Population of Legendary and Mythical Pokémon

The population of Legendary and Mythical Pokémon refers to how many individuals of each Legendary or Mythical Pokémon species are known to live in the Pokémon world.

In the core series games

The Legendary Pokémon can usually be obtained at most once per save file, and the Mythical Pokémon are usually available once per event, although it is still possible to obtain multiple Pokémon from trades between between games. However, in some cases, there are multiple Legendary or Mythical Pokémon of the same species either found or mentioned in-game, such as in Pokédex entries or in character dialogue, even though they may not be available to the player.

Sometimes, multiple Pokémon seem to be present by comparing multiple games in the timeline. In some cases, the same Pokémon species may also appear at a lower level in later games according to the timeline, which may imply that they are different Pokémon.

If the different levels of each Pokémon are taken into account, this may also suggest that they are different Pokémon of the same species.

These are some recurring methods to find multiple Legendary Pokémon, even though they are not always obtainable to the player:

From Pokémon Crystal onwards, several Legendary Pokémon of the same species (with different Natures, stats, and moves) are used by non-player characters or available as rental Pokémon.
- In some cases, a Legendary Pokémon is used by someone in battle facilities, while the same species may also be available to the player as a wild in the same game.
In Pokémon Omega Ruby and Alpha Sapphire, several Legendary Pokémon from Generations I to V can be encountered from portals accessible through the Mirage spots.
In Pokémon Sun, Moon, Ultra Sun, and Ultra Moon, the several Legendary Pokémon are used by Trainers in the Battle Tree.
In Pokémon Ultra Sun and Ultra Moon, several Legendary Pokémon from Generations I to VI can be encountered in the Ultra Space Wilds.
In the Crown Tundra, several Legendary Pokémon from Generations I to VII can be encountered multiple times in Dynamax Adventures. However, the player can only catch one of each.
In Pokémon Brilliant Diamond and Shining Pearl, several Legendary Pokémon from Generations I to III can be encountered in Ramanas Park.

In the core series games, the following Pokémon have never been used by non-player characters in battle facilities: Mewtwo, Ho-Oh, Lugia, Kyogre, Groudon, Rayquaza, Dialga, Palkia, Giratina, Reshiram, Zekrom, Kyurem, all Legendary Pokémon introduced from Generation VII onwards, and all Mythical Pokémon.

Generation I Pokémon

Legendary birds

In Pokémon Red, Blue, Yellow, FireRed, and LeafGreen, the player can catch one of each legendary bird: Articuno, Zapdos, and Moltres.
- A wild Articuno can be seen through a pair of binoculars at the Route 15 gate to Fuchsia City, which is a clue that the player can catch this Pokémon at Seafoam Islands. Although this may have been unintended, the fact that Articuno can still be seen through the binoculars even after the player catches the one at Seafoam Islands seems to suggest that there are at least two Articuno in Kanto at once.
From Pokémon Crystal onwards, there are several Articuno, Zapdos, and Moltres usable by non-player characters in battle facilities.
- In Pokémon Emerald, Brandon has the three legendary birds, which are also available during the same time period as wild Pokémon in Pokémon FireRed and LeafGreen.
- Three years later, in Pokémon Platinum, HeartGold, and SoulSilver, Dahlia has Zapdos while the three legendary birds are found as wild Pokémon in Kanto and Sinnoh.
- In Pokémon X and Y, Dana has the three legendary birds while one of them is also available as a wild Pokémon.
In Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, the legendary birds are rare spawns, which allows the player to encounter and catch multiple of each in a single save file.
The existence of regional forms with the legendary birds Articuno, Zapdos, and Moltres implies that a trio separate from Kanto existed in an isolated peripheral population, in this case Galar.

Mewtwo

In the Generation I games and their remakes, the Pokémon Mansion journals treat Mewtwo as a unique Pokémon.
Mewtwo is found both in the Cerulean Cave in Kanto and the Unknown Dungeon in Kalos. They have level 70, which may suggest that they are the same Pokémon.
In Pokémon Ultra Sun and Ultra Moon, the player can obtain a Mewtwo from the Rocky World in the Ultra Space Wilds, while Giovanni from an alternate universe has a Mewtwo as well.

