yes
Chat with our AI personalities
No, different regions aren't even programmed in the game.
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.
I'm sorry to say that there is no possible way to breed Rayquaza in any Pokemon game on the planet. :(
There are a number of Pokemon that can be bred in the Emerald version of the game. These include Mew and Pichu. The Pokemon must be in the same class and there must be a male and female to breed.
the only way to make sudowoodo breed is get a ditto or trade a Pokemon for sudowoodo in a other game butt make sure if you boy Pokemon to breed you need a girl except for ditto