Professor Oak asks you to obtain both Red (Pokèmon SoulSilver) and Blue (Pokèmon HeartGold) Orbs, because they summon Groudon and Kyogre. If you trade a Groudon/Kyogre into SS or HG so you have both Pokèmon, you will obtain the Jade Orb that summons Rayquaza to the tower where you caught Groudon or Kyogre, they MUST both be in your party for Rayquaza to appear. All 3 are very annoying to catch, so lots of ultra balls/master ball will help. Groudon and Rayquaza both have a habit of using the HP restoring move, rest.
you must restart the game
Speak with Professor oak he will tell you about them and then they come
First, get the National Pokedex. Then,talk to professor oak in eterna city.(he is at the bottom left corner of town as far as i know lol)
there is no professor oak in ruby and sapphire
Professor oak is always in his lab in pallet town.
He tells you to visit him so he can give you pokemon.
No, Ash didn't send his Gible to Professor Oak.
Finish the first one and then bring it to professor oak then he will give it to you.
no,professor Oak is not in x and y, he is there in indigo
Pikachu was in the Poke Ball that Ash had received from Professor Oak.
"How do you catch Professor Oak" You can't! He's a person NOT a pokemon. Possibly with the Action Replay
After catching Kyogre, obtain a Groudon from a friend with Pokemon SoulSilver. You only need the Groudon temporarily. Talk to Professor Oak with both in your party, and Professor Oak will give you the Jade Orb to catch Raquayza.