SMILEs do not have individual names like the standard Devil Fruits, and are instead referred to as "(Animal species) no SMILE". In the English subtitles, they are referred to as "(Animal species) SMILE".
SMILEs resemble the artificial Devil Fruit that Vegapunk created;[4] they are colorful fruits resembling apples that have spots of a different color on them, and those spots have another spot inside each of them.[1]
The key ingredient required to concoct the artificial fruits is SAD, which is a chemical substance created by mixing the extracted Lineage Factors of numerous animals together.[5] Only Caesar Clown possesses knowledge of how to create SAD, and as such, the production of these fake Devil Fruits requires Caesar's cooperation.[1] After Caesar had produced the SAD in his lab on Punk Hazard, it was then transferred to the SMILE Factory in Dressrosa and processed into SMILEs.[2]
The manufacturing process of the SMILE Factory involves having luminescent sunflowers on the ceiling that provide light to the ordinary fruit trees growing in the factories indoor orchard. Additionally, the SAD is poured into an indoor river. The river feeds into irrigation canals that channel the river under the trees in order to feed them the chemical, modifying the fruits that grow from them. The spots seems to be an indicator for the fruit becoming a SMILE, and while mid-growing, the bottom half of the fruit lacks the telltale spots.
Due to the Tontatta Tribe'sdwarves specializing in plants, they were forced into labor in the factory producing SMILEs. It appears that the Tontatta could only produce one viable fruit out of every ten SMILEs, and even they themselves noted the unorthodox nature of the fruit had complicated the success rate. As incentive to increase their rate of production, they were made believe that it was medication for their sick PrincessMansherry; the dwarves' gullibility led them to believe this lie.[6]
With the destruction of both the SMILE factory and SAD supply, the production of SMILEs has stopped.[7]
Attributes
A SMILE fruit is intended to grant the consumer the power of animal transformation, much like a Zoan-type Devil Fruit, by a process which involves transmission of the Lineage Factor of a real animal.[5] Like normal Devil Fruits, SMILEs render those who consume them unable to swim.[8] It has been noted that, unlike real Devil Fruits, SMILE fruits actually have a good flavor.[9]
SMILEs do appear to grant enhanced physical abilities, much like real Zoan fruits, as seen when the members of the Armored Division were able to hold down the strong, massive General Franky mech suit.[10] SMILE users can also gain certain abilities of their animal, such as Batman gaining the sharp hearing of a bat,[11]Alpacaman being able to spit his saliva with high speed and force like an alpaca,[12] and Gazelleman having the ability to run very fast like a gazelle.[13] Of course, there is the possibility that a SMILE user will possess animal abilities that go beyond their level of resilience; Gazelleman is not granted the endurance of a gazelle, meaning that running fast will make him very exhausted.[14] It is also possible for some manifested animal parts to possess abilities that are out of the norm of the actual animals, such as a lion capable of breathing fire.[15]
Even with the increased strength and animal abilities bestowed by the SMILEs, many, if not all of these artificial Devil Fruits appear to be greatly inferior in strength compared to actual Zoan fruits.
As noted by Law, SMILEs, being artificial, do have side effects.[2] Due to the faulty chemicals used to make them, only one out of every ten SMILE fruits will successfully grant Zoan-like abilities at the cost of being able to swim. The other 90% of people who consume one will not receive a power while suffering the usual consequences. On top of losing the ability to swim, they permanently become unable to express negative emotions, being forced to smile and laugh all of the time regardless of how they actually feel, even while getting hurt in battle or if someone they care about dies.[16] As opposed to real Devil Fruits, which lose their power after the first bite is taken and become ordinary disgusting fruits, the failed SMILE fruits will still maintain their side effects after being partially eaten, so anyone who eats from one after the initial consumer has already eaten part of it will also lose their ability to express any emotion other than joy.[16]
Notably, SMILE users are susceptible to the power of the Kibi Kibi no Mi, which allows the user to tame animals by feeding them the treats created via this power, meaning that if they are fed these special kibi dango, they will become obedient subordinates of the user.[17]
Differences from Natural Zoans
While normal Zoan users can fully transform into an animal, as well as being able to take on a hybrid form, SMILE users have demonstrated the ability to turn certain parts of their body into parts of the animal's body. In some cases, the animal body part corresponds to the human body part, such as Alpacaman having an alpaca head in place of his human head, or Madilloman having an armadillo shell on his back. It is also possible for the animal body parts to have non-corresponding placement, such as Sheepshead turning his hands into the horns of a ram,[18] and other Gifters turning their hands into animal heads or having an animal growing from the top of their head in place of hair.[19][20] These two circumstances are not mutually exclusive; it is possible for someone to possess animal traits in both corresponding and non-corresponding locations. An example of this is the scorpion SMILE user Daifugo, who has both multiple scorpion-like legs where he would have two human legs and a scorpion stinger at the end of his hair. However some transformations are so extreme, that it actually looks more like the human is growing out of the animal rather than the other way round, such as Fourtricks, whose transformation seems more like a human face and arms are growing out of a rooster's rear.
