First you have to beat the elite 4 and champion. Then you have to make sure that you have at least seen if not caught all the Pokemon in sinnoh. At that point you would have seen most of them. the Pokemon you are likely not to have seen are Rotom Mesprit Dialga and a few others. To get Rotom go into old chateau in eterna forest at night and find it in a TV. to see mesprit surf in lake verity to the small island and go inside and talk to it. to see dialga you will have to go to celestic town and talkto cynthias grandmother in her home. she'll show you it in a book
Capture all the Pokemon On the National Dex.
pichu in Sinnoh Dex exeggutor in National Dex
Regional dex-unown. National dex-tangela.
the Pokemon for national dex number 124 is jynx and for sinnoh dex number 124 the Pokemon is azurill.
complete the pokedex then go to professor rowan and he will give you the national dex
first you need to get the national dex to do this you need to see all Pokemon in sinnoh to compleat the national dex see all Pokemon on the poke dex
The good news is that you don't have to catch all the Pokemon, but you only have to see all the sinnoh Pokemon to get the national dex:)
yes when you get the national dex
There are 151 Pokemon until you get the national dex
goldeen (or rapidash on the national dex)
nothing, unless it is just the sinnoh dex, then you will get the national dex
Rampardos is a Pokemon special to Pokemon Diamond. The only Fossil you will get before you get the national dex in Pokemon pearl will be sheildon. After you get the National dex you will get Fossils from other games...But still not a cranidos. Hope that helped :3