You don't destroy it. You can either catch or defeat Girantina at the end of the world.
disortation world
catch one.
it is Tentacruel
you cant. you have to go to the platnim event
You can't
you have to trade him and trade him back
Beat or catch Girantina
snowpoint city
No, only pass the part with Giratina. You don't have to catch it. U can still catch giratina in disortation cave.
you get it for a man in the cave before the first gym
In theory, you can't destroy something and then destroy it again...
No but transfer the lushus orb from Platnim Put it on lugia and Shadow lugia!!