You cannot catch Mew in Pokémon Red, Blue, or Yellow.
In Pokémon Yellow the player can first catch Mew before the Quick Mew Glitch by using the exclusive Bug Catcher Long-Range Trainer in Viridian Forest and the Super Nerd in Mt. Moon B2F. Preparation: First, the player should skip the fight against the penultimate bug catcher in Viridan Forest.
There are a total of 151 Pokémon in the game – but you won’t be able to get them all without trading with other Pokémon players. There are also a few Pokémon that only evolve by trading.
“We understand how traumatic it is for the entire Pokémon community to realize that Mew was lying under the truck the entire time, waiting to be discovered. But it’s too late now,” Furukawa said.
After a failed capture attempt, Red threw an Ultraball at Mewtwo and successfully caught it.
For all aspiring new Mew owners, the surest way to get the pink Pokémon is by buying a Poké Ball Plus. The accessory was once used to get Mew in Pokémon Let’s GO and now the same method is back to provide a Mew for the latest generation.
Mew is an ultra-rare first-generation promotional Pokémon that couldn’t be caught in the wild at all in Pokémon Red Version and Blue Version, making it the rarest Pokémon of all since it could ‘ not encountered in the normal course of the game.
While players cannot typically encounter Mew in the wild or fight it in raids, players still have a chance of catching one. Mew is a pure Psychic-type Pokemon, meaning it’s weak to Bug, Dark, and Ghost-type moves. It also resists damage from Combat and Psychic attacks.