Regeneration (再生 Sai Sei, lit. "Rebirth") is the ability to regrow certain body parts or cells that have been dismembered or destroyed and replace them with brand new cells, or simply regrouping all of their separated parts back together. Piccolo is the first one to use this, displaying it during his battle with Goku.
Types of Regeneration
All Namekians are able to use the regeneration technique. This ability is first seen during the 23rd World Martial Arts Tournament after Goku redirects Piccolo's own Chasing Bullet back at Piccolo, which severely damages Piccolo's arm. Piccolo then proceeds to tear the injured arm off, to the horror of all the spectators, and regenerates a new one.
In the Vegeta Saga, the technique is seen again after Piccolo loses another arm from Raditz's twin beams which he regenerates after Raditz is defeated. During the Frieza Saga, Nail has his arm torn off by Frieza but regenerates it, much to the surprise of Frieza; in the English dub only, after seeing Nail regenerate his arm, Frieza decides that he will make a copy of the power to regenerate pieces of his anatomy and records it on his scouter. During the fight with Cell, Piccolo has his arm drained by Cell leaving an emaciated brown stick. But Piccolo manages to distract Cell long enough to regenerate his arm back. Later on, when Imperfect Cell blasts a hole through Piccolo and throws him in the ocean, he can still recover thanks to his regeneration ability. Later still, in the Majin Buu Saga, Piccolo demonstrates that he can regenerate from any wound so long as his head is intact. Cell acquired the ability by being created in part by Piccolo's cells, absorbing that part of his Namekian makeup. On several occasions Cell regenerates from extremely severe wounds, including one which left no part of his body except for a single cell intact, implying that his regenerative nucleus exists in each one of his cells (this was not only thanks to this ability, as it a combination of Sai Sei and Frieza's ability to survive horrifically severe wounds and still live, even function). The head is where the "regenerative nucleus" (a.e. the regenerative organ) is located.
Lord Slug uses regeneration in the movie, Dragon Ball Z: Lord Slug. After transforming into a golden aura form of a Super Saiyan resembling a glorified Kaio-ken, Goku damages Lord Slug's arm. He then shocks Goku by tearing it off and regenerating a new one. Similarly, in the same movie, Piccolo rips off his own ears to avoid hearing Gohan's whistling tune (unbearable to Namekians' sensitive ears) but later uses Sai Sei to instantly grow his ears back, to everyone's amusement. This shows that Namekians can regenerate other body parts such
It is unknown if the regeneration is a basic part of all Namekians, since it may take some physical and mental training before Namekians can use it consciously. It also appears to be quite an exhausting procedure, every time after it is performed the user is breathing extremely heavily from the effort and strain, and requires absolute concentration of mind and body. It has been pointed out that regrowing limbs causes a severe temporary drain on the power level of the Namekian.
In Dragon Ball: Xenoverse, Namekian characters such as Piccolo or a Namekian Future Warrior will start regenerate health once it falls below 70%.
In Dragon Ball Xenoverse 2, Namekian characters such as Piccolo, Nail, Lord Slug, or Namekian Future Warrior will start regenerating health once it falls below 70%.
According to Daizenshuu, if a Saiyans tail is removed, it will suddenly grow back if they are in danger, indicating that they have form of regeneration limited to their tails. Goku has regrown his tail several times throughout the course of the series, the first time was during the 21st World Martial Arts Tournament in his match against Giran and another during Dragon Ball GT where, after being turned into a child by Ultimate Shenron, his tail was growing back in, but needed help pulling it out. Gohan's tail also grew back during his battle with Vegeta.
Broly's stomach regenerates the hole that was punched through it by Goku seven years ago. In video games, when he returns as a Super Saiyan 3 after his second defeat, he is shown to have regenerated the injuries caused by the Family Kamehameha and the Sun. As Broly was never shown to regenerate on-screen, it is possible he found means other than regeneration to heal his injuries while in space. His regeneration factor was also indicated as early as when he was a baby, where he managed to survive a near-fatal stab wound in his chest enough to allow himself and his father to escape Frieza's destruction of Planet Vegeta.
Akami, the main threat in the Dream 9 Toriko & One Piece & Dragon Ball Z Super Collaboration Special, is able to regenerate its tentacles when they are damaged.
The Meta-Coolers have a similar ability, though it is more mechanical in nature and which is called Auto-Repair Ability (受動修復能力 Judōshūfuku Nōryoku) in Daizenshuu 7, Rebirth in the Budokai Tenkaichi series, and Revive in Dragon Ball Z: Supersonic Warriors 2. In addition to repairing any damage inflicted on themselves, their regeneration also corrects whatever design flaw allowed the injury in the first place and incorporates the correction in every subsequent unit. It should be noted that Meta-Cooler (the first encounter) is not the "real" Cooler (he is revealed to be one of many mechanical copies of the original Cooler; these "Meta-Cooler" bodies were created by the Big Gete Star), the "real" Cooler is the still living disembodied-head of Cooler that had merged with the Big Gete Star, with Cooler's head becoming one with its core. Like Frieza, Cooler has the ability to survive virtually any wound (like being sliced in half or decapitation) and function (as seen with both Frieza and Cooler). In addition, the real Cooler demonstrated a similar ability to Rebirth during their final battle, using wires to fashion for himself a new body during his final fight with Goku.
