief rest. Meanwhile, Goten and Trunks, slightly bored from their training, ask Goku to show them his Super Saiyan 3 transformation. However, upon doing this, Goku uses up the remainder of his time on Earth. After saying goodbye to everyone, Goku returns to the afterlife, leaving the Fusion training in the hands of Piccolo. Meeting up with Yemma, Goku is relieved to hear that Gohan isn't dead and decides to follow his energy trail.
Goku arrives in the Realm of the Kais where Gohan is training with the Z-Sword, deciding to help him with his training. Meanwhile, Buu, who has already killed two thirds of Earth's population, comes across a blind young boy and heals his vision, becoming surprised when he thanks him instead of being afraid. With Gohan growing more proficient with the Z-Sword, Goku tests out the sword's sharpness by throwing a metal cube at it, only to inadvertently break the sword in half instead. However, from the broken sword emerges the Supreme Kai of fifteen generations ago, Old Kai.
After some dubious persuasion from Goku, Old Kai reveals he has the ability to draw out someone's true power beyond their limits, though this turns out to be a lengthy process that can take over a day to complete. Meanwhile, Goten and Trunks try out the Fusion Pose for real, but an error in the Fusion Pose results in the merged fighter, Gotenks, ending up with a failed transformation. After another failure, the pair eventually perform a successful fusion and transform into the true Gotenks who, confident that he can defeat Buu with his current power level, goes off in search of Buu, despite Piccolo's warnings.
Gotenks arrives to fight against Buu but, despite showing a great amount of strength, is overwhelmed by his power, barely managing to escape from him after he launches an all-out attack against the armed forces. Meanwhile, Mr. Satan reluctantly confronts Buu, who becomes amused with his traps disguised as presents, and decides to make him his servant.
After completing his ceremony, Old Kai instructs Gohan to sit still for the next 20 hours in order to complete the power-up. Meanwhile, Goten and Trunks learned how to perform the fusion while in Super Saiyan form, becoming Super Gotenks. Gotenks' cockiness almost leads him to confront Buu again, but ends up retreating when the Fusion time runs out. Elsewhere, Buu inadvertently befriends a small dog after healing its injured leg, while Mr. Satan almost manages to convince Buu to stop killing humans. However, a hunter looking to take down Buu for himself relentlessly shoots the dog, leaving Buu shocked and infuriated.
After managing to calm down Buu's rage by dealing with the thugs himself, Mr. Satan discovers that the dog is barely alive, with Buu managing to heal him just in time. As Buu, Mr. Satan, and the dog start becoming closer, Mr. Satan decides to stop taking advantage of Buu's innocence and become his earnest friend. However, the thugs from earlier show up and shoot Mr. Satan, once again causing Buu to be overcome with anger. After healing Mr. Satan, Buu instructs him and the dog to get away from him, as the evil in his body escapes and transforms into a tall, grey, emaciated version of Majin Buu.
Buu attempts to fight against the Evil Buu, but out that finds he is much weaker, as most of his power had been transferred over to his evil side. As such, Evil Buu manages to reflect Buu's candy attack back at him, turning him into chocolate before eating him and gaining his power, giving him a more complete form. Sensing the energy of Piccolo and the others, Evil Buu arrives at Kami's Palace, demanding to fight against Gotenks. Piccolo attempts to stall for time by telling Evil Buu to wait until all earthlings are killed, instructing Krillin to bring Goten and Trunks to the Hyperbolic Time Chamber to make use of what little time they have.
Piccolo's hopes of being able to buy some time are dashed when Evil Buu unleashes a powerful homing attack which targets and kills every human on the earth, with the exception of Mr. Satan, Tien, and Chiaotzu. Piccolo, along with Videl, manages to convince Evil Buu to wait for an hour so that Goten and Trunks can train. Meanwhile, Gohan, tired of waiting any longer for Old Kai's power-up, discovers that he has indeed managed to increase his power and agrees to wait for the power-up to be completed. Becoming further angered when Evil Buu kills an impatient Chichi, Goten barely holds in his anger and joins Trunks in the Hyperbolic Time Chamber. With Evil Buu growing impatient after only thirty minutes, Piccolo tries to buy as much time as possible as he slowly leads Evil Buu to the chamber, believing that even if Goten and Trunks fail, they can destroy the chamber's entrance and trap him there.
