i only know for Pokemon heart gold.
First youneed 9999 game coins by playing voltorb fip in the game corner in goldenrod city or celadon city.
Next you go to celadon city and next to the game corner there is a house and if you go to the second exchange prize it would ask you for a mr.mime, eevee and porygon.
:)
in leafgreen you get porygon by exchanging 6500 coins in gift centre near gamecorner in celedon city. but in fire red porygon costs 9999 coins.
In Veilstone city go to the top right behind the Pokemon center and talk to the dude for a free porygon =D
you have to get 9999 coins in the game corner and then at the prize place you trade the coins in
You can exchange it for coins at the Kanto game corner. I think its rather expensive.
you can buy it beside the gamecorner
in veilstone city in one of the houses in front of galactic HQ if you have a space in your team a man will give you a porygon find a up grade and let it hold the up grade then trade porygon and it will evolve during trade
ye i own soul silver
I have a lot of SS game corner prizes, too. You could train them, trade them, or taunt anyone who wants them with them.
get the silver wing
You either mean something I don't know about, or you have Pokemon Soul Silver you are cool.
as a prize
evolves porygon into porygon2
train it
the only way is to get porygon in soul silver is GTS or the arcade game, and get 9,999 points
You have to win it at the Celadon Game Corner
If you give it to a porygon an trade it to get a polygon 2
Action Replay, Trading, Migrating. Sorry.
let a porygon 2 hold a Dubious Disk, the same way you gave porygon 1 a upgrade to evolve it, and then trade it
It is Impossiple to catch Porygon 2 in Pokemon soul silver, and heart gold. The only way to obtain Porygon 2 in Soul Silver, and Heart Gold, is to trade a Porygon holding the Up-Grade with a friend, or with yourself. You can find the Up-Grade at the Silpho Co. Building by talking to the people on the first floor.
The up-Grade Item is for Porygon, unfortunately, I don't know where it is. -__-
You can only get them in-game from the Celadon City Game Corner as a prize.
you have to put in the code to get trainer Pokemon and then fight a team rocket sceintist and he has it :)