see every Pokemon
yes.
Go to the underground and get a fossil by mining
you have to go in grass and use it but dont get on your bike
I'm pretty sure you can't. sorry :(
In Pokemon Platinum Version, there are two Pokedex'es, the Sinnoh Dex, and the National Dex. In the Sinnoh Dex, the 151 Pokemon is Manaphy. In the National Dex, the 151 Pokemon is Mew.
151 Pokemon are in the Sinnoh dex
you have to do the whole Nintendo event thing or use an action replay
Pokemon 1-150 national dex 1-386
There are 210 in the Sinnoh Dex, 493 in the National Dex {including EVENT Pokemon}
The last Pokemon on the national dex is Arceus.
You have to have seen every Pokemon in the regular dex.
The sinnoh dex has 210 pokemon, and the national dex has 493 pokemon. It has an entire 664 pokemon (I think)