Cell is another bio-mechanical creature with regeneration. This is because he is programmed with the cells of Piccolo and Saiyan Power obtained from his Saiyan cells. These abilities combined with Frieza's ability (obtained from Frieza's cells) to survive and function even while severely injured makes Cell's regeneration extremely potent as it allows Cell to survive, regenerate, and grow stronger so as long as at least one of his cell's survives. However, it is also implied that similar to Namekians, Cell's regeneration also results in a severe temporary drop in ki due to the stress of regenerating, although to a significantly lesser scale, as evidenced when, shortly after Cell regenerated from having most of his body being blown apart by Goku's Instant Kamehameha, Goku comments on Cell's ki decreasing in response to Cell's statement that Goku's ki had dropped from using the Instant Kamehameha. Cell can regenerate due to his Namekian cells, and thanks to Dr. Gero's gene-splicing and augmentation of his natural genetic abilities. Cell was shown to be able to take the destruction of his whole upper body at one point, and then later his entire body save a single cell, from which he was completely regrown. Due to his Saiyan cells, if Cell regenerates after a near death injury, his power will increase, which is shown when he transformed into Super Perfect Cell following the use of his self-destruction (interestingly, Cell is able to receive Saiyan Power despite his injuries being self-inflicted).
In Dragon Ball Fusions, Cell Juniors can also use this form of regeneration but presumably do not receive Zenkai and their ability is implied to be inferior to Cell's. This ability is also possessed by the Cells who are Perfect Cell's counterparts from different timelines.
Bio-Broly has a similar ability to regenerate, as seen when Krillin makes a direct hit to Broly's head with Destructo Disk, but it regenerates and reattaches to the body.
General Rilldo regenerative powers that can match (or even be higher depending on which state it is) to Meta-Cooler and Majin Buu, especially when he is in his Meta-Rilldo form. His regenerative powers are more effective in an environment where there are many metals. Baby's ability to liquefy grants him a form of regeneration similar to that of Cell, which allowed him to survive being seemingly obliterated by Goku, Trunks, and Pan on M-2. However, he is destroyed completely when Goku blasted him into the Sun. Rilldo's regenerative ability is called Metal Mending in the Dragon Ball Z Collectible Card Game.
Ghost Warrior Regeneration
Ghost Warriors are able to constantly regenerate from any attack thanks to Destron Gas. While regenerating, they turn into Destron Gas, move away, and then take their physical form back on.
Ghost Warriors Frieza, Cooler, Slug, and Turles possess the ability to regenerate in Dragon Ball Heroes.
Garlic Jr. successfully wished for immortality, and thus could not be killed under any circumstances. Any wounds he did take were healed rapidly as shown when a hole blown through his stomach regenerated in seconds with no hindrance to him whatsoever. Future Zamasu also possesses this form of regeneration after wishing for immortality using the Super Dragon Balls. Fused Zamasu also possesses this form of regeneration, though in the anime, it is lowered due to fusing with the mortal Goku Black, causing him to regenerate only the left half of his body completely, while the right half reforms as purple goo. In the manga, Infinite Zamasu has this regeneration as well. Due to his regeneration going into overdrive to try and compensate after the Potara Fusion ran out and they started to divide up while their immortality would not let them, he now possesses the greatest regeneration in the franchise, as whenever he is blown into pieces, he can reform exact copies of himself that are all equal in power to the original from each individual piece, something that not even Majin Buu can do. Using this regeneration, he was able to form an army of himself out of his atoms after Vegeta blew him to pieces. When Frieza gains immortality in his scenario in Dragon Ball Z: Supersonic Warriors, he restores his body to how it was prior to his injuries from his battle with Goku.
Majin Buu has the greatest level of regeneration in the anime (second greatest in the manga due to Infinite Zamasu), allowing him to regenerate lost appendages, holes in his body, recover from being blown to pieces, or even being blasted to vapor so long as he is not completely atomized. In his case though, his entire body is in an unstable form and each singular piece of him, even as a fine dust, is able to reform back to his original shape. Super Buu's regeneration allows him to survive and regenerate after his Revenge Death Bomber Self Destruction technique. Buu's regeneration is not Namekian in nature, since he was able to regenerate wounds long before he absorbed Piccolo. However, Buu's regeneration has its limits, as after being beaten repeatedly, he starts to exert more to regenerate, while suffering from the wounds more. In Dragon Ball Xenoverse, a Majin Future Warrior can regenerate their body after blowing themselves to pieces using the Ill Bomber Super Skill. A Majin Future Warrior in Dragon Ball Xenoverse 2 can also regenerate in this manner when they use Ill Bomber as well.
Janemba is able to heal almost instantly from the injuries Pikkon inflicted on him by insulting him. In the story of the PSP game Dragon Ball Z: Shin Budokai, when Super Janemba's physical form is completely destroyed, he is able to regenerate with a new body once enough evil energy clumps together.
