No, it can only be found on emerald or ruby and Sapphire
You need to for the National Pokedex, but not the Sinnoh Pokedex.
In Pokemon Diamond and Pearl you need the National Pokedex to get Magnemite. In Pokemon Platinum you don't need the National Pokedex to get Magnemite.
you need the national pokedex to get eevee
You do need the national pokedex for the Pokemon modifier. the Pokemon modifier uses the national pokedex numbes. you can not use the sinno pokedex.
Yes you need the national pokedex! And to obtain the national pokedex you need to defeat the elite four.
No,you need to defeat the elite four first, then go to proffeser rowans lab and he will give you national pokedex.
you need 150 Pokemon to get the national pokedex
You need to get the national pokedex to get national pokedex you need to get all the Pokemon and you need to talk to daun's sister
well you need to have all your Pokemon in your pokedex and when you get your national pokedex you will get breed
You need a national pokedex. You get a national pokedex by filling your Sinnoh pokedex, and then going to Professer Rowans lab. Professer Oak will upgrade your pokedex so you will get the national pokedex. The guys will get out of your way then.
You do not need the national pokedex in platinum, simply talk to Bebe in Hearthome city
you need to complete the sinnoh pokedex then speak to prof rowan and prof oak will come and give you the national pokedex for your success