Players control Ditto in Pokémon Pokopia. This Ditto uses its transformation ability to imitate a human, creating the game's unusual player-character premise.
That setup gives the protagonist a direct connection to the Pokémon world while still allowing a human-like avatar. Players can customize the Ditto's appearance, including its skin color, hair color, and clothing. The character therefore looks like a person in play, even though the story identifies it as a Ditto.
Ditto's transformation is not just a narrative joke. The character learns moves from Pokémon it befriends, then uses those abilities to interact with the environment. Different powers can help with planting, watering, cutting debris, or breaking rocks.
A common mix-up is to answer Pikachu because Pikachu is one of the franchise's best-known mascots and appears in Pokopia. Pikachu is instead one of the special Pokémon encountered in the story; the playable protagonist is Ditto.