yes its easy
first you have to finish the sinnoh pokedex.then you show your work to professer rowan
Finish the sinnoh pokedex and talk to the profesor
They have changed it in the newer games so that all you have to do is SEE all the Pokemon instead of CATCHING all of the Pokemon
NO you just have to get all the sinnoh Pokemon if its diamond or pearl but in platinum there is more...............
you first need to receive the national pokedex, in order to do that you need to finish the sinnoh pokedex.
You have to have national pokedex.
You have to battle every Pokemon Trainer in Sinnoh.
You have to finish the Sinnoh Pokedex and then you get the National Pokedex from Professor Oak when you tell Prof. Rowan you finished the Sinnoh Dex. After that, you can visit Prof. Oak in Eterna City and he will tell you about Zapdos, Articuno, and Moltres. Then, you will have a go at catching them, chasing them around Sinnoh.
how do you et national pokedex in Pokemon pearl? finish your sinnoh pokedex and either proffessor rowan will give you the national pokedex, or prof. oak
You go to Sandgem town then you go to Professor Rowan's Pokemon Research Lab.You have to talk to him and then Professor Oak will come in and he will give you the National Pokedex (But first you needed to have finish the Sinnoh Pokedex.) P.S When you talk to Professor Rowan he will give you the Pokeradar.
there is no fast way without the use of a action replay
finish sinnoh pokedex