Janemba and Kid Buu's EX-Fusion Janembu can also regenerate thanks to being a fusion of two beings capable of regeneration.
Rage Shenron is also shown to be able to regenerate via Electric Slime in a very similar fashion as Majin Buu. Omega Shenron also gains the ability when he absorbs the Five-Star Dragon Ball which contains Rage Shenron's abilities.
Godly ki Regeneration
Main article: Immortality Immortality granted by the Dragon Balls grants unlimited regeneration to the one who possesses it. By far the strongest form of regeneration as it makes the user virtually invulnerable and incapable of being killed. However it is not full proof as it doesn't prevent the user from being sealed. Additionally, it offers no protection from the Erase technique used by Zeno and Future Zeno which can erase even immortal beings from existence.
Due to it making the user unable to die or be destroyed under most circumstances, it is well sought after ability that has lead many to seek the Dragon Balls in hopes of obtaining it such as Vegeta, Nappa, Frieza, Garlic Jr., and Future Zamasu. However, only Garlic Jr. and Future Zamasu have ever succeeded in doing so, while Frieza has obtained immortality in some video game what-if scenarios. In Dragon Ball Xenoverse 2, while working with the Time Breakers, Lord Slug and Turles also sought to acquire immortality using the Namekian Dragon Balls, but were thwarted by their competing desires and defeated by the Time Patrol. In the manga, Fused Zamasu gains immortality from Future Zamasu, while in the anime he only possesses partial immortality due to Goku Black being mortal, thus is only semi-immortal which impairs his regenerative abilities. In the manga, Goku Black also acquires it inadvertently after Fused Zamasu's faulty de-fusion causing both fusee to become merged on the cellular level, despite Goku Black having no desire to obtain immortality. Due to their immortality, Goku Black and Future Zamasu eventually become Infinite Zamasu after being blown to pieces. However, Infinite Zamasu was erased by Future Zeno, becoming the only immortal to be erased from existence.
While Garlic Jr. was immortal, he inadvertently contributed to both his defeated when he used the Dead Zone in an attempt to defeat his mortal opponents only to be swallowed and imprisoned in the Dead Zone through the portals he created after being defeated by Gohan.
In Dragon Ball Fusions, Regeneration comes in several forms. Some characters have passive Skills that allow them to regenerate HP every turn which functions automatically. There are also Special Skills which can be used to restore HP as well though they functions manually. When a Regeneration special move is used the user is shown regenerating their arm which restores HP by a certain amount. These forms of Regeneration can be used by Namekians, Majins, Cell, Cell Juniors, Meta-Cooler, and Zamasu. Tekka can regenerate if they are a Namekian or by performing EX-Fusion with any character capable of regeneration by Special Moves and/or passive Skills. Metamoran and EX-Fusions inherit the ability to regenerate if one or both fusee can regenerate via either Skills or Special Moves.
- Special Moves
- Regeneration - The standard regeneration Special Move which allows the user to regenerate their arm to restore health.
- Super Regeneration - The second strongest regeneration Special Move which acts a stronger version of Regeneration.
- Perfect Regeneration - The strongest regeneration Special Move that is even stronger than Super Regeneration.
- Super Regeneration - The second strongest regeneration Special Move which acts a stronger version of Regeneration.
- Regeneration - The standard regeneration Skill which allows the user to automatically regenerate each turn to restore some health.
- EX Regeneration - A stronger regeneration Skill which allows the user to automatically regenerate each turn to restore a medium amount of health.
- Garlic Jr. (due to being immortal)
- Future Zamasu (due to being immortal)
- Fused Zamasu (due to retaining Future Zamasu's immortality; immortality is manga only, as Fused Zamasu is only semi-immortal in the anime which impairs his regenerative abilities)
- Most Namekians
- Meta-Cooler (Nano-regeneration – Any injury Metal Cooler might suffer is instantly detected and repaired, and whatever flaws in his design that allowed the injury are corrected)
- Ghost Warriors (regenerate thanks to Destron Gas)
- Cell/Future Cell (taken from Piccolo)
- General Rilldo
- Rage Shenron
- Syn Shenron
- Goku (in his Super Saiyan God form)
- Future Warrior (Majin and Namekian races only)
- Future Warrior 2 (Majin and Namekian races only)
- Tekka (Namekian only; Can also be acquired by Tekka by performing EX-Fusion with a fusee that can regenerate)
- 再 (Sai) - Again / twice / re-
- 生 (Sei) - Life / living / birth
- ↑ Dragon Ball Z Collectible Card Game, 2000
- ↑ 2.0 2.1 Daizenshuu 7, 1996
- ↑ Dragon Ball Z: Legendary Super Warriors, 2002
- ↑ Dragon Ball Z: Supersonic Warriors, 2004
- ↑ 5.0 5.1 Dragon Ball Fusions, 2016
- ↑ 6.0 6.1 Dragon Ball: Xenoverse, 2015
- ↑ 7.0 7.1 Dragon Ball Xenoverse 2, 2016
- ↑ Dragon Ball Z: Attack of the Saiyans, 2009