Generation II Pokémon

Legendary beasts

In Pokémon Gold, Silver, and Crystal, the character dialogue indicates that the legendary beasts Raikou, Entei, and Suicune are unique Pokémon created by Ho-Oh. This includes Eusine's dialogue about Suicune in Pokémon Crystal.
In Pokémon Ruby and Sapphire, Entei's Pokédex entry states that it "is thought to have been born in the eruption of a volcano". This text implies that Entei is a unique Pokémon, although it appears to contradict the previously established story that Ho-Oh created it.
In Pokémon FireRed and LeafGreen, a single Raikou, Entei, or Suicune is available as a roaming Pokémon. However, Entei's Pokédex entry explicitly mentions multiple Entei: "It is said that one is born every time a new volcano appears."
From Pokémon Emerald onwards, there are several Raikou, Entei, and Suicune usable by non-player characters in battle facilities.
In Pokémon Emerald, Spenser has a Suicune and Anabel has a Raikou, in addition to other non-player characters with legendary beasts at the Battle Frontier.
In Pokémon HeartGold and SoulSilver, although the character dialogue still indicates that the legendary beasts are unique Pokémon created by Ho-Oh, Darach has an Entei, in addition to other non-player characters with legendary beasts at the Battle Frontier.
- This pair of games takes place three years after Pokémon FireRed and LeafGreen, which featured a single legendary beast available as a roaming Pokémon. For comparison, the wild legendary beasts are level 50 in FireRed and LeafGreen and level 40 in HeartGold and SoulSilver. The lower level in later games may be an indication that these are not the same Pokémon.
In Pokémon Omega Ruby and Alpha Sapphire, Evelyn has the three legendary beasts, in addition to other non-player characters with legendary beasts in the Battle Maison. They are also available as wild Pokémon in Mirage spots.

Lugia and Ho-Oh

In Pokémon FireRed, LeafGreen, and Emerald, both Lugia and Ho-Oh are available as wild Pokémon at Navel Rock. Three years later, in Pokémon HeartGold and SoulSilver, Lugia and Ho-Oh are also available as wild Pokémon in the Whirl Islands and Bell Tower, respectively.
- In the Generation III games as well as in Pokémon Silver and SoulSilver, Lugia is equally found at level 70, which may suggest that this is the same Pokémon. Lugia's moveset is also the same between Pokémon Silver and Generation III. However, this does not apply to Pokémon Gold (level 40 Lugia), Crystal (level 60 Lugia), and HeartGold (level 45 Lugia).
- In the Generation III games as well as in Pokémon Gold and HeartGold, Ho-Oh is equally found at level 70, which may suggest that this is the same Pokémon. Ho-Oh's moveset is also the same between Pokémon Gold and Generation III. However, this does not apply to Pokémon Silver (level 40 Ho-Oh), Crystal (level 60 Ho-Oh), and SoulSilver (level 45 Ho-Oh).

Generation III Pokémon

Legendary giants

The legendary giants Regirock, Regice, and Registeel are available as wild Pokémon in several regions, including Hoenn, Sinnoh, Unova, and Galar.
From Pokémon Ruby and Sapphire onwards, there are several Regirock, Regice, and Registeel usable by non-player characters in battle facilities.
- In Pokémon Emerald, Brandon has the three legendary giants, which are also available as wild Pokémon.
- In Pokémon Omega Ruby and Alpha Sapphire, Dana has the three legendary giants, which are also available as wild Pokémon.

Eon duo

In Pokémon Ruby, Sapphire, Emerald, HeartGold, SoulSilver, Black 2, White 2, Omega Ruby, Alpha Sapphire, Ultra Sun, Ultra Moon, Brilliant Diamond, and Shining Pearl, a single Latias, a single Latios, or both are available as wild Pokémon, and there are also several non-player characters who use Latias or Latios in battle facilities.
- In Pokémon Emerald, Tucker has a Latias and Anabel has a Latios, in addition to other non-player characters in the Battle Frontier.
- In Pokémon Omega Ruby and Alpha Sapphire, Evelyn has a Latios and Morgan has a Latias, in addition to other non-player characters in the Battle Maison.
The Pokédex says about Latias: "They make a small herd of only several members."

Super-ancient Pokémon

In Pokémon Ruby, Sapphire, Emerald, Omega Ruby, and Alpha Sapphire, the character dialogue suggests that Kyogre, Groudon, and Rayquaza are unique Pokémon.
In Pokémon Ultra Sun and Ultra Moon, two Groudon or two Kyogre from alternate universes are seen in-game.
- In Pokémon Ultra Sun, the player can obtain a Groudon from the Cave World in the Ultra Space Wilds, while Maxie from an alternate universe has a Groudon as well.
- In Pokémon Ultra Moon, the player can obtain a Kyogre from the Water World in the Ultra Space Wilds, while Archie from an alternate universe has a Kyogre as well.

