The Dragon Ball series is good at treating its viewers with amazing villains. One of the most memorable villains was Majin Buu, the final boss of Dragon Ball Z. At the start of his appearance, the fans and the characters didn't think much of him. Physically, he didn't look intimidating. However, Buu proved to be one of the most powerful characters in the series.

Buu's anatomy allows him to manipulate his body like clay, allowing him to go through more transformations than any other villain by way of absorption. Thanks to his many forms, there will always be discussions about which Buu form is the most powerful. All Majin Buu forms bring with them different traits and personalities. Buu fought in numerous long-lasting battles that are praised for being some of the most epic fights of the series, a testament to his impressive power.

Updated on March 9th, 2023 by Brittanie Maldonado: While Majin Buu's role in Dragon Ball Super hasn't been the best, Buu does get to show off a bit, especially during the Galactic Patrol Prisoner saga. The article has been updated to reflect Buu's most recent exploits and to update any relevant information.

12 Who Is Majin Buu?

Several years before the beginning of the original Dragon Ball, Majin Buu was a vicious being who existed only to destroy. Revived by the wizard Bibidi, Buu went on to kill some of the immensely powerful Supreme Kais. He even absorbed the Grand Supreme Kai, but this heroic being's jolly nature had a major impact on Majin Buu and made him slightly more docile.

Centuries later, Bibidi's son Babidi found the sealed Majin Buu and restarted his reign of terror. Thankfully, his now conflicting nature causes him to see the good in the world, resulting in his evil and good halves being split into two creatures. Both incarnations took on numerous Buu forms, and each of these Majin Buu transformations had something different about them,

11 Slim Buu

Dragon Ball Super – Universe Survival Saga

After the disappointing showing for Good Buu in the Tournament of Destroyers where he was disqualified for falling asleep during the qualification testing, fans were eager to see if Buu would get a chance to shine in the Tournament of Power. Good Buu had a fun fight against Universe 9's Basil in an exhibition match, which motivated him to train.

The result of his training with Mr. Satan was "Slim Buu." Slim Buu boasts the same personality as Good Buu, but with a body that more closely resembles Super Buu. However, this form of Majin Buu once again fell asleep, leaving Team Universe 7 desperately scrambling to find a new member, which did work out well in the end.

10 Evil Buu

Dragon Ball Z – Fusion Saga

While Good Buu had a good-hearted and childish personality, Evil Buu was much scarier. Evil Buu was the result of Buu's dark energy separating itself from Buu. This second Buu is drastically different in appearance, possessing a thinner body and gray skin. It wasn't long before Evil Buu went on a rampage of death and destruction.

Evil Buu easily overpowers Good Buu, transforms the other Buu into chocolate, and eats him. Even though his anger is enough to make him a serious threat, his limited time in the series allowed him to be overshadowed by other Buus.

9 Fusion Buu

Dragon Ball Z – Fusion Saga

Fusion in Dragon Ball continues to be one of the most popular aspects of the entire series. Dragon Ball Super goes as far as introducing newer fused characters and even bringing Gogeta into the official canon. Fusion allows the characters to combine their powers and bodies to throw some serious damage down.

After being overwhelmed by Ultimate Gohan, Super Buu realizes that fusion might be the key to victory. Super Buu took advantage of an unsuspecting Gotenks and absorbed him. While Fusion Buu was powerful enough to defeat Gohan, this Buu form only lasted half an hour. Once that time was up, Fusion Buu reverted to Piccolo Buu.

8 Piccolo Buu

Dragon Ball Z – Fusion Saga

What makes Piccolo Buu so impactful is not his power, but rather his mind. Buu previously lacked intellect and maturity, and while strength can take any fighter far, strategy is often the key to winning. Thanks to Piccolo's knowledge, Buu outsmarted the already intelligent Gohan, as well as Goku.

Adding Piccolo to his absorption pool, which includes the defused Goten and Trunks, still makes for a powerful being despite the lack of Gotenks' fused power. While Goku believed Gohan was strong enough to defeat Piccolo Buu without the use of Potara fusion, neither Goku nor Gohan accounted for the possibility Piccolo Buu would find a way to absorb Gohan.

7 South Supreme Kai Buu

Dragon Ball Z – Kid Buu Saga

South Supreme Kai Buu was incredibly powerful, despite the fact he was only there for a short amount of time. In a short but memorable scene, fans witness Buu's original transformations when he goes up and fights against each Supreme Kai long before the events of the Buu saga.

