They did in "Pokemon movie 10 Rise of Darkrai." They fought
Yes ash meets Dialga and Palkia a few times... Can't remember the episodes Sorry! But I do know that ash meets Dialga and Palkia in the Pokemon movie Arceus and the Jewel of life and actually time travels with Dialga. But that's all I know.
When you come to meet Palkia or Dialga at MT.Corenet
Dialga you can barely hear palkia's.
Palkia is bad and dialga is good
You can't get Dialga and Palkia in Emerald.
seriously dialga is nothing against palkia belive me i have tried
palkia
Dialga, Palkia, Arceus, and giratinaare not in this game
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