List of permanently missable Pokémon

There are several permanently missable Pokémon in the games.

Event Pokémon

Main article: 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 codes. 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 have been distributed only for some of the latest games, although the older Mythical Pokémon (such as 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 trades or cheating).

Mutually exclusive Pokémon

Main article: 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 get them all 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 Bulbasaur, Charmander, and Squirtle as their starter in Pokémon Red, Blue, FireRed and LeafGreen. The player may also choose one of these Pokémon as a gift given by Professor Oak in HeartGold, SoulSilver, by Professor Sycamore in X and Y, and by Grand Oak in Pokémon HOME.

Wild battles against in-game event Pokémon

There are several wild Pokémon battles that start from in-game events, such as when a player interacts with a Legendary Pokémon or other Pokémon visible in the overworld. In the first few generations, these Pokémon were permanently missable, in which case no other Pokémon of the same species would appear in the current game.

• In any game prior to Pokémon Platinum, if the player defeats any of these Pokémon, that Pokémon becomes permanently unavailable.
• In Generations I and II, if the player runs from any of these Pokémon, it becomes permanently unavailable.
  • Starting in Generation III, if the player runs from a wild battle that started from an in-game event, the respective Pokémon will respawn.

Starting in Pokémon Platinum, in-game event Pokémon that can be battled must either be caught or can respawn if they are defeated.

Generation I

Main article: List of in-game event Pokémon in Generation I

Snorlax (2×)	Articuno		Zapdos		Moltres		Mewtwo
Normal	Ice	Flying	Electric	Flying	Fire	Flying	Psychic

Generation II

Main article: List of in-game event Pokémon in Generation II

Lapras		Snorlax		Sudowoodo
Water	Ice	Normal		Rock
Raikou		Entei		Suicune
Electric		Fire		Water
Lugia		Ho-Oh		Celebi (requires GS Ball)
Psychic	Flying	Fire	Flying	Psychic	Grass

Generation III

Main article: List of in-game event Pokémon in Generation III

Pokémon Ruby, Sapphire, and Emerald

MewE (requires Old Sea Map)		SudowoodoE		Regirock	Regice	Registeel
Psychic		Rock		Rock	Ice	Steel
Latias		Latios		KyogreSE	GroudonRE	Rayquaza
Dragon	Psychic	Dragon	Psychic	Water	Ground	Dragon	Flying

Pokémon FireRed and LeafGreen

Snorlax (2×)	Articuno		Zapdos		Moltres		Mewtwo
Normal	Ice	Flying	Electric	Flying	Fire	Flying	Psychic
Raikou	Entei		Suicune		Lugia (requires MysticTicket)		Ho-Oh (requires MysticTicket)
Electric	Fire		Water		Psychic	Flying	Fire	Flying
			Deoxys (requires AuroraTicket)
			Psychic

Roaming Roar bug

Due to an oversight in FireRed and LeafGreen, if the wild Raikou or Entei uses Roar, that Pokémon becomes permanently unavailable in the current game. (Suicune is unaffected by this glitch, because it does not have Roar in its moveset when found in these games.)

Raikou		Entei
Electric		Fire

Generation IV (Pokémon Diamond and Pearl)

Main article: List of in-game event Pokémon in Generation IV

Uxie		Mesprit		Azelf		Rotom		Heatran
Psychic		Psychic		Psychic		Electric	Ghost	Fire	Steel
Dialga		Palkia		Giratina		Regigigas		Cresselia
Steel	Dragon	Water	Dragon	Ghost	Dragon	Normal		Psychic

Unobtainable Pokémon

In Pokémon Diamond and Pearl, the items required to catch Darkrai, Shaymin, and Arceus (Member Card, Oak's Letter, and Azure Flute, respectively) were never released, therefore these Pokémon are not legitimately obtainable. If the player obtains any of these items via glitches or cheating, it works as intended. Additionally, the Member Card and Oak's Letter were normally obtainable through events in Pokémon Platinum.

Darkrai	Shaymin	Arceus
Dark	Grass	Normal

Bulbasaur in Pokémon Yellow

In Pokémon Yellow, the single Bulbasaur is permanently missable as well. To receive this Bulbasaur, the player's starter Pikachu needs to have a friendship value of at least 147. If the starter Pikachu is traded away or sent to the 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 evolved to Raichu, or if it was released in another game. Additionally, it can't be returned once it was sent to the 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 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.

Bulbasaur
Grass	Poison
	Ivysaur
Grass	Poison
	Venusaur
Grass	Poison

See also

• Permanently missable items