Piccolo continues to lead Evil Buu to the Time chamber, when Goten and Trunks train hard to avenge the loved ones that they have lost. After rerouting Buu through Kami's palace, due to Buu being extremely unhappy and throwing tantrums every now and then, Piccolo takes Buu to the Time chamber, and Gotenks fights Buu after a warm-up round and playing around.
Super Buu and Gotenks begin to fight, and Gotenks decides to use some of his new special moves. The problem is that these moves, while flashy, are ineffective against Buu, not to mention they have ridiculous names, like the "Screaming Angry Wombat". After it is clear that these moves have no effect, Gotenks talks strategy with Piccolo. He then creates a ring of energy, the "Galactic Doughnut" and uses it to trap Buu. After a brief struggle, Buu is able to break the ring. The two then do a bit of real fighting. Gotenks decides to use another one of his special moves, called the Super Ghost Kamikaze Attack. He spits out a ghost of himself, and plans to use it against Buu. Gotenks creates ten ghosts that detonate with explosive force when they are touched. He sends all but one at Super Buu, and they reduce him to a deformed puddle of his former self. Gotenks sends the final one down Buu's mouth, blowing him into tiny pieces. Gotenks and Piccolo destroy all of the pieces, but the smoke coming from the pieces gathers above their heads and reforms Super Buu. To play up the drama of the situation, Gotenks acts like he's out of ideas, and Buu begins beating up the fused Saiyan. Thinking that Gotenks cannot stop Buu, Piccolo destroys the door to the outside world, which traps the three of them in the Chamber for all eternity.
Hysterically upset at the prospect of being trapped in the Hyperbolic Time Chamber forever, with nothing to destroy and no candy to eat, Super Buu starts to scream. To everyone's surprise including his own, his screams become so powerful that they create a hole in the barrier between the dimensions of the chamber and Earth. Buu changes shape in order to fit through it, and the hole closes, leaving Piccolo and Gotenks trapped. Back on The Lookout, Buu is hungry and excited at the prospect of turning more people into food, and so he turns everyone on the lookout into chocolate. Piccolo and Gotenks have been attempting to scream loud enough to create an inter-dimensional hole like Buu did, but they have no success. Gotenks decides to play his trump card, transforming into a Super Saiyan 3. In this state, he has the power necessary to create a hole for him and Piccolo to jump through. Upon their return to the lookout, Buu tells Gotenks that he ate all of his friends, and enraged, Gotenks promises Buu that he will pay.
Gotenks and Super Buu begin to fight, and the collateral damage from the battle begins to destroy The Lookout. Buu slams Gotenks down through The Lookout itself. Down on earth, Gotenks tries another Super Ghost Kamikaze attack, but it once again fails. Buu lands a powerful hit on Gotenks that sends him flying back into The Lookout. Buu then folds himself into a ball, and begins repeatedly shooting himself through The Lookout until all that's left is rubble floating in the air. While still in a ball, Gotenks is able to trap him in a little sphere. He and Piccolo then play some volleyball with Buu, and Gotenks spikes him down to earth. Just when it seems like Buu is dead, a powerful blast of energy comes from the crater. With Buu once again ready to fight, Gotenks only has a few minutes until he separates.
Gotenks and Buu continue their fight. Gotenks seems to be wearing Buu down, and he now has the upper hand in the fight. Just as he's about to hit Buu with his final move, Gotenks unexpectedly returns straight to his normal state from his Super Saiyan 3 form. The power was too high for him to sustain. Buu begins beating up Gotenks, who is now no match for him. Gohan has finally finished his training, and is ready to return to earth. After saying goodbye to Goku for what they both believe will be the last time, Kibito takes him back, and Gohan asks him to change his clothes. He's now wearing clothes just like Goku and arrives just in time, because Gotenks has separated.
Gohan arrives at the scene, and everyone is shocked at how much power he has. After Gohan expertly pounds him to a pulp, Buu heals himself and steps up the intensity, but Gohan still has the upper hand. He is easily picking Buu apart. Realizing that he's totally outmatched, Buu decides to self-destruct, hoping to take Gohan with him. Gohan escapes before Buu explodes, and he takes the others with him out of the blast radius. Afterwards, there is no sign of Buu, but Gohan knows that he's still around. They suddenly detect Dende's energy signal, and they go to find him. On the way, they pick up Hercule Satan and the dog, Bee. Dende explains that as Buu was escaping through the interdimensional hole, Mr. Popo threw him from the lookout, because without Dende, there would be no Dragon Balls to grant the wishes they intend to use to reverse all the damage. Buu tracks them down, but instead of having a rematch with Gohan, he calls out Goten and Trunks.
