A parasite who desires nothing more than to see the destruction of all Saiyans
Seemingly created as a "last resort" by the demented Machine Mutant Dr. Myuu, Baby is a parasite whose purpose for living is to see through the annihilation of the Saiyan race and domination of the universe in the name of the Tuffles . However, as his name implies, Baby is highly immature and is prone to fits of rage and panic, as well as not taking his battles seriously. It is also implied that 'Baby' was not his original name, or at least that this is not what he was intended to be dubbed, as Baby does not initially recognize the title and before long begins to dislike it.
Baby is first confronted by Goku, Pan, and Trunks while they are on the planet M-2, home to Dr. Myuu. During the encounter, Baby is still confined to a tank of liquid, where he is completing his regeneration. Although Trunks seemingly stops the process and dooms the parasite, Baby's inner-rage rage at the mention of a "Saiyan" causes him to awaken forcefully. Still, Baby proves to be no match for the three Saiyans, and so he makes his escape by stowing himself away within Dr. Myuu's body.
Bursting his way out of Myuu's body, Baby berates Dr. Myuu for forgetting who the "true master" is, revealing that it was he who created Dr. Myuu to revive him and give him the ability to create the other Machine Mutants. What causes Baby to rely on Dr. Myuu for his regeneration is never explicitly revealed, but there are several sequences during the Baby Saga that are believed to provide some hints. Baby finds a Black Star Dragon Ball inside Dr. Myuu's brain, and plans a trap for Goku, Pan and Trunks after failing to stop them from departing M-2 inside General Rilldo's body. Baby then slaughters an entire space crew and takes the body of a young alien boy and hides the Dragon Ball in order to trap the Saiyans. The plan works, and Baby, as the child, is taken by the trio to a hospital on another planet, where he escapes the boy's body and enters that of a doctor. Seeing his chance, Baby catches Trunks alone and enters his body through a cut in Trunks' shoulder. Unfortunately for Baby, Trunks proves to have enough willpower to withstand the parasite, and Baby is forced to break out of his body. Being no match for the might of Goku, Pan and Trunks, Baby flees the planet and makes his way to Earth, seeking the remaining Saiyans.
Upon arriving on Earth, Baby begins his rampage first by seizing the body of Goten. Baby Goten challenges Gohan to a battle during which he switches possession of bodies in favor of Gohan's, but not before leaving an egg implanted inside of Goten, rendering him under Baby's control. Goten and Baby Gohan locate the next Saiyan, Vegeta , which ensues in an even duel between the latter two. This is until with the help of an ambush by Goten, one of Baby Gohan's attacks pierces Vegeta's skin, and allows Baby to commandeer Vegeta's body, gaining control of a far superior host.
Having brought the population of Earth under his control, Baby Vegeta is stunned by an encounter with Goku, who has recently returned to Earth. Baby Vegeta reveals to Goku that he has Earth placed under his control, unaware that Pan, Majin Buu, and Mr. Satan are free from his possession as well. Trunks, who appeared not to suffer any repercussions of Baby's attempt to control him, appears to have been captured after all, as like with Goten, Baby implanted his seed within Trunks in an effort to overtake him at a later time. Goku then challenges Baby Vegeta to a combat that is evenly matched. Baby Vegeta gains the upper-hand however when Goku reverts back to normal, and when the hypnotized Saiyans lend him enough energy to assume his final transformation. During this match, Goku discovers Baby's greatest weakness: his temper. Though he is clearly losing, Goku taunts and goads him, with Baby falling for every taunt, unable to shrug off Goku's remarks. With his new power, Baby Vegeta easily topples Goku, before unleashing a presumably fatal Revenge Death Ball upon Goku, who is nowhere to be seen following the explosion that ensues.
Baby decides to carry out the final phase of his plan: to use the Black Star Dragon Balls to wish for the return of the Tuffle homeplanet , which Baby re-dubs "Planet Tuffle", and to relocate the Earthlings to the rebirthed planet via spaceships. When his progress is intervened by Pan, Majin Buu and Hercule, Baby Vegeta orders Gohan and Videl to execute Pan. Fortunately, the young Saiyan is rescued at the last minute by Uub , Goku's esteemed pupil.