One potential side effect is that instead of having animal features or limbs, some users will instead have an actual animal growing out of their body, as seen with Holed'em's lion, whose head and arms are protruding from Holed'em's midsection. Animals such as these will have a mind of their own, and this can be painful or even dangerous for the user as said animal may inconvenience, resist, or even attack its own host. However, since the animal half shares the same body as its user, it will share any pain its host receives, which will keep the animal from attacking its host too often.[21]
SMILE users, who gain non-sentient animal part transformations and do not suffer a severe body alteration, such as Sheepshead's sheep horn hands and Sarahebi's snake-like neck and fangs, have the ability to activate and deactivate their transformations at will. Alternatively, users who gain sentient animal heads growing out of their body, such as Babanuki's elephant and Mizerka's gorilla, do not have such an ability and their body is permanently altered.[22] It has been indicated that users can achieve advanced control over their powers, but it is uncertain what that looks like.[23] Since some animal transformations have their own sentience, a few SMILE users may very well give them a name, even though they share the same body, examples being Holed'em and Mizerka, who have named their animal transformations Kamijiro and Gorishiro respectively.
Another difference is that while SMILE users are susceptible to the Kibi Kibi no Mi's animal-taming powers, whereas a genuine Zoan user does not fall under the same weakness.[24]
Types
SMILE users have been seen with the attributes and abilities of a large variety of animals, from mammals to reptiles to insects to crustaceans. SMILEs can also result in multiple copies of the same animal appearing among its consumers, in contrast to real Devil Fruits, of which there is only one of each in the entire world.[25][26] Of course, the animal traits can manifest in different ways, even for the same animal. For example, one person might have a snake in place of their hand while another might have a snake growing out of their navel.
Due to being produced from the Lineage Factors of real animals, SMILEs are only capable of granting normal Zoan powers; no Ancient or Mythical SMILEs exist as these animals are generally not to be found in the present day (save for a few pockets of the world in some instances). This contrasts with the artificial fruit that Vegapunk produced, as since it utilized the Lineage Factor of an actual Devil Fruit user, and a Mythical Zoan one to boot, Vegapunk was able to develop an artificial Mythical Zoan fruit. Since the source of these fruits' power comes from actual animals, multiple SMILE fruits that cause transformation into the same animal are possible,[5] and SMILEs with the traits of the same animal will have the same name.[27][28]
The following SMILE types are listed in order of appearance:
Sheep SMILE (羊のSMILE,Hitsuji no Sumairu?)[23] - Grants the user the physical characteristics of a sheep.
Sheepshead ate a Sheep SMILE that allows him to transform his hands into sheep horns.[18]
An unnamed Gifter that fell under Tama's control ate a Sheep SMILE that gave him the horns of a sheep and makes his lower body the body of a sheep.[29]
Squirrel SMILE (リスのSMILE,Risu no Sumairu?)[30] - Grants the user the physical charactistics of a squirrel.
