List of event Pokémon distributions in Pokémon Sword and Shield
This is a reverse-chronological list of event Pokémon distributions that were given away via the various Mystery Gift functions in Pokémon Sword and Shield. A subscription to Nintendo Switch Online is not required to claim Mystery Gifts on Nintendo Switch games.
Serial "codes" are one-time use codes. "Passwords" are codes that can be used by any number of people, but are usually limited to one redemption per save file.
Events redeemed in Sword and Shield have unique characteristics unique to the game environment of these games, these events cannot be claimed by other games of the same generation. Transferability of Pokémon to other games is limited by the availability of the Pokémon in said game.
ThisShinyEternatus was distributed to players who inputted a serial code that was given away at various retailers globally on differing dates from September 16.
Codes issued in Asia (outside of Japan and Korea) that start with the letter "A" expire November 17, 2022 at 15:59 (UTC). Japanese codes that start with the letter "J" expire November 24, 2022 at 14:59 (UTC). Korean codes that start with the letter "K" expire December 31, 2022 at 14:59 (UTC). Codes issued elsewhere that start with the letter "E" or "U" expire January 1, 2023 at 8:59 (UTC).
These Pokémon were distributed to promote the Lost Origin set of the Pokémon TCG at various retailers in select western countries. If redeemed in an Asian language game (Japanese, Korean, Simplified Chinese or Traditional Chinese), these Pokémon redeemed with English language tags instead. Outside of Canada and the United States, codes for the three Pokémon could be obtained simultaneously. In Canada and the United States, the distribution was staggered with Genesect and Volcanion available on a single code card and Marshadow being distributed on a separate card later.
In Europe the codes were distributed from September 9 to 30, 2022 and expire on December 31, 2022 at 07:59 (UTC). In the Americans and Oceania, codes were distributed from varying dates between October 16 and November 12, these codes expire on January 1, 2023 at 7:59 (UTC).
ThisClefairy was distributed via serial code to players of all Generation VIII games at the Pokémon Centers in Japan from September 3 to 11, 2022 as part of the おつきみピッピ (Otsukimi Pippi) marketing campaign in commemoration of the Otsukimi festival in Japan. A pamphlet with three serial codes could be obtained during the distribution period, but in order to obtain it, the recipient must imitate the moveMetronome. The codes are single-use; one of the codes on the pamphlet is valid for Sword and Shield, the second is for Brilliant Diamond and Shining Pearl, and the last is for Legends: Arceus. The codes expired on September 30, 2022.
A bug involving Clefairy's nickname occurs if the serial code is redeemed on a Korean language game. Clefairy's origin language will be set to Japanese, but it is set to have no nickname, causing the game to assign it Clefairy's species name in Korean. Since its nickname contains characters not present in the font used for Japanese text, Clefairy's nickname will display as "??" when redeemed in this language.
Due to a printing issue, the code cards only had the randomised 12 digit serial code and omitted the 4 character prefix. For the first Sword and Shield code the prefix J256 should be used before inputting the remaining 12 character code.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Japanese in origin, regardless of the language of the game.
Victory Victini
This Pokémon was distributed via Password from August 18 to 22, 2022 at 23:59 (UTC) in commemoration of the 2022 Pokémon World Championships in London, UK. The password was revealed on its official live stream. This Victini has 31 IVs as well as 80 EVs in every stat. There is a forced space at the end of the OT name when this Pokémon is redeemed in either Simplified or Traditional Chinese.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is set to the same language as the game that received it.
2022 Pokémon World Championships Sinistea
This Pokémon was distributed from August 18 to 21, 2022 at the 2022 Pokémon World Championships at ExCel London in the United Kingdom. It knows the event exclusive move Celebrate and comes in its Antique Form.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is set to the same language as the game that received it.
Ash's Pokémon
In addition to Ash's World Cup Pikachu that was given out for the Pokémon 25th anniversary film fest, the rest of Ash's team was made available through Pokémon Journeys: The Series broadcasts in Japan. These Pokémon were redeemable via a password which was revealed during the Japanese TV broadcasts. The Pokémon have differing redemption windows of two weeks each.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Japanese in origin, regardless of the language of the game.
25th Anniversary Film Fest Pokémon
These Pokémon were distributed via serial code to players of Pokémon Sword and Shield at the Japanese screenings of Pokémon Heroes: Latios & Latias from August 11, 2022, Jirachi: Wish Maker from August 19, 2022, or The Rise of Darkrai from August 26, 2022 in Japanese movie theatres. These screenings were held in commemoration of Pokémon's 25th anniversary. These codes were distributed until September 8, 2022 and all expired on September 30, 2022. All of these serial codes can be redeemed multiple times on the same save file, provided the player has multiple codes.