Uub and Baby Vegeta then engage one another in mortal combat, and seem to be evenly matched. Gohan, Goten and Trunks come to assist Baby Vegeta, but there aid is revealed to be unnecessary, as Baby Vegeta claims to have been merely toying with Uub, before blasting them aside for their lack of faith. Baby Vegeta then fights Uub with his full potential, and moves in for the kill by firing a Revenge Death Ball at the young warrior. However, unknown to Baby Vegeta who receives a report from Bulma and leaves for Planet Vegeta , Uub survives the attack thanks to the timely intervention of Majin Buu.
To his shock, Baby Vegeta is confronted once again by Uub, the latter having fused with Majin Buu since their last encounter and been rechristened Majuub. Baby Vegeta and Majuub's conflict is once again evenly matched, until Majuub demonstrates one of his abilities inherited by the fusion , the Chocolate Beam , against a number of hypnotized bystanders, transforming them into chocolate. Baby Vegeta is on the verge of defeat when Majuub fires a Chocolate Kamehameha at him. Baby Vegeta however, declares that he has had "enough playing," and further exerts himself, deflecting the energy wave back at Majuub, resulting in the fighter being reduced to a harmless piece of chocolate which Baby Vegeta proceeds to eat.
Majuub's defeat signals the return of Goku, who it was previously believed had been decimated earlier by Baby Vegeta's Revenge Death Ball. Having regrown his tail in his absence, Goku engages Baby Vegeta in combat, but is still overpowered by the possessed Saiyan. Baby Vegeta moves in for the final blow when Goku undergoes a mysterious transformation by staring at the Earth; Baby Vegeta witnesses Goku transform into a Golden Great Ape . Free of reserve, Goku proceeds to rampage the surface of the planet, with Baby Vegeta barely able to dodge Goku's blows.
Eventually the raging Goku is confronted by Pan, who calms his senses and signifies his ultimate transformation, Super Saiyan 4 . Baby Vegeta and Goku resume their fight, where Baby Vegeta instantly realizes that his inferiority to a Super Saiyan 4. In a desperate move, Bulma targets Baby Vegeta with a Blutz Wave Generator , transforming him into a Golden Great Ape as he has previously observed with Goku. Although Baby Vegeta's power has increased beyond that of his adversary, he goes into a blind rage, destroying much of his own city. Goku attempts to sway the uncontrollable monster to an uninhabited area, until Baby Vegeta curiously blindsides him with a ki blast, something he would be incapable of tactically doing if he were out of his mind.
Baby Vegeta confesses that he is in complete control of his senses, and explains that the destruction he previously caused was again an act of "playing". He goes on to remind Goku that while his host Vegeta has become a Golden Great Ape, Baby remains is the dominant identity in control (this dialogue was removed in the Funimation dub of this particular episode, replacing it with an explanation of why Baby Vegeta's mouth does not move when he talks). After swatting Goku away, Baby decides to further demonstrate his superior power by blasting the Saiyan with a series of devastating energy waves. Because Goku manages to avoid these, Baby changes tactics, targeting Goku's family. Finally, Baby Vegeta and Goku come to blows, leading the parasite to spite Goku further by blasting the Earth with an uncharged Super Galick Gun , which destroys much of Satan City in an explosion visible from Planet Tuffle. In retaliation, Goku blasts Baby Vegeta with a 10x Kamehameha , which appears to have no effect.
While the force hasn't affected Baby Vegeta, its potency is enough to paralyze the Golden Great Ape for a few moments. Eventually, Baby Vegeta and Goku both land knockout punches on each other and collapse in exhaustion. This prompts Bulma, still possessed by Baby, to use the Blutz Wave Generator to replenish Baby Vegeta's energy. However, these waves also reach Goku and are enough to revitalize him. Fully refreshed however, Baby Vegeta's power is far beyond Goku's reach. Making matters worse, Baby Vegeta sets his targets toward Goku's friends and family, who have joined the battle since being freed from Baby's control. Because Baby is aware of the power Goku has lost over the course of the struggle, Goku's taunting and psychological tactics prove helpless, and Baby ignores him as he attacks the others.
Deciding to bring the circumstances to an end with a heavily charged Super Galick Gun , Baby prepares to wipe everyone out when Majuub, revealed to still be active inside Vegeta's body, powers up within and attacks his innards, causing him great pain and halting his lethal blast. Baby Vegeta is frustrated at being relatively powerless against an attacker that is inside of him, driving him to regurgitate Majuub. Baby Vegeta notices that during this commotion, Trunks, Goten, Gohan and Pan have been lending their energy to Goku, which enrages Baby. To stop them, Baby Vegeta launches a Super Galick Gun at the five Saiyans. Although Pan, Trunks, Gohan and Goten are knocked out, Goku emerges from the explosion unharmed, renewed and prepared to resume the battle against the Tuffle parasite.
