You can't. Giratina wasn't available until Generation 4, while Ruby is a Generation 3 game.
There is no Giratina in emerald ruby or sapphire. The only games that you can CATCH one is in diamond pearl and platinum.
you can't catch a spirit from giratina.
giratina is at lv 70.
first you have to battle all the elite four after that you can catch it..............but i don't now where to catch giratina
No, only pass the part with Giratina. You don't have to catch it. U can still catch giratina in disortation cave.
Yes, you do have to save them in order to catch Giratina.
you find it at giratina lake
You can't catch giratina in soul silver, you can only catch him in diamond, pearl, or platinum.
throw a pokeball
no
You need to catch Giratina or beat Giratina after that go to Lake Verity. You need HM Surf...
You walk into the portal Giratina leaves behind after capture.