Generation IV Pokémon

In Pokémon Diamond, Pearl, Platinum, Brilliant Diamond, and Shining Pearl, Palmer has Heatran, Regigigas, and Cresselia, which are also available as wild Pokémon.
From Pokémon Diamond and Pearl onwards, there are several Heatran, Regigigas, and Cresselia usable by non-player characters in battle facilities.
Heatran can be of either gender, which may imply the existence of at least two individuals of their species.

Lake guardians

In Pokémon Diamond, Pearl, Platinum, Brilliant Diamond, and Shining Pearl, the lake guardians Uxie, Mesprit, and Azelf are treated as unique Pokémon created at the beginning of the universe..
From Pokémon Sun and Moon onwards, there are several Uxie, Mesprit, and Azelf usable by non-player characters in battle facilities.

Pokémon of myth

In Pokémon Diamond, Pearl, Platinum, Brilliant Diamond, and Shining Pearl, the three Pokémon of myth, Dialga, Palkia, and Giratina, are treated as unique Pokémon who were created by Arceus at the beginning of the universe. However, in Pokémon HeartGold and SoulSilver, it is also possible to acquire a level 1 Dialga, Palkia, or Giratina in the Sinjoh Ruins event.
In Pokémon Ultra Sun, the player can obtain a Dialga from the Rocky World in the Ultra Space Wilds, while Cyrus from an alternate universe has a Dialga as well.
- In Pokémon Ultra Moon, the player can obtain a Palkia from the Cave World in the Ultra Space Wilds, while Cyrus from an alternate universe has a Palkia as well.

Phione

It is possible to acquire multiple Phione Eggs by breeding Manaphy or Phione with Ditto. In Pokémon Legends: Arceus, three Phione are found in Seaside Hollow, and more can be found after Manaphy is caught there.

Generation V Pokémon

Forces of nature

From Pokémon Black and White onwards, there are several Tornadus, Thundurus, and Landorus usable by non-player characters in battle facilities.
- In Pokémon Omega Ruby and Alpha Sapphire, Nita has Tornadus, Thundurus, and Landorus, which are also available as wild Pokémon in the Mirage spots.

Swords of Justice

From Pokémon Black and White onwards, there are several Cobalion, Terrakion, and Virizion usable by non-player characters in battle facilities.
- In Pokémon Omega Ruby and Alpha Sapphire, Morgan has Cobalion, Terrakion, and Virizion, which are also available as wild Pokémon in the Mirage spots.
The Pokédex says about Cobalion: "From the moment it's born, this Pokémon radiates the air of a leader." implying its birth is a repetitive occurrence.

Tao trio

In Pokémon Black and White, one Zekrom, one Reshiram, and one Kyurem appear in-game.
- In Pokémon Black, the player can obtain Reshiram and Kyurem, and N obtains Zekrom.
- In Pokémon White, the player can obtain Zekrom and Kyurem, and N obtains Reshiram.
In Pokémon Black 2 and White 2, one Zekrom or Reshiram, and one Kyurem appear in-game.
- In Pokémon Black 2, Ghetsis controls Kyurem fused with N's Zekrom. The player can eventually obtain these Zekrom and Kyurem. Reshiram does not appear in-game.
- In Pokémon White 2, Ghetsis controls Kyurem fused with N's Reshiram. The player can eventually obtain these Reshiram and Kyurem. Zekrom does not appear in-game.
In Pokémon Ultra Sun and Ultra Moon, one Zekrom, one Reshiram, and one Kyurem appear in-game.
- In Pokémon Ultra Sun, the player can obtain a Zekrom from the Rocky World in the Ultra Space Wilds, while Ghetsis from an alternate universe has Reshiram.
- In Pokémon Ultra Moon, the player can obtain a Reshiram from the Cave World in the Ultra Space Wilds, while Ghetsis from an alternate universe has Zekrom.
- In both games, if the player has both Zekrom and Reshiram in the party, then Kyurem can be obtained from the Water World in the Ultra Space Wilds.