Ginrummy ate a Squirrel SMILE that allows her cheeks to expand like a squirrel's when she eats something.[30]
Mouse SMILE (ネズミのSMILE,Nezumi no Sumairu?) - Grants the user the physical characteristics of a mouse.[31]
Mouseman ate a Mouse SMILE that gives him the ears of a mouse.[31]
An unnamed Gifter who was present at Zou ate a Mouse SMILE that gives him the ears of a mouse.[32]
Bat SMILE (コウモリのSMILE,Kōmori no Sumairu?) - Grants the user the physical characteristics of a bat.[11]
Batman ate a Bat SMILE that gives him the ears of a bat and gives his lower body the wings of a bat.[11]
An unnamed member of the Trio the Grip ate a Bat SMILE that allows him to turn his left hand and forearm into a bat.[33]
Gazelle SMILE (ガゼルのSMILE,Gazeru no Sumairu?) - Grants the user the physical characteristics of a Gazelle.[13]
Gazelleman ate a Gazelle SMILE that gives him the legs and horns of a gazelle.[13]
Lion SMILE (ライオンのSMILE,Raion no Sumairu?) - Grants the user the physical characteristics of a lion.[34]
An unnamed Gifter who serves under Who's-Who ate a Lion SMILE that gives him the head of a lion and the forelegs of a lion that are adjacent to his real arms.[35]
Horse SMILE (ウマのSMILE,Uma no Sumairu?) - Grants the user the physical characteristics of a horse.[36]
Speed ate a Horse SMILE that gives her horse ears, a horse’s smile, and makes her lower body the body of a horse.[36]
Fuga ate a Horse SMILE that gives him the legs and abdomen of a horse.[37]
Hoisassa and three unnamed Gifters who carry Kurozumi Orochi's carriage each ate a Horse SMILE that gives them horse legs.[38]
Horseman ate a Horse SMILE that gives him the appearance of a bipedal horse.[39][30]
An unnamed Gifter that fell under Tama's control ate a Horse SMILE that transforms his lower body into the body of a horse.[40]
Snake SMILE (へビのSMILE,Hebi no Sumairu?)[30] - Grants the user the physical characteristics of a snake.
An unnamed member of the Trio the Grip ate a Snake SMILE that allows him to transform his right arm into a snake.[33]
Snakeman ate a Snake SMILE that gives him a snake head coming from his abdomen where his belt is and a snake tail coming from his back giving it the appearance that the snake is going through him.[41]
Sarahebi ate a Snake SMILE that allows her to extend her neck, grow fangs, and to thin, elongate, and fork her tongue.[42]
Hippopotamus SMILE (カバのSMILE,Kaba no Sumairu?) - Grants the user the physical characteristics of a hippopotamus.[43]
Dobon ate a Hippopotamus SMILE that gives him a hippo-like snout and a hippopotamus's body growing from the backs of his legs with himself in the hippo's mouth.[43]
Alpaca SMILE (アルパカのSMILE,Arupaka no Sumairu?) - Grants the user the physical characteristics of an alpaca.[44]
Alpacaman ate an Alpaca SMILE that gives him the head and neck of an alpaca.[44]
Scorpion SMILE (サソリのSMILE,Sasori no Sumairu?) - Grants the user the physical characteristics of a scorpion.[45]
Daifugo ate a Scorpion SMILE that gives him six scorpion legs and a scorpion stinger in his hair.[44]
Scorpionlady ate a Scorpion SMILE that gives her claws coming from her waist and scorpion legs adjacent to her her real legs.[46][30]
Elephant SMILE (ゾウのSMILE,Zō no Sumairu?) - Grants the user the physical characteristics of an elephant.[47]
Babanuki ate an Elephant SMILE that gives him an elephant head coming from his belly.[44]
Monkey SMILE (猿のSMILE,Saru no Sumairu?) - Grants the user the physical characteristics of a monkey.[48]
Solitaire ate a Monkey SMILE that gives her a monkey tail and monkey limbs adjacent to her real arms.[48]
Armadillo SMILE (アルマジロのSMILE,Arumajiro no Sumairu?) - Grants the user the physical characteristics of an armadillo.[49]
Madilloman ate an Armadillo SMILE that gives him an armadillo with a giant shell coming from his back.[49][50]
Ostrich SMILE (Dacho no Sumairu?) - Grants the user the physical characteristics of an ostrich.[51]
Dachoman ate an Ostrich SMILE that gives him the long feathery neck of an ostrich.[51]
Hawk SMILE (鷹のSMILE,Taka no Sumairu?) - Grants the user the physical characteristics of an eagle.[52]
Hawkman ate a Hawk SMILE that gives him an hawk head coming from his scalp, feathers in place of facial hair, and a pair of hawk wings on his back.[53]
Swallowtail Butterfly SMILE (アゲハチョウのSMILE,Agehachō no Sumairu?) - Grants the user the physical characteristics of a butterfly.[52]
Ageha Woman ate a Swallowtail Butterfly SMILE that gives her butterfly wings on her back and antennas on her head.[53]
Peregrine Falcon SMILE (ハヤブサのSMILE,Hayabusa no Sumairu?) - Grants the user the physical characteristics of a peregrine falcon.
