I don't think you can get the blue orb on ruby sorry
you can get in the mt. pyre on route 122.go up to the peak and fight the team aquathen talk to the old man\woman then he\she give you the blue orb ........................
you go to SLATEPORT CITY then youll sea capt.stern having an interview talk to him then...
Mt. Pyre
You can climb to the top of Mt. Pyre and stop team mamga from taking the blue/red orb. Get the remainig orb, and actually in Pokemon ruby is the red orb and sapphire is blue because it said in my Pokemon sapphire/ ruby.
At Mt. Pyre You'll have to defeat team A/M Grunts and an old lady will be waiting at the backand she should give you the Red/Blue orb
mt pyre
The red orb is so you can find Kyogre on Ruby.
talk to the old lady then maxie will appear and he will steal the blue orb and the old will give the red orb
you have to go to mt. pyre. you have to be in a certain part in the game. team aqua should have stolen the red orb when you go to mt. pyre.
Go to the top of Mt. Pyre
Archie will return the Red orb himself. As you are on the top of mt. Pyre, you should return the blue orb too.
summoning groudon
You can only get The Red Orb, (or "Ruby"), in Pokemon Ruby, and I think Sapphire, (correct me if I'm wrong!).
You can only get the Red Orb in in Pokémon Ruby; in Sapphire, you get the Blue Orb, while Archie, the leader of Team Aqua, takes the Red Orb.