Unknown to the others, Buu secretly separates two chunks from his back, and the two pink blobs creep around behind the others. As soon as Goten and Trunks fuse, one of the blobs encases Gotenks. Piccolo, too, has been covered by a pink blob. Buu calls each of the blobs back to him, which merge with him, changing his appearance and giving him access to all of Piccolo's and Gokenks' memories, abilities and power. The new and improved Super Buu then fights Gohan, and it's clear that Buu has the advantage. Gohan is unable to keep up with Buu's new speed and strength. Buu taunts Gohan by telling him what his three friends that were absorbed think of him.
Gohan is no match for the new Super Buu. Buu now possesses new skills, such as the Super Ghost Kamikaze Attack and the Special Beam Cannon, each of which he uses on Gohan. He is about to finish Gohan, when Bee comes running up. Hercule tries to save Bee, but is only several times stronger than the average human - nothing compared to Buu. Buu is about to blast each of them when Gohan saves them. Buu then uses Gotenks' Galactic Doughnut trick on Gohan, and aims a Kamehameha wave at him, but Gohan is able to summon enough strength to break free and move out of the way in time. Meanwhile, in Other World, King Yemma decides to send Vegeta back to earth to help in the fight against Majin Buu. On the world of the Kais, Old Kai decides to give his life to Goku so he can return to Earth and fight Buu. The now deceased Old Kai gives Goku his earrings. He explains to Goku that if he and another person each wear one, they will fuse together.
Old Kai tells Supreme Kai and Kibito to try a fusion with their earrings, but only after they fuse together does he reveal that it is a permanent fusion. Dende heals Gohan's injuries, so to prevent this from happening again, Buu creates a giant energy ball and aims it at Dende. Just before it hits, it is deflected by Tien's Tri-Beam attack, who has decided to help, even though he is terribly outclassed. Buu tries again, but Goku suddenly appears and sends a disk of energy at the monster. It cuts off his legs and part of his head. His legs deal Tien a crushing kick which completely incapacitates him and then they return to Buu. Desperate to stop Majin Buu, Goku throws Gohan the other earring, but his aim is off and the earring is lost in the rubble. Goku goes Super Saiyan 3 in an attempt to hold Buu off while Gohan searches for the earring. Inside Super Buu, Gotenks' fusion wears off, splitting back into Trunks and Goten, causing Buu to lose well over a third of his power and his appearance to change. Realizing what's happened, Goku declares he can now defeat Majin Buu without fusing with Gohan and prepares to fight. Knowing he needs a massive power increase, Buu causes the part of his head that was cut off earlier to suddenly engulf Gohan, just like Piccolo and Gotenks. He reabsorbs the blob containing Gohan, and is now even more powerful than he was with Gotenks absorbed. Now back in control, Buu toys with Goku, telling him he has some time to find someone to fuse with. He considers fusions with Dende and Hercule, but neither of them are appealing possibilities. He suddenly senses that Vegeta has returned, and uses Instant Transmission to teleport to his location. While Buu is distracted, Dende heals Tien. After Goku finds Vegeta, Goku tries to convince him to fuse, but Vegeta is angry at Goku because he knows Goku was holding back his Super Saiyan 3 transformation when they fought. With Vegeta refusing to cooperate, they are forced to take on Buu as individuals, but are clearly outclassed. Goku tells Vegeta that Buu absorbed Trunks and killed Bulma and asks him to put their differences aside to save their people. Vegeta finally agrees, and only when he puts the earring on does Goku mention that the fusion is permanent. The two last surviving Saiyans fuse and a new being is created.