Koshi Falcon ate a Peregrine Falcon SMILE that gives him large falcon wings on his back.[30]
Flying Squirrel SMILE (ムササビのSMILE,Musasabi no Sumairu?) - Grants the user the physical characteristics of a flying squirrel.[54]
Bao Huang ate a Flying Squirrel SMILE that gives her the tail of a flying squirrel and allows her to glide in the air.[54]
Wasp SMILE (スズメバチのSMILE,Suzumebachi no Sumairu?)[30] - Grants the user the physical characteristics of a hornet.
Beegirl ate a Wasp SMILE that gives her an extra pair of arms and wings above her rear end.[55]
Chinese Grasshopper SMILE (ショウリョウバッタのSMILE,Shōryōbatta no Sumairu?) - Grants the user the physical characteristics of a Chinese grasshoper.
Jumper ate a Chinese Grasshopper SMILE that gives him grasshopper wings and mandibles.[30]
Gastrimargus Grasshopper SMILE (クルマバッタのSMILE,Kurumabatta no Sumairu?) - Grants the user the physical charasteristics of a Gastrimargus grasshopper.
Battaman ate a Gastrimargus Grasshopper SMILE that sharpens his fingers into claws.[30]
Phasmid SMILE (ナナフシのSMILE,Nanafushi no Sumairu?) - Grants the user the physical characteristics of a phasmid.
Wolf SMILE (狼のSMILE,Ōkami no Sumairu?)[30] - Grants the user the physical characteristics of a wolf.
Redwolf ate a Wolf SMILE that gives him a wolf's head and torso coming from his abdomen.[55]
An unnamed Gifter who was present at Zou ate a Wolf SMILE that allows him to transform his hand into a wolf's head.[19]
An unnamed Gifter that fell under Tama's control ate a Wolf SMILE that gives him the head of a wolf.[29]
Japanese Stag Beetle SMILE (ノコギリクワガタのSMILE,Nokogirikuwagata no Sumairu?)[30] - Grants the user the physical characteristics of a Japanese stag beetle.
Nokokuwa Police ate a Stag Beetle SMILE that gives him stag beetle jaws coming from his shoulder blades.[56]
Japanese Rhinoceros Beetle SMILE (カブトムシのSMILE,Kabutomushi no Sumairu?) - Grants the user the physical characteristics of a Japanese rhinoceros beetle.
Beetleman ate a Japanese Rhinoceros Beetle SMILE that gives him a rhinoceros beetle horn coming from his forehead.[56]
Praying Mantis SMILE (カマキリのSMILE,Kamakiri no Sumairu?) - Gives the user the characteristics of a praying mantis.
Kamakirigirl ate a Praying Mantis SMILE that gives her mantis claws in place of her hands.[30]
A Gifter that fell under Tama's control ate a Praying Mantis SMILE that gives them the arms of a mantis while their normal face appears in place of the mantis' face.[40]
Gorilla SMILE (ゴリラのSMILE,Gorira no Sumairu?) - Grants the user the physical characteristics of a gorilla.[27]
Briscola ate a Gorilla SMILE that makes his left arm the upper body of a gorilla.[27]
Mizerka ate a Gorilla SMILE that gives her the upper body of a gorilla coming from her arms and hips.[28]
An unnamed Gifter ate a Gorilla SMILE that gave him the arms of a gorilla.[57]
Rhino SMILE (サイのSMILE,Sai no Sumairu?)[30] - Grants the user the physical characteristics of a rhinoceros.
