 Certain Legendary Pokémon colloquially termed "roaming Pokémon" randomly move around the world map and flee from battle, making them even harder to obtain.is a separate group of Pokémon.The term is commonly associated with Pokémon that cannot be obtained through standard gameplay, requiring an external mechanic to obtain them; however, some Mythical Pokémon have been made obtainable in later releases, notably Deoxys.