Does either MR.Mime or Porygon evolve. And if so when?
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Porygon evolves.Trade it while it's holding the Upgrade item,and it'll evolve into Porygon 2.
Mr. Mime,however,doesn't evolve.
Mr. Mime does not evolve, but Porygon does.
You must trade Porygon when it is holding the item called Up-Grade, and it'll evolve into Porygon2.
Mr. Mime- no.
Porygon- yes.
You must get an item called Upgrade from Silph Co., give it to Porygon, then trade it. Trade back, and you have got a Porygon2!
mr.mime does not evolve but porygon will evolve if you trade him will holding and item called upgrade
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