The new being names himself Vegito, and begins to fight Buu. He clearly is far superior to even the new Super Buu. In Other World, Bulma, Videl, Chi Chi, and Dabura are looking for Gohan, whom they mostly believe to be dead. When Dabura arrived at the Check-in Station, he resisted the guards attempts to subdue his aggressive behavior, and knowing Dabura would enjoy being sent to hell, King Yemma turned him good. Back on earth, Dende and Hercule arrive at the battle scene, just as Buu has decided to destroy the earth. He creates a massive ball of energy, and throws it towards the earth. Vegito easily catches it, and deflects it back out into space. Buu claims that he has yet to fight at his full power. Vegito says the same, and powers up to a Super Saiyan. Now calling himself Super Vegito, he continues to thrash Super Buu. Buu tries to hide himself with his own steam to gain an advantage, but Vegito continues to batter him. On the Grand Kai's planet, Krillin and Yamcha are training with King Kai. Back on earth, Buu is starting to become desperate. He liquifies himself, and shoots down Vegito's mouth, entering his body and turning him into what looks like a super-muscular version of himself. While inside Vegito, Buu takes control of his body and boasts that he will use him to destroy him from the inside, but Vegito uses his energy to isolate all of Buu into one spot and pound him. Buu moves around but Vegito simply continues to pound him. Buu is forced to exit Vegito's body. Realizing he doesn't know how he can save himself, Super Majin Buu begins to freak out, and the immense amount of energy he releases into his surroundings threatens to tear apart the universe itself. Realizing this, Vegito tries to stop him, but Buu has put up a shield around himself. After a long struggle, Vegito breaks through the shield and stops Buu.
Vegito and Buu continue to fight, but Vegito is still far more powerful than his opponent. He repeatedly dominates Buu, which makes Buu angrier and angrier. Vegito is just toying with him. Buu hatches a plan, and calls Vegito out. Vegito comes closer, and Buu turns him into candy. As Buu celebrates his apparent victory, the Vegito candy unexpectedly begins to attack Buu. It turns out that Vegito is somehow still in full control of his new, candy body, and that he is just as powerful as he was before, and can even still talk! (Albeit in a higher pitch). The candy Vegito is just as fast as Super Vegito, and due to its tiny size, is impossible for Buu to hit. Infuriated at being toyed with by a piece of candy, Buu changes it back into Vegito, who then continues to beat him up. Vegito literally starts tearing Buu apart. He gives Buu until the count of ten until he destroys him, and during this countdown, Buu notices a part of himself that Vegito tore off down on the ground. This part rises up behind Vegito, and before Vegito reaches ten, he is engulfed by the pink blob. Buu calls the blob back to him and absorbs it.
After absorbing Vegito, Buu notices that he has not taken on any of his characteristics. He guesses this is because he hasn't digested Vegito yet. Inside Buu, Vegito still exists intact, and separate from Buu. It turns out that Vegito had planned this, putting up a barrier during the absorption, and letting himself be shrunk by Buu's magic absorption process, but not incorporated into his being. Once he dispels the barrier, Vegito unexpectedly splits back into Goku and Vegeta. Taking advantage of this unexpected event, Vegeta crushes his fusion earring, not wanting to give up his independence from Goku by permanently fusing with him. He cites that once they free their absorbed friends, Buu will lose most of his power and they won't need to be fused to defeat him. Goku and Vegeta cut down the cocoons of Gohan, Goten, Trunks, and Piccolo, and as they do, Super Buu regresses to his normal form. Dende and Hercule continue to follow Buu. Back inside Majin Buu, Goku and Vegeta also find the fat Majin Buu. They read his thoughts to find out what happened to him. Suddenly, a thought form of Super Buu himself appears. The two join forces to defeat it, but once they do, another one appears. They realize that this is a battle they cannot win. Buu finally decides that he's had enough, and he tries to absorb Goku and Vegeta.
Goku saves Vegeta from being absorbed. As Vegeta recovers, Goku continues to fight the thought form of Super Buu. Goku is rapidly losing energy, and just as Super Buu is about to defeat Goku, Vegeta cuts down the pod containing the fat Majin Buu. This causes Super Buu to go mad, as without the fat Majin Buu absorbed, Super Buu cannot exist. As Super Buu's insides begin to change, Goku and Vegeta realize they must leave, and so they grab the pods containing Gohan, Goten, Piccolo and Trunks and try to find a way out. On their way through his body, they notice one of the tunnels that leads to one of the holes in Buu's skin where the steam escapes. They are able to fly out through here, and when they emerge on the other side, all six of them regain their normal size. As Goku and Vegeta set the pods down, they observe Super Buu changing into a different being. He first transforms into a hulking form, and then shrinks into a childlike version of himself.
