View source for List of permanently missable Pokémon

There are several '''permanently missable Pokémon''' in the games. These are [[Pokémon (species)|Pokémon species]] that the player may potentially obtain in the games, but may become permanently unavailable depending on the circumstances.

Even if the player is unable to catch a certain Pokémon in the current game, they may still obtain other Pokémon of the same species by [[trade|trading]] or [[transfer|transferring]] with other players.

==Gift Pokémon==
{{main|Gift Pokémon}}
Most of the [[gift Pokémon]] are [[List of Pokémon by availability|obtainable]] only once per game. Some of these Pokémon (as well as their evolutions and previous evolutionary stages, if any) are not available anywhere else in the game, except by trades or transfers from other games, or by {{pkmn|breeding}} the gift Pokémon once it is obtained. Therefore, if the player loses any of these scarce gift Pokémon by either [[released Pokémon|releasing]] it or [[trade|trading]] it away without breeding it first, then it and its evolutionary family will not be available anywhere else in the current game.

For instance, in several Pokémon games, the only way to obtain a [[starter Pokémon]] of the current [[region]] (outside of trades and transfers from other games) is by choosing that starter at the beginning of the game. In some games, it also possible to obtain one or more starter Pokémon from other regions as gifts. If the player releases it or trades it away without breeding it first, then that starter and its evolutions would be unavailable in the current game.

As another example, in {{game|FireRed and LeafGreen|s}}, the player is able to choose between receiving a {{p|Hitmonlee}} or a {{p|Hitmonchan}}. The player may then breed it to obtain {{p|Tyrogue}}, which can evolve into either of these Pokémon, as well as into {{p|Hitmontop}}. If the player obtains Hitmonlee or Hitmonchan but then releases it or trades it away without breeding it, then the whole evolutionary family (Tyrogue, Hitmonlee, Hitmonchan, and Hitmontop) would be unavailable in the current game.

===Bulbasaur (Pokémon Yellow)===
In {{game|Yellow}}, the player may be permanently unable to receive the single available {{p|Bulbasaur}}. To receive this Bulbasaur, the player's {{ga|Red's Pikachu|starter Pikachu}} needs to have a [[friendship]] value of at least 147. If the starter Pikachu is traded away or sent to [[Pokémon Bank]] (from the [[Virtual Console]] version) before its friendship is raised to the required level, the player will be unable to receive Bulbasaur.

If the starter Pikachu is traded back to its original Pokémon Yellow game, its friendship can be raised normally. However, this may not be possible in some circumstances, such as if the starter Pikachu has [[evolution|evolved]] to {{p|Raichu}} (as it's not possible to change the friendship of a Raichu even if it returns to its original game), or if it was [[Released Pokémon|released]] in another game. Additionally, it can't be returned once it was sent to Pokémon Bank.

Alternatively, even if the starter Pikachu is unavailable, if any other Pikachu with the same Original Trainer name and [[Trainer ID number]] is traded from any [[Generation I]] or [[Generation II|II]] game, the traded Pikachu will be equally treated as Pokémon Yellow's starter Pikachu, and its friendship can be raised normally in order to receive Bulbasaur.

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|-
! style="width:80px; background:#{{kanto color light}}; {{roundytop|5px}}" colspan="2" | [[File:001Bulbasaur.png|100px]]<br>{{pcolor|Bulbasaur|{{kanto color dark}}}}
|-
{{typetable|Grass}}
{{typetable|Poison}}
|- style="background:#{{kanto color light}}"
| {{MSP/3|002|Ivysaur}}
| {{pcolor|Ivysaur|{{kanto color dark}}}}
|-
{{typetable|Grass}}
{{typetable|Poison}}
|- style="background:#{{kanto color light}}"
| {{MSP/3|003|Venusaur}}
| {{pcolor|Venusaur|{{kanto color dark}}}}
|-
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| style="background:#{{poison color}}; {{roundybr|5px}}" | {{tcolor|Poison|FFF}}
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==Wild Pokémon from in-game events==
{{main|List of wild Pokémon from in-game events}}
There are several [[wild Pokémon]] battles from in-game events. They include some [[Legendary Pokémon]] and other Pokémon visible in the overworld, as well as [[roaming Pokémon]].