Generation VI Pokémon

Aura trio

In Pokémon X and Y, a single Xerneas or Yveltal appears, respectively. It is treated as a unique Pokémon with an ancient history.
- Zygarde (50% Forme) appears to be a unique Pokémon in both games.
In Pokémon Ultra Sun, the player can obtain a Xerneas from the Rocky World in the Ultra Space Wilds, while Lysandre from an alternate universe has a Xerneas as well.
- In Pokémon Ultra Moon, the player can obtain an Yveltal from the Cliff World in the Ultra Space Wilds, while Lysandre from an alternate universe has a Yveltal as well.
In Pokémon Sun and Moon, the player can collect 95 Zygarde Cells and 5 Zygarde Cores spread throughout the Alola region.

Generation VII Pokémon

Type: Null and Silvally

Prior to Pokémon Sun, Moon, Ultra Sun, and Ultra Moon, three Type: Null/Silvally were confirmed to have been created in Alola by the Aether Foundation: one is owned by Gladion, and another was given to Elio/Selene by Gladion. The whereabouts of the third Type: Null are unknown. In Pokémon Sword and Shield, a fourth individual was created in Galar by Macro Cosmos using notes stolen from the Aether Foundation.

Light trio

Solgaleo and Lunala are capable of together creating a Cosmog supposedly as their unique way of breeding but it appears they're rarely seen in the same universe at the same time, making this a rare event. In Pokémon Sun, Moon, Ultra Sun, and Ultra Moon, two Cosmog were confirmed to exist, one stolen from Aether Paradise by Lillie, nicknamed Nebby, another one created by Nebby and a Lunala^S/Solgaleo^M found in another universe's Lake of the Moone^S/Lake of the Sunne^M. In Pokémon Sword and Shield, a third individual is found by an old lady in Freezington in the Crown Tundra, nicknaming it, Fwoofy.

Meltan and Melmetal

The Pokédex states that Meltan live in groups, and that at the end of Melmetal's lifespan, the small shards it leaves behind will eventually be reborn as Meltan. Additionally, multiple Meltan are seen together in promotional videos.

Generation VIII Pokémon

Kubfu and Urshifu

Kubfu and Urshifu can be of either gender, which may imply the existence of at least two individuals of their species.
In The Isle of Armor, the player receives a Kubfu, while Mustard also has one. Mustard's Kubfu will evolve into an Urshifu of the form corresponding to the tower not chosen by the player.

Zarude

Zarude lives deep within dense forests in a pack with others of its kind.

Generation IX Pokémon

Paradox duo

In Pokémon Scarlet and Violet, Professor Sada^S/Professor Turo^V built a "time machine" and used it to bring two Koraidon^S/Miraidon^V to Area Zero. The first one is quirky and friendly and the second one is adamant^S/modest^V and territorial, leading them to become rivals.

Terapagos

Terapagos can be of either gender, which may imply the existence of at least two individuals of their species.
In The Indigo Disk, the player finds a Terapagos in Area Zero Underdepths and even though Terapagos can be of either gender, the only obtainable one is a Hardy male and is said to be last of its kind, implying that in the past, female Terapagos existed, but are now extinct.
The Pokédex says about Normal Forme Terapagos: "It’s thought that this Pokémon lived in ancient Paldea until it got caught in seismic shifts and went extinct."

In the side series games

Pokémon Colosseum

In Pokémon Colosseum, Ho-Oh appears as part of the game story and can also be caught in Mt. Battle. It has the same level and moveset as the Ho-Oh found in Bell Tower from Pokémon Gold and Navel Rock from Pokémon FireRed, LeafGreen, and Emerald, which may suggest that they are all the same Pokémon. However, the Ho-Oh from Mt. Battle has the OT "MATTLE".

In the spin-off games

Pokémon GO

In Pokémon GO, it is possible to catch multiple Legendary Pokémon of the same species. However, the player is usually unable to catch more than 1 Mythical Pokémon of each species. Mythical Pokémon cannot be traded to other players.

On December 14, 2020, there was also a time-limited Shiny Celebi available in addition to the regular Celebi.

Pokémon Snap

In Pokémon Snap, the Kanto legendary birds Articuno, Zapdos, and Moltres hatch from Eggs, which may imply the existence of multiple of each species. Although breeding these species is not possible in the core series games because they are in the No Eggs Discovered Egg Group, Pokémon Snap predates the introduction of the breeding mechanic in the core series games.

The Eggs of Articuno, Zapdos, and Moltres are respectively found in the Cave, Tunnel, and Volcano areas. The origin of these Eggs is not explained and no more than a single legendary bird is seen per trip. However, if the player returns multiple times to the same area, all Pokémon animations are reset at the start of each trip and therefore it is possible to see the legendary birds hatching from the Eggs multiple times over the course of the same playthrough.

