Get the Upgrade from one of the Team Galactic Hideouts
And then to make a Porygon Z get the Dubious disk from another one of ther hideouts
You must evolve Porygon (From Celadon) using the UpGrade to Porygon 2.
You need to trade polygon while it's holding the item "Up-Grade"obtained in the rocket warehouse on island 5 or 6.
Fly to Veilstone city. And there is two houses behind the Pokemon center go into the right one and talk to a guy who will give you a porygon then you can evolve it in trade making it hold the Up-grade. Good luck!
You can give the Upgrade to Porygon and then trade it to a friend to make Porygon evolve into Porygon2, in order to evolve Porygon2 then give a Dubious Disc to Porygon2 and then trade it to someone and it'll evolve into a Porygon-Z.
give it to a porygon and trade it to another person and it evolves into a porygon2
you have to have a upgrade and then trade it
you give porygon the upgrade then trade it to get a porygon 2 then you give your porygon 2 another upgrade and trade yet again to get a porygon-z
To evolve Porygon to Porygon2, you will need to have it hold an Upgrade and trade it. You can get Porygon-Z by having Porygon hold a Dubious Disk and trade it.
For Porygon to evolve you have to trade it whilst it is holding an 'upgrade'. See related links for more info.
the upgrade is used to evolve porygon into porygon-z
I believe you can can find an UpGrade(used for evolving Porygon into Porygon2) in the Eterna City Hideout.
Give Porygon an upgrade to hold and then trade it. Also, if you want a Porygon-Z give Porygon2 a Dubious disc to hold and then trade it.
If you give it to porygon and trade it, porygon will evolve
You give it to a Porygon and trade it, to get a Porygon 2.
you have to get a porygon, then trade it with an upgrade, then you have to trade porygon2 with a dubious disc, which is found in the team galactic headquarters in veilstone city.
you cant find a porygon ,you can find it in Pokemon pearl or on platinum
You can use Upgrade to evolve your Porygon into Porygon 2. To do this. Make your Porygon hold the Upgrade in a trade. (This will only work if trading it to a G/S or newer game.)