Saitank ate a Rhinoceros SMILE that gives him a rhinoceros in place of his legs with his torso coming out from between the rhinoceros' neck and upper back.[46]
An unnamed Gifter ate a Rhinoceros SMILE that gives him a rhinoceros head that surrounds his human jaw.[29]
Hedgehog SMILE (ハリネズミのSMILE,Harinezumi no Sumairu?)[30] - Grants the user the physical characteristics of a hedgehog.
Bisley ate a Hedgehog SMILE that gives him hedgehog quills covering his back.[46]
Caucasus Beetle SMILE (コーカサスオオカブトのSMILE,Kōkasasuōkabuto no Sumairu?) - Gives the user the characteristics of a caucasus beetle.
Caucasusman ate a Caucasus Beetle SMILE that gives an extra set of arms and three horns on his head.[30]
Giraffe SMILE (キリンのSMILE,Kirin no Sumairu?) - Grants the user the physical characteristics of a giraffe.[58]
Hamlet ate a Giraffe SMILE variant that gives him giraffe ears and horns and the neck and body of a giraffe coming from the back of his neck and the upper parts of his back.[58]
An unnamed Gifter ate a Giraffe SMILE variant that caused him to gain the head and neck of a giraffe.[59][60]
An unnamed Gifter ate a Giraffe SMILE variant that caused below the waist to turn into a giraffe's body where her waist is connected to the top part of a giraffe's neck.[55]
Chicken SMILE (ニワトリのSMILE,Niwatori no Sumairu?) - Grants the user the physical characteristics of a chicken.[58]
Fourtricks ate a Chicken SMILE that gives him a chicken coming from his back.[58]
An unnamed Gifter that fell under Tama's control ate a Chicken SMILE that forms a chicken body around his head and neck while the rest of his body serves as the chicken's legs.[29]
Rattlesnake SMILE (ガラガラヘビのSMILE,Garagarahebi no Sumairu?) - Grants the user the physical characteristics of a rattlesnake.[28]
Poker ate a Rattlesnake SMILE that makes one of his legs a rattlesnake head and the other leg a rattlesnake tail. The middle of the rattlesnake's body comes out one shoulder and goes back in the other shoulder.[28]
Python SMILE (ニシキヘビのSMILE,Nishikihebi no Sumairu?) - Gives the user the characteristics of a python.
Hognose Snake SMILE (シシバナヘビのSMILE,Shishibanahebi no Sumairu?) - Grants the user the physical characteristics of a hognose snake.
Nure-Onna ate a Hognose Snake SMILE that makes her neck like the body of a hognose snake.[61]
White Snake SMILE (白蛇のSMILE,Shirohebi no Sumairu?) - Grants the user the physical characteristics of a white snake.
Tenjo-Sagari ate a White Snake SMILE that makes her lower body a white snake tail.[61]
Pug SMILE (パグのSMILE,Pagu no Sumairu?) - Grants the user the physical characteristics of a pug.
Wanyudo ate a Pug SMILE that makes his whole body that of a pug's, except for his head.[62]
Bear SMILE(Non-Canon)≠ (クマのSMILE,Kuma no Sumairu?) - Grants the user the physical characteristics of a bear.[63]
Bearman ate a Bear SMILE that makes his whole body bear-like with his face inside the bear's mouth.[63]
An unnamed Gifter that was tamed by Tama ate a Bear SMILE that gives him the head and fur of a bear.[29]
Unnamed Types
The following have unnamed SMILE types:
Rabbit - Rabbitman ate a Rabbit SMILE that gives him rabbit ears on his shoulders, a rabbit's face on his beard, and a rabbit's tail on his back.[64]
Caiman - Caimanlady ate a Caiman SMILE that gives her the front half of a caiman coming from the backs of her lower leg.[65]
Fox - An unnamed Gifter who was present at Bakura Town ate a Fox SMILE that gives him a fox's head coming from his forehead and scalp in place of his hair.[20]
Walrus - Gives the user the physical characteristics of a walrus.
