Porygon2 appears to be a scientific red and blue Pokémon with a long bill. Porygon2 also has two round-shaped feet at the bottom of it. Its body is red and everything else appears to be blue. It is supposedly a red and blue "bird" Pokémon, and has a large bill to support this fact.
It was upgraded to enable the exploration of other planets. However, it all failed to measure up.
Porygon2 has the abilities Trace and Download along with the hidden ability Analytic. Trace copies the opponent's Pokémon's special ability whilst Download increases Porygon2's Attack or Special Attack by one depending on the foe's stats. Analytic increases Porygon2's power of its next move by 30% if Porygon2 goes after the foe.
It evolves when you trade it while holding an Up-Grade. Porygon2 can also evolve in the same manner into a Porygon-Z, which is only obtainable by trade, while holding the Dubious Disk.
Porygon2 and Porygon-Z are the only Pokémon that have not appeared in the anime. However Porygon 2 and Porygon Z did make a minor cameo appearance in the fifteenth movie Pokemon the Movie: Kyuren vs the Sword of Justice in the opening.