Mew appears to be unique as a single Mew is found in Rainbow Cloud. Mewtwo is not seen except as the Mewtwo Constellation formed by crystals in the Cave.

Pokémon Ranger series

The Pokémon Ranger series games are set in the same world as the core series games, as evidenced by Professor Hastings mentioning the Sinnoh region. There are several appearances of Legendary and Mythical Pokémon in the Pokémon Ranger series which may not be exactly the same individuals as in the core series games.

Pokémon Conquest

In Pokémon Conquest, no more than one Legendary or Mythical Pokémon of each species is found in-game.

If this game is considered to be in the ancient past of the core series timeline, then there are at least two different Mewtwo (the one seen in Ransei and the one created in modern times) and two different Rayquaza (the one seen in Ransei is Shiny; Rayquaza is most likely not Shiny in Pokémon Ruby, Sapphire, and Emerald, and it is never Shiny in Pokémon Omega Ruby and Alpha Sapphire).

Pokémon Mystery Dungeon series

In the Pokémon Mystery Dungeon series, most of the Legendary and Mythical Pokémon available in each game are unique. However, in addition to the regular Celebi, there is also a Shiny Celebi.

Pokémon Pinball series

In Pokémon Pinball and Pokémon Pinball: Ruby & Sapphire, it is possible to catch multiple of each Legendary and Mythical Pokémon in a single playthrough.

Pokkén Tournament

In Pokkén Tournament, both players can use the same Pokémon species with alternate color palettes. Therefore, two of each Legendary and Mythical Pokémon are available as fighters, including: Mewtwo, Shadow Mewtwo, Suicune, and the Switch and Arcade versions also include Darkrai.

Both players are also allowed to bring the same Supporter Pokémon to the battle. As a result, two of each Legendary or Mythical Pokémon are available as Supporters: Latios, Jirachi, Victini, Cresselia, Reshiram, Yveltal, and the Switch version also includes Mega Rayquaza, Mew, and Celebi.

Pokémon UNITE

In Pokémon UNITE, it is not possible to use the same Unite license multiple times. However, it is possible for both teams to have the same Legendary or Mythical Pokémon. It was originally impossible to use both Mewtwo Unite licenses on the same team, however this was changed in version 1.20.1.2, meaning it is possible for up to four Mewtwo to be active in a single battle if both teams have both Mewtwo Unite licenses on their team.

Pokémon Puzzle League

In Pokémon Puzzle League, Mewtwo appears to be unique. This is the only Legendary Pokémon seen in-game.

Pokémon Team Turbo

In Pokémon Team Turbo, there are 25 Pokémon species available as player characters in the racing games. They all appear to be unique, with no more than a single Pokémon of each species competing in the races. This includes three Legendary Pokémon (Kyogre, Groudon, and Rayquaza) and one Mythical Pokémon (Deoxys).

Pokémon Battle Chess series

In the Pokémon Battle Chess series, there is a total of two Legendary or Mythical Pokémon of each species, one used by each player:

Victini, Reshiram, and Zekrom in Pokémon Battle Chess BW Version and Pokémon Battle Chess W.
Lugia and Ho-Oh in Pokémon Battle Chess and Pokémon Battle Chess W.

In the games where Victini is available, it hatches from an Egg. This may further imply the existence of multiple of its species, even though breeding Victini is not possible in the core series games because it is in the No Eggs Discovered Egg Group.

Pokémon Party mini

In Pokémon Party mini, there is no Legendary or Mythical Pokémon in the main gameplay, but a Celebi is seen in the Celebi's Clock feature.

Pokémon Zany Cards

In Pokémon Zany Cards, the deck used for the Wild Match game includes a single card for each available Legendary Pokémon. Specifically, Articuno, Zapdos, Moltres, Suicune, Raikou, Entei, Lugia, and Ho-Oh.

Learn with Pokémon: Typing Adventure

In Learn with Pokémon: Typing Adventure, the available Legendary and Mythical Pokémon appear as bosses at the end of certain routes: Reshiram, Zekrom, Cobalion, Ho-Oh, Lugia, Terrakion, Virizion, Kyogre, Celebi, and Groudon (in addition to Serperior and Zoroark as bosses in other routes).

Although each boss Pokémon appears only once over the course of the game, it is possible to catch multiple of them in the same playthrough by finishing the same route multiple times.