Buu had absorbed South Supreme Kai, which is what allows him to hit such a massive amount of power in a short amount of time. South Supreme Kai was so powerful that he was able to hold his own against Kid Buu. The defeat of the South Supreme Kai all but ensured Buu's victory over the Kais, leading to the eventual mayhem that would follow in the present day.

6 Ultimate Buu

Dragon Ball Z – Fusion Saga

To the frustration of Gohan fans, their favorite Saiyan couldn't kill Buu. Piccolo Buu absorbed Gohan to become Ultimate Buu, forming what is undoubtedly the most dangerous form of Super Buu. Gohan is known for being one of the most powerful fighters in the series, so absorbing him amps up Buu's powers by a massive amount.

Ultimate Buu was seemingly Majin Buu's final form, but it was later outmatched by Vegito, Goku and Vegeta's fusion. Vegito intentionally got himself absorbed, defeating Ultimate Buu from the inside. Unfused, Goku and Vegeta freed their absorbed friends and family. The fact it took a powerful fusion to defeat him speaks volumes about Ultimate Buu's strength.

5 Super Buu

Dragon Ball Z – Fusion Saga

While most Majin Buu forms only made brief appearances, the base Super Buu stuck around for a while. Super Buu is far more intimidating than other versions, thanks to his bulk. Of course, he's still incredibly immoral. He has no qualms about killing, and thanks to his new physique, it's even easier for him to do it.

Since he is not restraining himself, Super Buu has the power of the South Supreme Kai. He takes no injury and damage from Gotenks' attacks and instead overpowers Gotenks. Super Buu was a killing machine, viciously killing and consuming most of the Saiyans' friends and family. Super Buu also killed most life on Earth without ever leaving Kami's Lookout.

4 Good Buu

Dragon Ball Z – Fusion Saga

When Good Buu first appeared, characters and viewers alike weren't very intimidated. However, his childlike personality and ability to turn anyone into chocolate made him unpredictable. After befriending Mr. Satan, Good Buu becomes an ally to the side of good and has continued to be a part of the Dragon Ball series into Dragon Ball Super.

Good Buu was the result of Buu absorbing the Grand Supreme Kai. The Grand Supreme Kai's gentle and kind personality gave birth to Good, or Innocent, Buu. During the Moro conflict, the Grand Supreme Kai revealed he can take over Buu's body at a moment's notice. This created a version of Majin Buu with the much-needed insight and wisdom to help Goku and Vegeta overcome Moro's immense power.

3 Kid Buu

Dragon Ball Z – Kid Buu Saga

Kid Buu is Buu in his purest, most evil, form. He's also the last of the evil Majin Buu forms, and perhaps the deadliest. Kid Buu may not think about his actions, but that is exactly what makes him so powerful. He's a lot like Evil Buu in that he doesn't really seem to care if he hurts himself in the process of hurting others. In the anime, Goku even mentions that his level of power is incomparable to any other Buu's.

Kid Buu managed what few villains have by destroying Earth, making him the most dangerous of all forms of Buu. While Kid Buu was ultimately defeated on the Supreme Kai's planet, it took a massive Spirit Bomb with energy from all across the universe, as well as a Dragon Ball wish, to accomplish that. Goku was so impressed with Kid Buu's abilities that his desire to fight him again led to Kid Buu's reincarnation as Uub.

2 Uub

Dragon Ball Z – Peaceful World Saga

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Buu's reincarnation, Uub, surprised viewers when they saw his power. Despite his frail and young appearance, Uub could hold his own against Goku. In the world of Dragon Ball, it is a known fact that he is the most powerful full-blooded human in the entire series. Sequel series Dragon Ball Super expands on Uub's background by revealing that Kid Buu, by virtue of absorbing gods, had god ki.

This god ki, which was separated from Good Buu after the creation of Evil Buu, was eventually passed down to Uub. This strength gave Goku the edge in finally defeating Moro, even at a very young age. Given how strong Goku has become, Uub's potential should far surpass any mortal character to date — and maybe even gods.

1 Majuub Is The Ultimate Buu Form

Dragon Ball GT – Shadow Dragon Saga

Uub and Good Buu are two pieces of a whole being, similar to Piccolo and Kami. To save the world from Baby, Good Buu offered to merge himself with Uub. Uub reluctantly accepts, resulting in Majuub. Majuub is far more powerful than Uub and even has the ability to turn people into candy.

Despite this immense power-up, Majuub accomplishes little in the now non-canon Dragon Ball GT. However, at the heart of Majuub is potential, similar to Gohan. If Dragon Ball Super ever explores Uub further and retains the Majuub form, he could change the future of Dragon Ball for decades to come.