Supreme Kai explains to Old Kai that there were once one five Supreme Kais. He was one of the four that each ruled over a quadrant of the universe, and the fifth was their leader. He says that this latest, childlike version (Kid Buu), is the original, true Majin Buu, and by far the most powerful of them all. Supreme North and West Kai perished against him. Supreme South Kai was absorbed, changing the original Majin Buu into the hulking form that was seen briefly in the previous episode. The leader, Dai Kaio, was then absorbed by that form, but this absorption changed Buu into the fat, happy Buu that came out of the ball. This absorption of the Kais actually weakened Buu, making him less focused and less destructive. Back on earth, Kid Buu creates a powerful ball of energy and throws it at the earth, intending to destroy it. Goku and Vegeta deflect it. In retaliation, Kid Buu then a creates a ball ten times more powerful than the previous one and throws it. Knowing that they currently do not have enough strength left to stop it, Goku and Vegeta try to grab everyone and teleport away, but are only able to grab Dende, Hercule, and Bee. As the Earth is about to be destroyed, Supreme Kai appears and instantly transmits Goku, Vegeta, Dende, Hercule, and Bee to the world of the Kais.
Kid Buu is blasted apart by the explosion, but he reforms after the destruction of the Earth, and goes on a rampage throughout the galaxy. He goes from planet to planet, looking for Goku and Vegeta, and then destroys each planet when he doesn't find them. He goes to the Grand Kai's planet, and starts to toy with everyone there. When he becomes bored, he creates an energy ball, intending to destroy the Grand Kai's planet. Supreme Kai offers Goku and Vegeta his fusion earrings, but they both refuse them. They raise their power levels so Buu will know where to find them. Buu abandons his attempt to destroy the Grand Kai's planet and teleports to the world of the Kais. The Supreme Kai transports himself, Dende, and Old Kai to a distant planet so they will be out of Goku and Vegeta's way, along with a crystal ball that allows them to watch the battle. Unfortunately, they forget to take Hercule and Bee along. Goku and Vegeta play rock, paper, scissors to decide who will fight first, and Goku wins. He powers up to Super Saiyan 2, and starts beating up Buu. Goku blasts him apart, but he reforms. Buu creates another massive energy ball and throws it down at the planet. Goku is able to deflect it, but Buu guides the ball back around and into the planet. Powerful shock waves rock the entire planet, disfiguring its shape and leaving the surface ragged and uneven. Goku decides to power up to Super Saiyan 3.
Goku and Kid Buu continue to fight, each taking powerful blows from each other. Kid Buu folds himself into a ball again, and hits Goku hard. Goku puts all of his energy into a massive Kamehameha, but Buu just reforms afterward. Goku returns to his normal state, collapsing from exhaustion. Vegeta then steps in, but that finds he is no match for Buu. Buu cleans his clock, and just as he's about to deal Vegeta the finishing blow, Goku pushes him out of the way. He then powers back up to Super Saiyan 3 and continues their furious fight. Vegeta reminisces about all of the fights he and Goku were in. He finally admits to himself that Goku is better.
Goku continues to fight Buu, and he seems to have the upper hand. He deals a lot of damage to Buu, but as the fight goes on, his hits become weaker and weaker until they have virtually no effect at all. He tells Vegeta that it's his turn, but Vegeta declines, deciding that he is no match for Buu. He tells Goku that Buu is too powerful for him and that Goku stands a much better chance of destroying him. Goku is shocked and unsettled by this admission, telling Vegeta that he deliberately let the fight drag on so that Vegeta could have a turn, and that now he is exhausted. Vegeta is horrified by this, because now they cannot stop Buu. Goku unsuccessfully attempts to reassure Vegeta, telling him that he needs one uninterrupted minute to power up enough to destroy Buu. Despite the fact that Vegeta recognizes that he will need a miracle to survive a minute against Buu now, he reluctantly steps in while Goku is powering up, even though Goku tells him that if he is destroyed when he is already dead, Vegeta will no longer exist in any form. Buu thrashes Vegeta, but every time he gets knocked down, Vegeta gets up, ready for more. Buu stretches out his arm, wraps it around Vegeta's neck, and begins choking him for fun. It's been more than one minute, but Goku still hasn't generated the power he needs.
Fat Majin Buu enters the fight, saving Vegeta from death. However, he is no match for Kid Buu, who begins to severely beat him. Hercule tries to help Fat Buu, but is ineffective. Vegeta suddenly comes up with a plan. He communicates with Dende, telling him to go to New Namek and gather the Dragon Balls. The Supreme Kai and Old Kai take Dende there, and the Namekians are waiting with the seven balls. Porunga is summoned, and Vegeta tells Dende his two wishes: bring back the earth and restore it to its undamaged state, and bring back all of the non-evil people that died since the morning of the World Martial Arts Tournament. These wishes are granted, and even Vegeta himself comes back to life, proving that he is no longer evil. He finally reveals the main part of his plan to destroy Buu: the Spirit Bomb.
