You need to go to Spear Tower
yes just get the orbs in Mt. Coronet after completing the Sinnoh Dex
Capture palkia in peral, dialga in diamond, and giritina in platnium
Go to the spear pillar once again, and there, you will see two vortexes, one blue and one pink. Enter the blue for Dialga, enter the pink for Palkia. You don't have to choose between them, luckily. You can catch both.
after u get the national dex and catch dialga and palkia and the three lake Pokemon talk to oak in eterna and they apear on ur map
After you catch Giratina, go to Celestic town and back to the Spear Pillar. A blue or purple cristal will be floating will be seen. The blue or puple crystal will be Dialga or Palkia. To catch the next one leave Mt. Cornet and re-enter Spear Piller. The next Dialga or Palkia will be there. I only say Dialga or Palkia because I don't remember which one comes first.
arceus. you have to trade over from either pearl, diamond or platnium, palkia, dialga and giratina to either heartGold or soulSilver.-RR14
After you beat the elite 4, go to celestic town and talk to the elder. Bring both the adamant and lustrous orbs to spear pillar.Plz send feedback!
no but you can trade with people who soul silver platnium ect.. you should look at this site serribii.net
Dialga and Palkia. You have to battle the Galactic Leader and then catch Giratina. They will be waiting at the spot where you catch Dialga in Pokemon Diamond. You will battle Dialga and then Palkia, both of them being at lvl 70. Be sure to bring some ultra balls or master balls if you have any. Hope this helps!
there is no event to get arceus. all you have to do is trade palkia, dialga and giratina over from platnium to either heartGold or soulSilver. then you have to go to the embedded tower somewhere deep in mt.Silver. -RR14
you cant catch it in platnium but you can trade it