You can either trade with a friend or request a Dialga in the GTS. It is impossible to capture Dialga in Pokemon Pearl without the Action Replay, but you can get the Pokedex data for it from Cynthia's grandmother in Celestic Town. This Pokedex data would make it possible for you to get Dialga via GTS.
NO!!!!! YOU CAN ONLY CATCH PALKIA ON PEARL you can't catch dialga on Pokemon pearl but you CAN trade it you only get both in Pokemon platinum
You can't catch Dialga in Pokemon Pearl. You'll need to trade for it.
You can catch Palkia in Pearl and tranfer Dialga to pearl from diamond.
You cannot catch palkia in diamond and dialga in pearl but you can catch both of them in Pokemon platinum
no you cant
you cannot catch prime Dialga, only normal Dialga!
It is not 100% possible to catch dialga in Pokemon pearl so basically you cannot catch it however with the AR (action replay) you can Hope this helps! :D
yes you can catch palkia in pearl and also dialga
No you cannot. You can only catch Dialga in Pokemon diamond and platinum. Although you can only catch palkia in pearl and platinum.
In a way. In pearl, you catch palkia. And in diamond, you catch dialga.
no but you can see it from Cynthia's gramma
no you can`t catch dialga in Pokemon pearl you have to trade for him on the gts