This Pokémon can be redeemed multiple times per save file by using differing valid serial codes.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Japanese in origin, regardless of the language of the game.
Eric Rios's East Sea Gastrodon
This Pokémon was distributed via password from June 24 to 27, 2022 in commemoration of the 2022 North American Video Game Championships, based on the Gastrodon used by Eric Rios in the 2022 European Video Game Championships. The password was revealed on its official live stream.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Spanish in origin, regardless of the language of the game.
Jirawiwat Thitasiri's Clefairy
This Pokémon was distributed via password from June 18 until June 19, 2022 at 15:59 (UTC) in commemoration of the Pokémon Championships 2021-22 Singapore, based on the ShinyClefairy used by Jirawiwat Thitasiri in the Pokémon Asia Players Cup 2021. The password was revealed on its official Pokémon Singapore Facebook page on June 18, 2022 at 5:00 (UTC) though it had already been guessed several hours earlier.
A bug involving Clefairy's nickname occurs if the serial code is redeemed on a Korean language game. Clefairy's origin language is set to English, but it is set to have no nickname, causing the game to assign it Clefairy's species name in Korean. Since its nickname contains characters not present in the font used for English text, Clefairy's nickname will display as "??" when redeemed in this language.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is English in origin, regardless of the language of the game.
Kohei Fujida's Sableye
This Pokémon was distributed via password from June 11 to 12, 2022 in commemoration of the 2022 Pokémon Japan Championships, based on the Sableye used by Kohei Fujida in the 2021 Pokémon Japan Championships. The password was revealed on its official live stream.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Japanese in origin, regardless of the language of the game.
Wonseok Jung's Grimmsnarl
This Pokémon was distributed via password from June 11 to 12, 2022 in commemoration of the 2022 Korean Pokémon Trainers Cup, based on the Grimmsnarl used by Wonseok Jung in the 2021 Korean Pokémon Trainers Cup. The password was revealed on its official live stream.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Korean in origin, regardless of the language of the game.
Marco Hemantha Kaludura Silva's Dracovish
This Pokémon was distributed via password from April 22 to 24, 2022 in commemoration of the 2022 European Video Game Championships, based on the Dracovish used by Marco Hemantha Kaludura Silva in the 2020 Oceania International Championships. The password was revealed on its official live stream. The stats of this Dracovish differ from the Dracovish used by Marco, which had 252 EVs in Speed and zero in Special Defense.[1]
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Italian in origin, regardless of the language of the game.
2022 International Challenge Shiny Galarian legendary birds
These ShinyGalarian Form of legendary birds Pokémon are set to be distributed to players who participate in a series of battle stadium tournaments. Players need to complete a minimum of 3 battles within a given tournament to receive the respective participation reward. The trainer names of these Pokémon reference the location that they patrol in the wild: Zapdos in the Wild Area, Moltres in the Isle of Armor and Articuno in the Crown Tundra.
Players who participate at "2022 International Challenge February" can receive Shiny GalarianArticuno.
The signup period ran from February 3 to 17, 2022 (UTC)
The tournament ran from February 18–20, 2022 (UTC)
Articuno claimable from February 21, 2022 (UTC)
Players who participate at "2022 International Challenge March" can receive Shiny GalarianZapdos.
The signup period ran from February 24 to March 10, 2022 (UTC)
The tournament ran from March 11–13, 2022 (UTC)
Zapdos claimable from March 14, 2022 (UTC)
Players who participate at "2022 International Challenge April" can receive Shiny GalarianMoltres.
The signup period ran from March 31 to April 14, 2022 (UTC)
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is set to the same language as the game that received it.
Pokémon Center Birthday Happiny
This Happiny is being distributed via serial code to players of all Generation VIII games at Pokémon Center stores across Japan and Singapore if they visit during the month of their birthday, but only if they provide proof of their date of birth and Nintendo Switch. The codes are being distributed from November 1, 2021 to October 31, 2022. Players can use these codes in Pokémon Sword, Shield, Brilliant Diamond, Shining Pearl, or Legends: Arceus; the codes are single use, but valid in any of the aforementioned games. This Pokémon has Japanese tags unless redeemed in an English game.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is either English or Japanese in origin, depending on the language of the game.
Leonardo Bonanomi's Gigantamax Charizard
This Pokémon was distributed via password from October 31 to November 3, 2021 in commemoration of the Global Exhibition tournament, based on the Charizard used by Leonardo Bonanomi. The password was revealed on its official live stream.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Italian in origin, regardless of the language of the game.