An unnamed Gifter who was present at Bakura Town ate a Walrus SMILE that gives him a walrus' head and body coming from his scalp in place of his hair.[20]
A Gifter that fell under Tama's control ate a Walrus SMILE that gives him the head and skin of a walrus.[29]
Moose - An unnamed Gifter who was present at Onigashima ate a Moose SMILE that gives him the head of a moose.[55]
Cat - A number of unnamed Gifters serving under Who's-Who each ate a Cat SMILE that gives them cat ears and cat tails.[66]
Dog - Grants the user the physical characteristics of a dog.
An unnamed Gifter ate a Dog SMILE that gives him a dog's head coming from his forehead and scalp in place of hair.[67]
An unnamed Gifter who was present at Onigashima ate a Dog SMILE that gives him a dog's head in place of his mouth.[68]
An unnamed Gifter who was present at Onigashima ate a Dog SMILE that gives him a dog's head coming from his upper torso.[69]
Panda - Grants the user the physical characteristics of a panda.
An unnamed Gifter who was present at Onigashima ate a Panda SMILE that gives him a full body of a giant panda, but while upside down. His human head is between the giant panda's hind legs.[70]
An unnamed Gifter that fell under Tama's control ate a Panda SMILE that caused a giant panda body to form around his head with the giant panda head appearing on top of his normal head.[29]
An unnamed Gifter the fell under Tama's control ate a Panda SMILE that gives him a giant panda in place of his legs with his torso coming from the top of the giant panda's head.[29]
Crocodile - Grants the user the physical characteristics of a crocodile.
An unnamed Gifter who was present at Onigashima ate a Crocodile SMILE that turns his left arm into the head and upper body of a crocodile.[71]
A Gifter that was tamed by Tama ate a Crocodile SMILE that causes a crocodile head to form around his head.[29]
A Gifter that was tamed by Tama ate a Crocodile SMILE that gives him the full body of a crocodile growing from his pelvis, replacing his legs.[40]
Zebra - An unnamed Gifter who was present at Onigashima ate a Zebra SMILE that gives him the hindquarters of a zebra coming from behind the upper part of his back.[71]
Deer - A Gifter that fell under Tama's control ate a Deer SMILE that gives him the forehead of a deer that formed above his jaw.[29]
Octopus - A Gifter that fell under Tama's control ate an Octopus SMILE that causes an octopus to grow from his head.[72]
Leopard - A Gifter that fell under Tama's control ate a Lepoard SMILE that gives him the head of a leopard.[29]
Pig - A Gifter that fell under Tama's control ate a Pig SMILE that gives him the head of a pig.[40]
Polar Bear - A Gifter that fell under Tama's control ate a Polar Bear SMILE that gives him the head and paws of a polar bear.[40]
Kangaroo - A Gifter that fell under Tama's control ate a Kangaroo SMILE that gives him a kangaroo in place of his legs with his torso coming out of the kangaroo's back.[40]
Snow Leopard - A Gifter that fell under Tama's control ate a Snow Leopard SMILE that gives her a snow leopard in place of her legs with her torso coming out of the snow leopard's back.[40]
Tiger - Tigerman ate a Tiger SMILE that gave him the ears, nose, fangs, and striped fur of a tiger.
Llama - Llamaman ate a Llama SMILE that causes a llama's neck to sprout out of the top of his head and covering his skin with fur.
(Former)‡: the character is no longer part of this group. Hovering the symbol may give further details.
(Note)*: other relevant information. Hovering the symbol gives further details.
History
Beasts Pirates
The SMILE fruits were invented sometime in the last four years by the mad scientist and 300,000,000 bounty criminal, Caesar Clown, who developed a method to create artificial Zoan-type Devil Fruits with a special chemical that he created himself, known as SAD. Caesar, working under the flag of Donquixote Doflamingo of the Seven Warlords, created SAD in an abandoned lab on the island of Punk Hazard, which was then shipped to the kingdom of Dressrosa, where Doflamingo ruled as king.
