Porygon2

Porygon2 is a Normal-type Pokémon from Johto region. It evolves from Porygon when fed 25 candies and Up-Grade is used. It can evolve into Porygon-Z when fed 100 candies and a Sinnoh Stone is used.

Trivia

 * Like other Pokémon that require an evolution item to evolve into them, Porygon2 doesn't spawn in the wild nor hatch from eggs and only way to acquire it is by an evolution.
 * Like other Pokémon that require an evolution item to evolve into them, Porygon2 doesn't spawn in the wild nor hatch from eggs and only way to acquire it is by an evolution.