Pokémon Go will be invaded by swarms of Ditto as part of the game's celebration of April Fools' Day. Players can get regular or shiny Dittos during the one-day event.
The same is a Pokémon who can change into another Pokémon. It can take on the appearance, characteristics, and assaults of some other Pokémon it sees. Even though Ditto was absent from the first send-off of Pokémon Go, Ditto ultimately tracked down its direction into the world, stowing away as Pidgey, Rattata, Zubat, and Magikarp.