Up-Grade is a peculiar item in the Pokémon series, primarily defined by its unique role in the evolution of the Pokémon Porygon. Introduced in Generation II, the Up-Grade is a digitally-themed item that, when held by a Porygon traded between players, triggers its evolution into Porygon2. This item showcases the game's innovative mechanics, as it integrates the concept of digital evolution within its gameplay.
Held by Porygon: Evolves the holder into Porygon2 when traded.
Short Effect: Traded on a Porygon: Holder evolves into Porygon2.
Held by Porygon: Evolves the holder into Porygon2 when traded.
Fling Power: 30
| Generation | Game Index |
|---|---|
| Generation III | 218 |
| Generation IV | 252 |
| Generation V | 252 |
| Generation VI | 252 |
| Generation VII | 252 |
| Generation VIII | 252 |