Well, if you get through the story you should be able to get him. The storyline should lead you to the top of Mount... Whatever it is... And then you will find him and Team Galactic will be there trying to capture him and soon you face Dialga.
At the Spear Pillar
you need the expert belt and give it to dialga. u do?
no. but Dialga is. you can find it in Pokemon diamond near the end of the game
spear pillar
You have to beat the team galactic leader, then dialga comes out.
Spear pillar on Mt. Cornet
It depends if you have Pokemon diamond you find dialga at spear pillar to get palkia you need to trade or use action replay
You can find dialga in the pillar, but I don't know where the pillar is because it was a long time ago when i got dialga.
if you own diamond you find Dialga if you own pearl you find Palkia
If you have a action replay, you can use it. Or if you have Pokemon pearl,you can find Palkia,if you have diamond find Dialga
no, dialga is in pokemon diamond. PALKIA is the one in pokemon pearl
go in by Hearthome city