Shiny legendary heroes
Promotional Artwork of ShinyZamazenta by Hitoshi Ariga[2]Promotional Artwork of ShinyZacian by Hitoshi Ariga[2]Japanese promo for Shiny legendary heroesKorean promo for Shiny legendary heroesNorth American promo for Shiny legendary heroes
These Shiny Pokémon were distributed to players of various countries who inserted a serial code that was given away at various locations. These Pokémon were distributed between October 22, 2021 and February 22, 2022 with specific dates varying by region. Owing to the server-side Wonder Cards being accidentally repealed, it was not possible to redeem these Pokémon for four days between February 3 and 7, 2022.
In Western language games, Zacian has the Original Trainer of Lancer, whereas Zamazenta has the Original Trainer of Arthur. This is a reference to Arthurian Legends upon which both Pokémon are derived from, Namely King Arthur and Sir Lancelot. In Asian Language games, the original trainer is a localised form of "Galar".
Outside of South Korea, Players of Pokémon Sword can receive Shiny Zamazenta, while players of Pokémon Shield can receive Shiny Zacian. Codes obtained from the South Korean distribution can be redeemed in either game. It is possible to redeem both Zacian and Zamazenta on the same game. Each Pokémon is only obtainable once per save file regardless of code origin.
In Asia (Outside of South Korea), the codes were distributed from October 22 to November 18, 2021. The codes could be redeemed until November 25, 2021.
In South Korea, the codes were given away by pre-ordering Pokémon Brilliant Diamond and Shining Pearl, or the Double Pack of Brilliant Diamond and Shining Pearl. The codes could be redeemed from November 19 to December 31, 2021.
In the United States, Shiny Zacian was distributed from October 22 to November 11. In Canada, it was distributed from October 22 to November 4. Meanwhile, Shiny Zamazenta was distributed from November 12 to 26 in the United States, and November 5 to 18 in Canada. In Australia and New Zealand, both Pokémon were distributed from November 19. The codes could be redeemed until January 31, 2022.
In Europe, the codes were distributed from October 22 to November 18, 2021. The codes were advertised to expire on December 31, 2021, February 12, 2022 or February 22, 2022 depending on the country. Despite the difference in advertised expiry dates, all European codes used the same code prefixes regardless of the distributing country, and as such were made valid until February 22, 2022, even if the advertised expiry date was earlier.
These Pokémon were distributed to players who entered a serial code included in the Pokémon Trainer Club newsletter on October 7, 2021. Players needed to sign up for the Pokémon Trainer Club newsletter and opt-in to email marketing by September 25, 2021. They included a ShinyCelebi and a Dada Zarude. The codes expired on December 31, 2021.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is set to the same language as the game that received it.
Korean Jungle Pokémon
ThesePokémon were distributed to players who preordered tickets to the twenty-third movie, Secrets of the Jungle. They included a ShinyCelebi, a regular Zarude and a Dada Zarude. Multiple redemptions of these Pokémon are allowed on a single game, provided the player had preordered multiple tickets and consequently had multiple serial codes.
This Pokémon can be redeemed multiple times per save file by using differing valid serial codes.
Date received is the date on the system when the gift is redeemed.
This Pokémon is set to the same language as the game that received it.
Jeong Sang-yoon's Porygon-Z
This Pokémon was distributed via password from August 21 to 22, 2021 in commemoration of the Korean Pokémon Trainers Cup 2021 tournament, based on the Porygon-Z used by Jeong Sang-yoon. The password was revealed on its official live stream.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Korean in origin, regardless of the language of the game.
Wolfe Glick's Gigantamax Coalossal
This Pokémon was distributed via password from August 14 to 16, 2021 in commemoration of the Players Cup Invitational tournament, based on the Coalossal used by Wolfe Glick. The password was revealed on its official live stream.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is English in origin, regardless of the language of the game.
Kohei Sakurai's Torkoal
This Pokémon was distributed via password from July 18 to 19, 2021 in commemoration of the Japan National Championships 2021 tournament, based on the Torkoal used by Kohei Sakurai in the Japan National Championships 2020 Masters Division. The password was revealed on its official live stream.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is set to the same language as the game that received it.
Pokémon Adventure 25 Pokémon
These Pokémon were distributed to players in South Korea during the "Pokémon Adventure, Catch the Mythical Pokémon!" (Korean: 포켓몬 어드벤처, 환상의 포켓몬을 잡아라!) campaign that ran from April 26 to September 30, 2021. Players could earn points by buying participating Pokémon merchandise, which could then be used to exchange for serial codes on the official website. This was similar to the "Mythical Pokémon Get Challenge" that had previously run in Japan in 2020.
