You need to transfer the Special Pokemon Arceus obtained through an event. Then you head to the ruins and you'll gain access to a new area.
in MT.Mortar
You can't GET them, you have to trade them from pearl, diamond or platinum.
nothing, you just have three legendary Pokemon
its when you get a dialga palkia or giratina egg
I think you have to get arceus if you want dialga.If you have arceus go to the ruins of alph and a guy will show you if you dialga,palkia,or giratina.
Yes you can get Arceus if you have a Pokemon platinum,diamond,or pearl and you have giratina dialga and palkia trade them to your Soulsilver and then a mountain will appear somewhere and then Arceus will be in there
Giratina is good and dialga and palkia are bad because they get in a fight
I think it is Palkia
giratina
Yes, in the Shinto Temple he gives you either a Dialga, Palkia, or Giratina egg.
arceus. you have to trade over from either pearl, diamond or platnium, palkia, dialga and giratina to either heartGold or soulSilver.-RR14
palkia,darkrai,dialga and giratina palkia,darkrai,dialga and giratina