you would have to have a Pokemon gba game in the gba slot with a charmander in it, have beaten your diamond, have gotten the national pokedex, and unlocked the pal park.
You would have to go to a Nintendo event to get a certain item.
Pokemon is one of Nintendo's strongest assets. imagine the money sony would make. sony is Nintendo's rival, and Nintendo would not help them. basically, Nintendo own Pokemon, not sony
i would buy soul silver you should by the diamond or pearl so you have a idea on how to play the game
some people have them although they are from Nintendo events and would probably only trade them for a high level, other Nintendo event Pokemon, or a shiny Pokemon.
After July 15th, the only Nintendo event for Pokemon Diamond or Pearl (or Platinum, too) would be in Japan, where they give out an Arceus, starting July 18th. However, this is ONLY in Japan, and nowhere else.
the best Pokemon on diamond would be arceus but you can only get that from action replay, other than that i think the best Pokemon would be giritina..
In Pokemon Diamond, I would say it is easy to find a Noctowl or Hoothoot after it becomes dark.
You would have to hack your game. But who would be hartless enogh to PWN a pokemon?
i would have to say Dark Rai
It is exclusive to Pokemon Diamond. You would have to trade it.
Unless there is a mystery gift using wi-fi or from a store (would be posted on the Pokemon site) you cannot get mew in Pokemon Diamond