Dialga, Palkia, Arceus, and giratinaare not in this game
Palkia is bad and dialga is good
Dialga you can barely hear palkia's.
You can't get Dialga and Palkia in Emerald.
I don't know why they aren't in it, but Dialga and Palkia are not in the Poke Park Wii game. There is a giant mountain carving of them with a waterfall in the Poke Park, but they aren't in the game. Trust me, I've searched EVERYWHERE!
seriously dialga is nothing against palkia belive me i have tried
bayleaf is not on pokepark wii only chikorita is
palkia
Dialga is not as strong as palikia. Dialga is weaker against more types than palkia and palkia has a little better stats than dialga, hope this helped.
Palkia and Dialga are not in Platinum. You have to trade them from Diamond and Pearl.
in dimond/pearl you go back to spear pillar to get them then you give them to palkia/dialga depending on which game youre playing (dialga in diamond/palkia in pearl). in platinum you use them to summon palkia AND dialga to spear pillar.
After Palkia you get Dialga
you can get darkrai celebi mew arceus dailaga and palkia go to the pokepark wii website