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Steps for Diamond and Pearl: Get a Porygon either migration or Mr.Blacklots garden in Hearthome City. Get an up-grade from Prof. Oak in Eterna City. Then trade Porygon holding it and you get Porygon2. Give porygon 2 the DUBIOUS DISK as a hold item. You get a Dubious disk near the Battle Zone. Trade whilst hold item is DDisk and Porygon-z
Steps for Platinum
Obtain lv 25 Porygon in Veilstone City from a random man. Get up-grade in eterna city from Galactik Warehouse. same trading method. Then DDisk is in another Galactic warehouse and do the same trading method
What else can I help you with?
At what level does Pyrogon evolve?
porygon evolves by trading it with a upgrade then trade with dubios disk. enjoy your porygonZ!
How do you evolve Porygon without trading?
You cannot. Trade with UpGrade to get Porygon2. Trade Porygon2 with Dubious Disk to get PorygonZ, but you have to trade either way.
How do you evolve Porygon2 to Porygonz?
You have to trade the Porygon 2 holding an item called "Dubious Disk" to a friend. It should evolve like any other trade-evolving Pokemon.
What level does Porygon evolve at?
you have to trade it while its holding an up grade item
What does a dubious disk do in Pokemon HeartGold?
It evolves Porygon into Porygonz.