Spin-off games with no Legendary or Mythical Pokémon

There are several spin-off Pokémon games with no known Legendary or Mythical Pokémon. This includes Hey You, Pikachu!, Pokémon Puzzle Challenge, Pokémon Dash, Pokémon: Magikarp Jump, Pokémon Tug of War Tournament: Absolutely Get Medal!, Pokémon Tower Battle, Eevee × Tamagotchi, the Perdue series games (Pokémon Team Rocket Blast Off, Pokémon Poké Ball Launcher, and Pokémon Seek & Find), all the e-Reader games, and most of the Pokémon.com online games.

Super Smash Bros. series

This section is incomplete.
Please feel free to edit this section to add missing information and complete it.
Reason: Can multiple instances of the same Legendary or Mythical appear at the same time from multiple Poké Balls or Master Balls? Can a Poké Ball and a Master Ball be used at the same time, releasing two instances of the same Pokémon?

In the Super Smash Bros. series, Mewtwo is the only Legendary Pokémon available as a fighter. According to Mewtwo's trophy descriptions and the character dialogue concerning the origin of Mewtwo, it is implied that both Mew and Mewtwo are unique Pokémon. However, Mewtwo has four or eight alternate color schemes depending on the game.

In this game series, any of the available fighters can appear as multiple instances in the same battle. For instance, eight Mewtwo with alternative color schemes are able to fight at the same time in the 8-Player Smash mode.

Game	Image
Melee
3DS/Wii U
Ultimate

In animation

Pokémon the Series

In Pokémon the Series, there are several Legendary and Mythical Pokémon of the same species.

Typically, when a new species of Legendary or Mythical Pokémon is introduced in the series, it is implied to be a unique Pokémon, but additional Pokémon of the same species may separately be introduced in later episodes.

Multiple Pokémon of the same species seen together

Meltan in *Pokémon the Series: Sun & Moon*

Occasionally, multiple Legendary or Mythical Pokémon of the same species are seen together:

In The Mystery is History, an adult Lugia is the parent of the baby Lugia named Silver.
In Pokémon Heroes: Latios & Latias, the Japanese-only introduction displays several Latios and Latias. In the end of the movie, two Latios are seen flying with one Latias.
In Destiny Deoxys, two Deoxys are seen.
In Pokémon: Mega Evolution Special IV, there is a Zygarde Core and multiple Zygarde Cells.
In Pokémon the Series: XY, the Zygarde Cores Squishy and Z2 are seen together.
In Pokémon the Series: Sun & Moon, multiple Meltan have made a number of appearances.
In Thank You, Alola! The Journey Continues!, Mallow's Shaymin and three other Shaymin appear in their Sky Formes.
In Time After Time!, a pair of Celebi appear, one of whom being Shiny.

In the manga

Pokémon Adventures

In Pokémon Adventures, most of the Legendary and Mythical Pokémon appear to be unique, but there are some exceptions:

The Kantonian and Galarian forms of the legendary birds appear.
The original trio of legendary giants exist in both Hoenn and Galar.
There are two Deoxys referred to as Organism No. 1 and Organism No. 2.
Two Cosmog, Nebby and an unnamed one, eventually evolved into Cosmoem and untimately, Nebby evolved into a Lunala and the other into a Solgaleo.
Mustard owned an Single Strike Style Urshifu and a Kubfu, but latter was gifted to Henry. He later evolved it into a Rapid Strike Style Urshifu and nicknamed it Āman.

In the books

Let's Find Pokémon!

In the Let's Find Pokémon! book series, each species of Legendary and Mythical Pokémon is usually seen in several locations. However, there are no known instances of multiple Pokémon of the same species appearing at the same place, which may suggest that they are all unique Pokémon nonetheless.

Pokémon Tales

In I'm Not Pikachu!, several children are transformed into Mew and Mewtwo (as well as Pikachu) as a result of watching a Pokémon movie implied to be Pokémon: The First Movie.

In Meet Mew!, there is a group of six Mew, with one of them being a darker shade of pink.

Children transformed into Mew, Mewtwo, and Pikachu
A group of Mew

In the TCG

In the Pokémon Trading Card Game, there are several cards with the same species, including Legendary and Mythical Pokémon cards, but with different characteristics such as their HP, attacks, level, and type. There are also card variations such as Rayquaza, Rayquaza-EX, Rayquaza-GX, Rayquaza V, Rayquaza δ, and Shining Rayquaza.

In a deck, the four-card limit applies to the Pokémon cards with the same name. For instance, the player can have up to four Mew and up to four Mew ex cards in the same deck.