Palkia is bad and dialga is good
You can't get Dialga and Palkia in Emerald.
palkia
If you have already caught Palkia or Dialga (Palkia-Pearl Dialga-Diamond) then that means that you have already defeated Team Galactic, and you can go to the Pal Park, try to find more legendaries, or anything you want to do, but if not then you have to go to the place where you will catch either Palkia or Dialga and right before you catch them you will encounter Cyrus, the leader of Team Galactic. If you want to know where to find Palkia or Dialga and encounter Cyrus try looking up something like "where do you catch Palkia or Dialga?" or something like that.
You can catch Palkia in Pearl and tranfer Dialga to pearl from diamond.
theres a cave in mount cornet and there will be two poke. balls in there the contain the items you need to get both palkia, and dialga. after you get the poke. balls go to the sphear piller and they will be there.
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.
If you have already caught Palkia or Dialga (Palkia-Pearl Dialga-Diamond) then that means that you have already defeated Team Galactic, and you can go to the Pal Park, try to find more legendaries, or anything you want to do, but if not then you have to go to the place where you will catch either Palkia or Dialga and right before you catch them you will encounter Cyrus, the leader of Team Galactic. If you want to know where to find Palkia or Dialga and encounter Cyrus try looking up something like "where do you catch Palkia or Dialga?" or something like that.
After Palkia you get Dialga