4275. Porygon

Porygon is a Normal-type Pokémon.
It evolves into Porygon2 when traded holding an Up-Grade, which evolves into Porygon-Z when traded holding a Dubious Disc.

Porygon is the first known artificial Pokémon that was ever created. It was created by Pokémon Lab according to a Pokémon Report found in Silph Co. In addition, its presence as a prize pokémon in the then-Team Rocket owned Celadon Game Corner as well as Team Rocket's earlier control over Silph Co. suggests that Team Rocket was involved in its creation.
Porygon has a pink polyhedral body with a blue stomach, blue triangular prism feet, and a blue rectangular prism tail. Porygon has a pink, polyhedral head that ends in a blue beak and has hexagonal eyes. Porygon is made completely out of programming code. Built into this code is a Silph copyright protection preventing duplication through electronic means.

Porygon is a genderless species.

Porygon is shown with the ability to change types into either one of its own moves or its opponent's type, or to resist the last move that hit it using a process only it and its evolutions can know. This process is known as Conversion or Conversion 2, with Conversion having the former function, and Conversion 2 having the latter function.
Porygon is also capable of changing its appearance using Sharpen, and is one of the only Pokémon that can learn this move.
Porygon is capable of using various Ice and Electrical attacks, along with a few Psychic abilities and the rare ability to wield Tri Attack.
Due to its man-made origins, Porygon does not have the need to breathe.
Even though Porygon is an unevolved, non-legendary Pokémon, it can still learn Hyper Beam and Giga Impact. This is because it could not evolve when it was introduced.

Porygon can only perform the basic motions included in its program, and thus it can be said that its behavior is artificial.

Because they are man-made, Porygon are generally found in computers or in labs and other buildings people work, which makes them almost uncatchable. However, Porygon are found in the wild in Sinnoh's Trophy Garden and can be won at the Rocket Game Corner in Celadon City.

Porygon is completely artificial and doesn't need to eat. However, it is still seen eating Pokémon food in Pokémon Snap. It can also be seen eating apples and gummies in the Pokémon Mystery Dungeon Series. It can also be seen eating Poffins and Pokéblocks and drinking Aprijuice if fed.