Yes
You do not need to show Rayquaza to anyone in HeartGold. In order to get Rayquaza, you need to show Kyogre and Groudon (from HeartGold and SoulSilver) to Professor Oak. In turn, he will give you the Green Orb. With the Green Orb in hand, you can find Rayquaza in the Embedded Tower.
You don't need to go anywhere with Rayquaza. You needed Groudon and Kyogre to get the Jade Orb to get Rayquaza, but you don't need Rayquaza for anything, It is just another legendary you can have.
i think rayquaza because you need both groudon and kyogre to get rayquaza
You'll need to trade a Rayquaza from Ruby, Sapphire, or Emerald if you want to have a Rayquaza on Leaf Green.
You need to buy a cloud map for 20 credits for Rayquaza
You need all eight badges and you have to have beaten the Elite Four in order to capture Rayquaza.
It is not necessary to catch Rayquaza. It's an optional legendary Pokemon that you can find at Sky Pillar.
You need 7 badges and to have unlocked the 8th. Rayquaza is in Sky Pillar on Route 131.
Rayquaza is in Sky Pillar, you'll need a Pokemon that knows surf to there, and also the mach bike.
In order to unlock Rayquaza in SoulSilver, you need to obtain the Red Orb in from Mr. Pok
no you cant get rayquaza
you need a code