Articuno, Zapdos, and Moltres appear in the Pokémon franchise. Articuno , known as Freezer (フリーザー, Furīzā) in Japan, is a dual ice and flying type character in the franchise; Zapdos , known in Japan as Thunder (サンダー, Sandā) is one of the rarest Pokémon; and Moltres (ファイヤー, Faiyā, ), is based on the mythological Phoenix.
Since appearing in Red and Blue, they have made multiple appearances in Pokémon spin-offs, manga, and anime, notably in the film Pokémon The Movie 2000. They have also appeared in all core series games, though they are usually only obtainable through trade or transfer. Their appearances have received generally positive reception from critics.