You could collect all the Pokemon is shiny version, or get the Pokemon so that the summary is in a different language.
Or you could trade and get an army of one Pokemon, that'd be cool.
:)
It doesn't really make sense!
you need two ds systems to do that.
First, you have to trade your Pokemon Colosseum with Ruby/Sapphire (And I think Leafgreen/Firered too) Once you do that, you have to get the Pokemon to leafgreen/firered, and then migrate them to Pokemon diamond/pearl. For this though, you have to had beaten the games.
You go to the 8th Gym, which is in Sunyshore City. Not exactly you can't go there until after you've beaten or captured the legendary of the game depending Dialga>Diamond or Palkia>Pearl or Giratina> Platinum, that are on top of Mt. Coronet. Hope i helped!
after rotom you should have beaten the gameYou have to trade rotom from Pokemon diamond or gold.you dont you trade it from platinum diamond or peralYou cannot catch Rotom in SoulSilver. You need to trade from Diamond, Pearl or Platinum.
trade diamond from Pokemon diamond onto Pokemon pearl
you beat all of the gyms that you havnt beaten yet, coincidence that im currently playing diamond!!!
You trade Magmar from Pokemon pearl,diamond,or platinum to ether Pokemon pearl,diamond,or platinum.
In diamond and pearl, you must have seen all of the 150 Pokemon (seen, not captured) in you're Sinnoh Dex.
THE POKEMON THAT ARE NOT FOUND IN DIAMOND AND PEARL ARE:MANAPHY PHIONE
You can get Palkia in Pearl, otherwise you have to transfer Palkia from Pokemon Pearl to Pokemon Diamond.
diamond