In most [[core series]] games, there is only one per species of [[Legendary Pokémon]]. In some cases, there is also a limited supply of other wild Pokémon from in-game events. For instance, there are only two {{p|Snorlax}} in [[Pokémon Red and Blue Versions|Pokémon Red, Blue]], [[Pokémon Yellow Version|Yellow]], [[Pokémon FireRed and LeafGreen Versions|FireRed, and LeafGreen]], and only one {{p|Sudowoodo}} in {{game2|Gold|Silver|Crystal}} (this Sudowoodo respawns in {{game|HeartGold and SoulSilver|s}}). Additionally, the player can [[Pokémon breeding|breed]] several of these Pokémon to obtain more Pokémon of the same species. However, it's not possible to breed any [[Legendary Pokémon]].

* In any game prior to {{game|Platinum}}, if the player defeats most of these Pokémon, they will not appear again.
** The single exceptions are {{p|Spiritomb}} in {{2v2|Diamond|Pearl}} and these time-based Pokémon: {{p|Lapras}} appears every [[Days of the week|Friday]] on {{game2|Gold|Silver|Crystal}} (and [[Pokémon HeartGold and SoulSilver Versions|their remakes]]), and {{p|Drifloon}} also appears every Friday, in Diamond and Pearl as well as Platinum.
* In [[Generation I|Generations I]] and [[Generation II|II]], if the player [[escape|runs]] from any of these Pokémon, it becomes permanently unavailable. Starting in [[Generation III]], [[Legendary Pokémon]] respawn if the player runs, but other Pokémon can still become permanently unavailable.
* Additionally, even after the player obtains any of these Pokémon, the player may still lose it by either [[released Pokémon|releasing]] it or [[trade|trading]] it away.

===Fake items===
There are {{p|Voltorb}}, {{p|Electrode}}, {{p|Foongus}}, and {{p|Amoonguss}} disguised as items in some games. They don't respawn if they are defeated. In most cases, other Pokémon of the same species are found elsewhere in the same games. However, in {{g|Ultra Sun and Ultra Moon}}, the only Electrode available are the ones disguised as items in [[Team Rocket's Castle]], so if they are defeated or skipped (as the area can't be revisited after defeating [[Giovanni]]), Electrode cannot be caught in these games. This is also the only way to get an Electrode in a [[Beast Ball]]. Additionally, the only way to obtain Voltorb is to breed said Electrode with {{p|Ditto}}.

===Roaming Roar bug (Pokémon FireRed and LeafGreen)===
Due to [[List of glitches (Generation III)#Roaming Roar bug|an oversight]] in FireRed and LeafGreen, if the wild {{p|Raikou}} or {{p|Entei}} uses {{m|Roar}}, that Pokémon becomes permanently unavailable in the current game. ({{p|Suicune}} is unaffected by this glitch, because it does not have Roar in its moveset when found in these games.)

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! style="width:80px; background:#{{johto color light}}; {{roundytl|5px}}" colspan="2" | [[File:243Raikou.png|100px]]<br>{{pcolor|Raikou|{{johto color dark}}}}
! style="width:80px; background:#{{johto color light}}; {{roundytr|5px}}" colspan="2" | [[File:244Entei.png|100px]]<br>{{pcolor|Entei|{{johto color dark}}}}
|-
| style="background:#{{electric color}}; {{roundybl|5px}}" colspan="2" | {{tcolor|Electric|FFF}}
| style="background:#{{fire color}}; {{roundybr|5px}}" colspan="2" | {{tcolor|Fire|FFF}}
|}

==Mutually exclusive Pokémon==
{{main|Mutually exclusive Pokémon}}
In some cases, there are multiple Pokémon potentially available in a single game, but the player must choose one of them or otherwise can't catch all of them in a single game. They include many trios of [[starter Pokémon]], some [[Fossil]] Pokémon and in some cases [[Legendary Pokémon]].