The people of earth come back to life, including the Z Fighters and their friends. Goku gets into position to create the Spirit Bomb, and with the help of King Kai, Vegeta speaks to the entire population of earth. He tells them what's going on, and that to defeat Buu, they need to raise their hands up and offer their energy. Only Goku and Vegeta's family and friends comply. No one else is willing to listen to a mysterious voice from the sky. Vegeta repeatedly pleads with the earthlings, but to no avail. While this is going on, Fat Buu is buying them time by fighting Kid Buu, but it's not going well. Goku hasn't gathered nearly enough energy to destroy Buu.
Vegeta continues to plead with the people of earth, but no one will listen to him. Fat Buu has finally lost all of his energy, so Vegeta is forced to fight Kid Buu. He is no match for him, and gets severely beaten. Now Goku asks the earthlings to raise up their arms and donate some of their energy, and small pockets of people who recognize his voice or just like the sound of it do so, but the vast majority remain uninterested. Piccolo, Gohan, Goten, and Trunks spread out into the city, hoping to convince people to raise their arms. Hercule has finally had enough, and he speaks to the people of earth. When they hear the familiar voice of the "World Champion," all of the people of earth raise their arms and offer their energy. The Spirit Bomb is finally ready.
Goku is ready to throw the Spirit Bomb, but Vegeta is in the way, and, despite Vegeta's pleas otherwise, he refuses to take out Vegeta along with Buu. Suddenly, Fat Buu gets up and holds Kid Buu down long enough for Hercule to pull Vegeta to safety. Kid Buu kick Fat Buu aside, and Goku throws the Spirit Bomb. It hits Kid Buu, but he starts pushing it back. Goku uses all of the remaining energy he has left trying to push it back into Kid Buu, but he is too powerful. After a brief panic, Vegeta suddenly remembers that they still have a third wish with Porunga. He instructs Dende to wish for Goku's power level to be restored to its normal, healthy level. The wish is granted, and upon turning into a Super Saiyan, Goku is easily able to force the Spirit Bomb back at Kid Buu. As he does so, he silently wishes that Buu had been a better person, and hopes to fight him as a different person, some day in the future. The Spirit Bomb hits with full force, finally destroying the evil, childlike Majin Buu permanently. After billions of years of destruction, he has finally been brought to justice.
With Majin Buu defeated, peace has returned to Earth. Finally, the fighters can sit back and party!
Ten years have passed, and much has changed. Gohan has become a scholar, and Trunks and Goten are in their late teens. Goku is training with Goten when Bulma and Vegeta, who have a new daughter, Bulla, show up after not seeing him in five years. Goku says that he and Goten will be entering the World Martial Arts Tournament, so Vegeta says that he and Trunks will do the same. The day of the tournament comes, and old friends catch up. Everyone has arrived to watch. Gohan, who is now married to Videl, has decided not to enter, but his daughter, Pan, will fight. Since there is no junior division this time, she will be fighting with the adults. Hercule and Buu will also be fighting. However, Goku says that there is someone who is 100% human that can threaten to beat him and Vegeta. The seeding draw for the tournament begins, and Goku asks Majin Buu to use his magic to rig it so that he faces the powerful mystery fighter he had talked about. In the first match, Pan faces Wild Tiger, and the four-year-old easily dispatches him. Next up is Goku against a ten-year-old boy named Uub. Uub is the reincarnation of the evil Kid Majin Buu. King Yemma apparently heard Goku's wish right before the evil Buu was destroyed, and he reincarnated him as a good person named Uub. Uub is apprehensive, so to bait him into fighting, Goku eventually resorts to taunting the young boy. After a particularly nasty insult and a kick to the face, Uub has snapped, and is now ready to fight.
Goku and Uub begin to fight, and it is clear that Uub does not know much about fighting. But as the match goes on, he learns more and more, and more and more of his hidden power is released until he is able to go toe to toe with Goku in his base state (without Goku powering up). When Goku does power up slightly (in his normal state) Uub nearly falls out of the ring, but Goku saves him from hitting the ground. He realizes that Uub doesn't even know how to fly, so Goku decides to train him. Despite his friends and family pleading with Goku to stay, he flies away with Uub on his back. Goku decides to train Uub to defend the Earth when he's gone. He hopes one day, when Uub's training is complete, to have a real all-out match with him to test their power. Goku and Uub fly off into the distance with whoops of joy.
