you cant get them unless you migrated or you usec the toys r us event
Chat with our AI personalities
You can't only in Pokemon Platinum unfourtunatly.
i dont believe you can but to get more pokemon words just find the pokemon
there is not one you can always just unlock it when you go there?!
Trade the event Regigigas to Pokemon Platinum then get the national pokedex and it will unlock certain events in the game.
You cannot unlock the off-limit room of Trophy Garden in Pokemon Pearl, so as Diamond and Platinum, even though you defeated Elite 4. It is just a decoration.