What you have to do is catch all the Pokemon from all the other regions(complete national dex.
no but if you catch all the hoenn pokemon you can catch jotho and kanto pokemon
Unfortunantly you cant go to other regions in Pokemon diamond and pearl. its not like leafgreen,firered,gold,silver and crystal version where you travel to different regions. You can't, Sinnoh is the only region available in the game.
As in, can you catch them inside the Hoenn Region?
No you cannot go to other regions in Pokemon Pearl or Diamond version but in Pokemon Heart Gold and Soul Silver you can go to the Jotoh region.
No, there are no other regions in Pokemon Diamond.
What you have to do is catch all the Pokemon from all the other regions(complete national dex.
No.
catch other Pokemon
no but if you catch all the hoenn pokemon you can catch jotho and kanto pokemon
You can use a Action Reply codes to catch other trainers pokemon.
you have to migrate it from emerald to diamond with i think 6 other Pokemon then catch it in the pal park
You can't, it's impossible!!
Giratina(Ghost & Dragon)
Unfortunantly you cant go to other regions in Pokemon diamond and pearl. its not like leafgreen,firered,gold,silver and crystal version where you travel to different regions. You can't, Sinnoh is the only region available in the game.
As in, can you catch them inside the Hoenn Region?
you can't catch any other forms of rotoms other than the normal one on diamond and pearl, only in platinum.