After the SMILEs were created at the factory in Dressrosa, they were monopolized by Kaidou of the Four Emperors in an effort to achieve his dream of commanding the strongest pirate crew in the entire world which consists entirely of Devil Fruit users. Kaidou fed them to his crew members in order to turn them into Gifters and has since amassed an army of over 500 artificial Devil Fruit users, some of whom are particularly strong and were promoted to the rank of Shinuchi.[1][2]
Failed SMILEs
“
The smiles of the people of Ebisu Town are but masks. Masks that can never be removed.
The members of the Beasts Pirates who ate the defective SMILEs and were then forced to always be happy became known as the Pleasures. It was later discovered that the faulty SMILEs retain their drawbacks after being partially eaten. Taking notice of this, the tyrannical shogun of Wano Country, Kurozumi Orochi, took the leftover defective fruits and put them in with the leftovers that were given to the poor citizens. Orochi's goal was to force the victims of his cruel reign to express constant joy, with the intention of maintaining a visage of happiness around the country.
It did not take long for the people of the leftovers town to figure out what the fruits were doing, but in the end, their hunger got the best of them, forcing them to live in misery and suffering and without the ability to be upset about it, no matter how terrible a tragedy they were forced to endure.[74]
Use
The Gifters use their abilities frequently during battle in order to increase their strength.[18] However, after the SMILE Factory was destroyed, the Beasts Pirates stopped receiving SMILEs and so the production of new Gifters, as well as Pleasures, has ceased.[3] As a result, all the Waiters are considered to have lost their potential usefulness to the crew.[75]
Trivia
Oda once drew how Killer would have looked like if the SMILE he ate on Orochi's orders had not been a dud. In his case, an elephant SMILE user.
The side effects of eating a defective SMILE fruit (causing the eater to become unable to express any emotion other than constant joy) may be a reference to the concept of Joker Venom, a weapon used by the DC Comics supervillain, the Joker.
Joker Venom is a typically deadly chemical weapon that causes the victim to start laughing uncontrollably while their facial muscles contort into a rictus grin similar to the Joker's own; they are literally unable to stop laughing, even to breathe, and so they eventually asphyxiate, causing them to die laughing.
Fittingly, SMILE is a chemical weapon developed by Doflamingo (whose underworld epithet is "Joker") and Caesar Clown (a character named after a clown, which the Joker is based on, and sharing a name with former Joker actor Caesar Romero.)
The SMILEs were first mentioned by Doflamingo to Disco just before he abandoned the slave trade.[76]
It was because 90% of the eaters ended up smiling and laughing for the rest of their lives that Doflamingo, Caesar, and Kaidou named the fruit SMILE, cruelly mocking their misfortune.[77]
The Gifters' ability to turn selective parts of their body into animals (and animal parts) is similar to an advanced level of control of one's Zoan Devil Fruit powers, such as Marco's control of his Phoenix Devil Fruit.
The notable difference being that the SMILE users can transform their body parts into non-corresponding animal parts, such as Sheepshead turning his hands into horns.
Some SMILE Devil Fruit users possess a fruit that has the ability of another, already existing real Devil Fruit.
The Devil Fruit used by All-Hunt Grount in the filler Marine Rookie Arc is very similar to a SMILE, being a Zoan that only affects one part of his body and cannot be dismissed. No connection has been proven or disproven between them, however.
Vegapunk considers SMILEs to be inferior to his artificial Devil Fruits, something with which Nami wholeheartedly agrees (albeit she is biased due to her hatred for Caesar).[78]
↑One Piece Manga and Anime — Vol. 74Chapter 738 (p. 4-7) and Episode 671, A member of the Donquixote Pirates lies to the dwarves about the need for SMILEs.
↑One Piece Manga and Anime — Vol. 78Chapter 779 (p. 5-6) and Episode 720, The Tontatta dwarves destroy the SMILE Factory.