The number of points entered determined what type of serial code was received; one point resulted in a Genesect code, five resulted in ten Dynite Ores code, ten resulted in a Poké Ball Set 1 (Fast Ball, Level Ball, and Love Ball) code, 13 resulted in a Volcanion code, 16 resulted in ten Dynite Ores code, 20 resulted in a Poké Ball Set 2 (Moon Ball, Heavy Ball, Friend Ball, and Lure Ball) code, 23 resulted in a Marshadow code, 27 resulted in a Poké Ball Set 3 (Safari Ball and Sport Ball) code, and 30 points resulted in a Master Ball code.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is set to the same language as the game that received it.
Rock Star Shiny Toxtricity
Australian code card
This Shiny Pokémon was distributed to promote the Shining Fates set of the Pokémon TCG, a set that features Shiny reprints of old Sword & Shield Series cards, two of which feature Shiny AmpedForm Toxtricity. All codes expired on June 30, 2021.
ThisPikachu was released during the official Pokémon stream of the first sunrise of the year 2021, as seen from the International Space Station. Its OT is named after the Japanese ISS Module KIBO. It was available from December 31, 2020 to January 15, 2021.
This Pokémon can be redeemed multiple times per save file by using differing valid serial codes.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Japanese in origin, regardless of the language of the game.
Pokémon Get Challenge 2020 Pokémon
Pokémon Scrap 2020 logoPokémon Scrap 2020 artwork
These Pokémon were distributed to players who entered the codes from the "Mythical Pokémon Get Challenge" (Japanese: 幻のポケモンゲットチャレンジ) onto the official site in exchange for a serial code. Pokémon Scraps could be found in participating types of Pokémon merchandise starting on November 20, 2020.
The number of codes entered determined what type of serial code was received:
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Japanese in origin, regardless of the language of the game.
International Jungle Zarude
North America Serial code image from newsletter
This Pokémon was distributed to players who inserted a serial code that was either given away at various locations in select countries or the Pokémon Trainer Club newsletter. These codes all expired on March 31, 2021.
These Milcery were distributed via serial code to players of Pokémon Sword and Shield at the Pokémon Center store located in the fourth floor of the Jewel mall at Changi Airport from November 6, 2020 until October 31, 2021 if they visited during the month of their birthday, but only if they provided proof of their date of birth and Nintendo Switch.
As both Pokémon share the same Wonder Card ID, only one of the two Milcery (either holding a Ribbon Sweet or a Star Sweet) could be redeemed on a single save file.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is English in origin, regardless of the language of the game.
Japan Pokémon Center Birthday Milcery
These Milcery were distributed via serial code to players of Pokémon Sword and Shield at Pokémon Center stores and Pokémon Stores in Japan from November 1, 2020 until October 31, 2021, if they visited during the month of their birthday, but only if they provided proof of their date of birth and Nintendo Switch.
As both Pokémon share the same Wonder Card ID, only one of the two Milcery (either holding a Ribbon Sweet or a Star Sweet) could be redeemed on a single save file.
Before November 6, 2020, the Wonder Card did not set a nickname for Milcery, causing a bug if the serial code is redeemed on a Korean, Traditional Chinese, or Simplified Chinese language game. Milcery's origin language would be set to Japanese, but since it had no nickname, the game would assign it Milcery's species name in Korean/Traditional Chinese/Simplified Chinese. Since its nickname contains characters not present in the font used for Japanese text, Milcery's nickname would display as "???" on the save file. This was fixed by replacing the Wonder Card with another version with the same ID, that directly set Milcery's nickname to マホミル (Milcery's species name in Japanese).
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Japanese in origin, regardless of the language of the game.
Ash's Pikachu in a cap
All Pikachu in a cap were distributed via passwords through the official Pokémon website. All of these passwords expired on November 30, 2020, at 6:59 a.m. PST. Unlike previous distributions, these iterations of Ash's Pikachu all share the same moveset and can learn Volt Tackle from the Move Reminder.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is set to the same language as the game that received it.
Ash's Charizard
ThisCharizard was distributed in South Korea as a bonus for attendees of the Korean dub screening of Mewtwo Strikes Back—Evolution on September 30, 2020. The serial code was redeemable until November 30, 2020.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Korean in origin, regardless of the language of the game.
Pokémon Players Cup Porygon2
ThisPorygon2 was distributed via password during the live stream of the English-language Pokémon Players Cup, during the final rounds of the Pokémon Sword and Shield competition starting at 11:00 a.m. PDT on August 22 and 23, 2020. This "battle-ready" Porygon2 is designed to take advantage of Trick Room. The password expired on August 31, 2020.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is set to the same language as the game that received it.
