*These pre-evolved Pokémon were introduced in generations following introduction of the species they evolve into (and after the 2nd, which introduced breeding). The pre-evolutions will only hatch from eggs produced under special conditions. All other eggs will hatch directly into the next stage of evolution.
†Marked as Mythical Pokémon for at least one game entry. These Pokémon cannot be encountered and caught in the course of normal gameplay, and does not affect the completion of Pokédex. They are officially only made available via promotional events, or transferred from a previous version or spin-off titles under certain conditions. Lugia and Ho-Oh are special cases in that are Mythical only in Game Boy Advance (GBA) versions but legendary in other versions, where they can be obtained by normal gameplay.
‡In Pokémon Black and White, Zorua and Zoroark cannot be encountered and caught in the course of normal gameplay without trading or obtaining them from promotional distributions. However, Zorua and Zoroark are not Mythical Pokémon, because they are required to complete the Pokédex in Pokémon Black and White.
↑Staff, Pokémon Company International; Whitehill, Simcha; Neves, Lawrence; Frang, Katherine; Silvestri, Chris (17 November 2016). Encyclopedia. Hachette Children's Group. p. 151. ISBN978-1-40834-9-953. Archived from the original on 5 April 2023. Retrieved 28 December 2017 – via Google Books.
↑ 1.01.1The Generation I and II main series games were later re-released via the Nintendo 3DS eShop in 2016–2018, with the Generation I titles being in celebration of the franchise's 20th anniversary.
↑Two Pokémon, Meltan and Melmetal, were introduced in a 2018 update to the spin-off gamePokémon Go. Let's Go, Pikachu! and Let's Go, Eevee! include Meltan and Melmetal as playable Pokémon only through being transferred over from Pokémon Go.[1]
↑Hisui was the ancient name for the region of Sinnoh
↑Two Paradox Pokémon, Walking Wake and Iron Leaves, were added post-release in an online event starting 27 February 2023.[2]
↑ 5.05.15.25.3Although Cranidos, Rampardos, Shieldon and Bastiodon are Fossil Pokémon, they are obtainable in the wild in Legends: Arceus.[6]