Porygon2 first appeared as a Porygon in A Tale of Ninetales, when Blue bought it from the Rocket Game Corner. After Blue let Porygon out of its Poké Ball, it ran away, causing Blue to run into Red. Because of this, the two accidentally trade their Pokémon. During the three days that Red has Blue's team, he attempts to get them to relax and open up to him, with little success. They later traded back, while keeping the caring attitude that Red instilled in them.
In Striking Golduck, Porygon was Blue's last resort to fight Agatha's Gengar. Because Gengar would hide in the shadows and attack with Counter, Blue decided to have Porygon use Conversion to turn into a Ghost type. Porygon was then able to counter Gengar's Counter attack but was unable to get Gengar out of the shadows long enough to land a finishing attack. Blue eventually managed to lure Gengar out of the shadows and had Porygon finish it off with a Psybeam.
Porygon2 traveling through cyberspacePorygon2 and Blue
In Red and Blue Make Purple Opponents, Porygon2 was used alongside Golduck in a Double Battle against Red and his Snorlax, Snor, and his Gyarados, Gyara. Gyara started the battle off with his IntimidateAbility, to which Blue responded by having Golduck use Iron Tail and Porygon2 use Tri Attack on Red's Pokémon. Red then had Gyara counterattack by Body Slamming Porygon2, while Snor attacked Golduck with Strength. Gyara proceeded to fire a Hyper Beam at Golduck, who went on to use Dig to hide and avoid further damage. Red countered this by having Snor use Earthquake, dealing damage to Porygon2, twice the damage to Golduck due to him being underground, which caused him to faint, and Gyara being unaffected, due to him being part Flying-type. As Red celebrated, he notices that Gyara had been paralyzed by the effects of Tri Attack. Blue takes the opportunity to switch Porygon2 out in favor of Scizor.
In Once More into the Unown, Porygon2 used its ability to move through cyberspace to enter the Trainer Tower's computer system, "R". Using the Salac Berry that Blue gave it, Porygon2 quickly reached the central nervous system and attacked it with Zap Cannon, disabling it. Not long after this, "R" recovered and trapped Porygon2 with a virtual lock.
In Phew for Mew, Porygon2 and Blue found themselves petrified by Sird, along with the four other Pokédex holders and their Pokémon.
In The Final Battle VII, Porygon2 appeared alongside the rest of Blue's team when he was checking to make sure they all survived the petrification caused by Mewtwo and Darkrai. Soon after, it battled Guile Hideout's stolen Battle Tower Pokémon.
Personality and characteristics
As a Porygon, it was originally disobedient and would run away. However, after Blue and Red's temporary trade, it became more affectionate towards Blue and followed his orders from then on. As it is a man-made Pokémon designed to move around cyberspace, Porygon2 has been in use mainly via Blue's Pokédex as a surprise attack.