Beat Wallace/Steven
Raichu
there are a total of 202 pokemon
Have to beat the elite four.
Chimecho
weedle
420
if national pokedex you go to the other gym leaders if normal pokedex you to the left at oldale town
Yes, if you trade it you will automatically get the national pokedex on Pokemon Emerald
All 386 pokemon from Bulbasaur to Deoxys
the answer is on the website serebii.net/pokedex/dp.
Just catch the most Pokemon you can ;)
hoen region and when you beat the elite for the national pokedex