You'll need to defeat the Elite Four and Champion Cynthia, caught Giratina, then talk to Cynthia's grandmother in Celestic Town where she'll talk about summoning Dialga and Palkia. After she's done talking, you'll need to go through Mt. Coronet and reach to the place where you are nearly at the peak of the mountain (where there is snow), then use Rock Climb up a slope and enter a cave entrance. Look for the water, then use Surf and Waterfall to reach the top to see another entrance. When you go inside you'll find the Adamant Orb and the Lustrous Orb. After obtaining them, go to Spear Pillar, where you met Giratina and Team Galactic at first, and a blue and a pink portal will be floating at the corners of the place. Make sure to save before you interact with the blue portal, where Dialga will come out to attack you.
it's impossible, and I have action replay
in platinum you can get to disortion world and you can get both dialga and palkia.you can get giratina too.
catch it in spear pillar w/ the adamant orb. Dialga appears at Level 70
In Pokemon Diamond, Pearl, and Platinum, you cannot 'recatch' Dialga, but you can have multiple attempts if you save before battling Dialga. In Pokemon HeartGold and SoulSilver, when you do the Arceus event, you automatically obtain your choice of Dialga, Palkia, or Giratina.
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It sure is
Yes.
In Diamond and Platinum, Dialga is in Spear Pillar. If you want to get Dialga in Pearl, trade Dialga from Diamond.
If you beat Dialga and Dialga faints, you can no longer catch it.
No you cannot. You can only catch Dialga in Pokemon diamond and platinum. Although you can only catch palkia in pearl and platinum.
Palkia and Dialga are not in Platinum. You have to trade them from Diamond and Pearl.
it's impossible, and I have action replay
At spear pillar.
No.
After Palkia you get Dialga
yes