you have to go to Professor Rowan.
you need to find 210 Pokemon to complete the pokedex
First complete the sinnoh pokedex, 210 Pokemon
Just go to Pokemon platinum central and click on pokedex and it shows you where to battle all the Pokemon in sinnoh.
NOTHING
you have to beat the Pokemon champion and later on in the game you will complete it
There is only one legitimate way to complete the Sinnoh Pokedex. To complete the Sinnoh Pokedex you must trade for the missing Pokemon with Pokemon Diamond, Pearl or Platinum.
complete the sinnoh pokedex and talk to professor rowan.
That pokemon is Azumarill in pokemon platinum in the national pokedex
No. 114 on Pokemon Platinum Pokedex is Tangela.
use complete pokedex cheat !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!l +r+select
You complete the shinho dex first and then you get the national pokedex
No,but there are other cheats to do it.