Hirofumi Kimura's East Sea Gastrodon
ThisEast SeaGastrodon was distributed via password during the live stream of the Japanese 2020 Championship on Niconico and YouTube on August 22, 2020. It is based on the Gastrodon used by Hirofumi Kimura in the 2019 Pokémon Japan Championships. Starting at 10:00 AM JST. This Gastrodon is based on the Gastrodon used by the Japanese Regional Masters Division Champion in 2019.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Korean in origin, regardless of the language of the game.
Jungle Pokémon
Promotional artwork of Zarude associated with the event
ThesePokémon were distributed to players who preordered tickets to the twenty-third movie, Secrets of the Jungle. They included a ShinyCelebi and a Zarude, both Pokémon that play important roles in the movie. Celebi's distribution was originally due to begin on April 17, 2020 and Zarude's on June 15, 2020; due to the delay of the movie's release, both distributions instead began on August 7 and were redeemable until March 31, 2021. Multiple redemptions of these Pokémon are allowed on a single game, provided the player had preordered multiple tickets and consequently had multiple serial codes.
Additionally, the Dada Zarude was distributed from December 25, 2020 to March 31, 2021 to players who watched the movie in Japanese movie theatres.
The Shiny Celebi and Dada Zarude were re-released in Taiwan between December 10, 2021 and March 31, 2022 to promote the release of the movie in this market.
This Pokémon can be redeemed multiple times per save file by using differing valid serial codes.
Date received is the date on the system when the gift is redeemed.
This Pokémon is set to the same language as the game that received it.
Hidden Ability Galarian Pokémon
TheseGalarian Pokémon with their Hidden Abilities were distributed in the weeks before the release of the first part of the Pokémon Sword and Shield Expansion Pass; The Isle of Armor. Each Pokémon distribution was also complemented with a separate item distribution. Each distribution lasted exactly a week, with the event changing Fridays at 00:00 PM UTC, except for the Meowth, which ended the day before the release of the expansion.
A Galarian Meowth with its Hidden Ability, Unnerve, was distributed from June 12 to 16, 2020. Players could also receive 50 Big Nuggets and 100 Exp. Candies L.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is set to the same language as the game that received it.
Singapore Pokémon Center Birthday Pikachu & Eevee
These Pikachu and Eevee were distributed via serial code to players of Pokémon Sword and Shield at Pokémon Center in Singapore from March 7, 2020 to November 5, 2020, if they visited during the month of their birthday, but only if they provided proof of their date of birth and Nintendo Switch.
As both Pokémon share the same Wonder Card ID, players could only redeem one of the two Pokémon (Either Pikachu or Eevee) on a single save file.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is English in origin, regardless of the language of the game.
Winter 2020 World Hobby Fair Gigantamax Pokémon
TheseGigantamax FactorLapras and Coalossal were given to players who challenged Gigantamax Lapras and Coalossal at a "Max Raid Battle Experience Corner" attraction at the 2020 Winter Next Generation World Hobby Fair. Both codes were redeemable until February 29, 2020.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is set to the same language as the game that received it.
Jump Festa '20 Gigantamax Snorlax
This Gigantamax FactorSnorlax was given to players who attended Jump Festa '20 between December 21 and 22, 2019. The serial code was redeemable until January 31, 2020.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is set to the same language as the game that received it.
Japan Pokémon Center Birthday Pikachu & Eevee
These Pikachu and Eevee were distributed via serial code to players of Pokémon Sword and Shield at Pokémon Center stores and Pokémon Stores in Japan from November 15, 2019 to October 31, 2020, if they visited during the month of their birthday, but only if they provided proof of their date of birth and Nintendo Switch.
As both Pokémon share the same Wonder Card ID, players could only redeem one of the two Pokémon (either Pikachu or Eevee) on a single save file.
This Pokémon may only be redeemed once per save file.
Date received is the date on the system when the gift is redeemed.
This Pokémon is Japanese in origin, regardless of the language of the game.
Poké Ball Plus Mew
Initially released with Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, the Poké Ball Plus comes programmed with an internal serial code to redeem this Mew that is compatible with Pokémon Sword and Shield. Despite being marketed as the Poké Ball Plus "containing" Mew, the serial code aspect means that to claim Mew, the player must connect to the Internet through Mystery Gift.
The serial code aspect also means that it is impossible for a single manufactured Poké Ball Plus to redeem more than one Mew, even if the Poké Ball Plus is later resold. Players that purchased multiple Poké Ball Plus units can redeem one Mew for each.