For instance, the player is able to choose between {{p|Bulbasaur}}, {{p|Charmander}}, and {{p|Squirtle}} as their [[starter Pokémon|starter]] in [[Pokémon Red and Blue Versions|Pokémon Red, Blue]], [[Pokémon FireRed and LeafGreen Versions|FireRed and LeafGreen]]. The player may also choose one of these Pokémon as a gift given by [[Professor Oak]] in [[Pokémon HeartGold and SoulSilver Versions|HeartGold, SoulSilver]], by [[Professor Sycamore]] in [[Pokémon X and Y|X and Y]], and by [[Grand Oak]] in [[Pokémon HOME]].

==Item scarcity==
In some games, there is a limited supply of certain [[Evolution stone]]s or [[Incense]]s. If the player loses some of these items, then the respective Pokémon evolutions or pre-evolutions may be unavailable outside of trades.

The player may lose these items by selling or discarding them, or a Pokémon [[held item|holding]] them may be traded away or {{pkmn2|released}}. Some moves (such as {{m|Fling}} and {{m|Trick}}) may also cause a Pokémon to lose its held item. Additionally, the Evolution stones are consumed when used to evolve a Pokémon; once all Evolution stones of a certain kind are used up, the player will be unable to evolve the respective Pokémon in the current game. 

Some examples:

* There are five [[Moon Stone]]s available in {{game2|Red|Blue|Yellow}}, which are more than enough to evolve all the four compatible Pokémon in these games ({{p|Nidorina}}, {{p|Nidorino}}, {{p|Clefairy}}, and {{p|Jigglypuff}} into {{p|Nidoqueen}}, {{p|Nidoking}}, {{p|Clefable}}, and {{p|Wigglytuff}}, respectively). However, if the player evolves some repeated Pokémon of the same species (for instance by evolving five Jigglypuff into Wigglytuff), then the other evolutions would become unavailable in the current game.
* In {{game|Gold and Silver|s}}, multiple Pokémon can evolve with a [[Fire Stone]], [[Water Stone]], [[Thunder Stone|Thunderstone]], or [[Leaf Stone]], but each of these stones is available only once per game (except from [[trade]]s or [[Mystery Gift]]), so the player is unable to {{pkmn2|mutually exclusive|acquire all the available evolutions}} in a single game.
* In {{game2|Ruby|Sapphire|Emerald}}, there is only one [[Sea Incense]] available. The only way to obtain {{p|Azurill}} outside of trades is by breeding {{p|Marill}} or {{p|Azumarill}} holding that item. Therefore, if the player loses that item, it would not be possible to obtain Azurill in the current game.

==Event Pokémon==
{{main|Event Pokémon}}
Some Pokémon, including the [[Mythical Pokémon]], have been distributed in real-life events, as well as via Wi-Fi, [[Nintendo Network]], or [[serial code]]s. Sometimes, the Pokémon were distributed directly, but at other times an item was distributed which leads to the respective Pokémon. However, these Pokémon and items have become unavailable once their respective events ended. Additionally, the real-life events were restricted to some regions, so they were not available anywhere else in the first place.

Usually, these Pokémon and items have been distributed only for some of the latest games, although some of the older Mythical Pokémon (such as {{p|Mew}}) have been repeatedly distributed in new events for each [[generation]]. When someone starts a new game on an older system such as the [[Game Boy]] or [[Game Boy Advance]], they may not have access to any of the Pokémon from past events (except via [[trade]]s or [[cheating]]).

==See also==
* [[Permanently missable items]]

[[Category:Pokémon]]

[[it:Pokémon irrecuperabili]]