pokemon platinum complete national pokedex?

Pokemon Platinum – Full National Pokedex

so that How do you complete the Platinum Dex? You can obtain the National Pokédex in Platinum by encountering every Pokémon in the Sinnoh Pokédex. … Once the Sinnoh Pokédex is complete, talk to Professor Rowan and he will upgrade it to the National Pokédex.

Let’s Play Pokemon: Platinum – Part 49 – National Pokedex