you cant.you can only get garantinas origin form on platinum
You can't get origan form in Pokemon pearl. Sorry...
Omastar, the evolved form of omanyte
You get it from Pokemon Ranger, from Fiore or Almia, in the form of an egg.
walrein, the evolved form of sealeo.
you can't
no not at all
You cannot change his from in Pearl only Platinum.
You cannot trade your Pokemon form Pearl to LeafGreen, only from LeafGreen to Pearl; it is one way only.in celedon city in the small house in the west
In Pokemon pearl you should raise a piplup, shinx, starly, riolu, the first form of rampardos and a gastly HAPPY TRAVELLING
Level up.
It is only found in that form in the new Platinum.
You can't catch whismur in Pokemon pearl or diamond but but you can catch its evolved form loudred with the pokeradar on the top of mt coronet.