It is found in Pokémon Yellow by doing Method #3 of the Mew glitch with a Pokémon with a special stat of 195. It can also be obtained by doing the Time Capsule exploit with Quilava. Its Red/Blue equivalent is h POKé. However, since h POKé's Pokédex entry freezes the game, some players might want to trade a ゥ ( Z4 in order to get h POKé.
's third sprite can appear only before catching it. It then switches between its first and second sprites in later encounters.