Having been weakened by Majuub's earlier attack, Baby Vegeta's power is now equal to Goku's. However, due to his complete lack of focus and ever-increasing rage, Baby Vegeta finds himself unable to get the better of the Super Saiyan 4, who takes this opportunity to slice off Vegeta's tail, reverting him to a battered Super Baby Vegeta. In the Spanish dub, Baby remarks that Vegeta's shell transforming into a Golden Great Ape caused Baby to undergo a change as well, as in his adult form Baby would not have been able to stay within Vegeta's body had it returned to normal size.
In a last resort effort to survive, Baby leaves Vegeta's body and attempts to escape from Planet Tuffle in his spaceship. To his shock, Baby's last sight is that of Goku firing a 10x Kamehameha towards his craft, hurdling him into the Sun. After Baby's demise, the Sacred Water at Kami's Lookout is used to cure all of Baby's victims.
Initially, Baby is single-minded in reviving the Tuffle race and exterminating the Saiyans, and over time it is shown that he has extreme cunning enough to dominate over the Z Fighters , possessing Vegeta and successfully restoring the Tuffles' homeplanet. However, Baby is also incredibly childish and immature; he is very prone to taunting, and flies into a rage if he is teased enough. Ironically, despite seeing the Saiyans as a barbaric race, he arguably finds more enjoyment in battle than they do; upon becoming a Golden Great Ape, Baby pretends as though he is in a mindless rampage (a trait common among all Great Apes and Golden Great Apes), and massacres countless followers as a means of testing out his abilities. He has a very intelligent, and "extremely egotistical and selfish" personality. Later, after he received energy from his followers, becoming Super Baby Vegeta, his cruelty became more pronounced, and he stated that each and every living being should be considered his slaves. Due to the Tuffle King's DNA within Baby, he is also tremendously prideful, and he prefers to fight one-on-one. Being the sole survivor of the Tuffle race, who were all but exterminated by the Saiyans, he bares a deep hatred of the Saiyans.
Baby can liquefy himself in order to enters through a cut or scrape in his target's skin. As he matures, his liquidation ability grows more advanced. Although he has some strength of his own, Baby's combat abilities are best suited to exploiting the full potential of a host body. It appears that when he has chosen a permanent host, he begins to alter the host's appearance to mirror his own (as evidenced by the appearance of Super Baby Vegeta). As he gains more power through possession, Baby's own physical body appears to mature as well. In his first appearance, Baby is a skinless, mechanical infant. When he appears before Goten, he is blue-skinned and appears to be somewhat of a teenager, with facial markings and his standard outfit. Finally, when he escapes Vegeta's body, Baby's shape has reached adulthood. Baby's state of puberty is apparently met upon his first transformation as Baby Vegeta, as evidenced in the Japanese dub by his voice becoming raspier.
After possessing a host, Baby combines their power with his own. He decides whether to plant an egg inside the victim before leaving them, or to completely seize their energy. The eggs he inserts in potential victims eventually hatch, releasing a substance that alters their mind into becoming willful servants to the parasite. He also gains the ability to assimilate the techniques of those who he has possessed, although under his usage they emit a pink aura despite the color they emit when used by their untampered host.
Potential victims appear to be the most vulnerable when they are at the pinnacle of their power, as Baby waited for Goten, Gohan and Vegeta to ascend to their Super Saiyan forms before possessing them. During his fight with Vegeta, Baby Gohan and the possessed Goten trap Vegeta in a ball created by the two flying around him at high speeds. While in this ball, Baby seems able to create ghost-like images of Gohan and Goten, both speaking with his voice.
Baby, as the Golden Great Ape Baby Vegeta, is one of the leading superpowers in the Dragon Ball franchise. During the final battle, he greatly overpowers Goku in his Super Saiyan 4 transformation, and has to be fought using psychological tactics, rather than brute force.He was also able to control the Great Ape form as it was Vegeta's body, not his, that transformed. His wild rage upon transformation was simply a ruse to trick Goku, even at the cost of some of his own people. At a fraction of his power his uncharged Super Galick Gun is able to do enough damage to the surface of the Earth to be visible from Planet Tuffle, and as Elder Kai fears, could destroy the planet if met with one of his charged attacks. In addition, the expulsion of his aura as Baby Vegeta powers up levels much of his city; even his screams are capable of considerable damage.