You can't without hacking. or in sapphire ruby or emerald.
You can't get Rayquaza on Pokemon Pearl. You have to MIGRATE it
You can't find Rayquaza it in pokemon diamond, pearl, and platinum. You just migrate it in Pokemon Emerald, ruby and saphirer
You cannot catch Rayquaza in Pokemon Pearl. You will have to have caught it on Ruby/Sapphire/Emerald and migrated it to Pearl. Then you have to catch it at Pal Park.you cant catch rayquaza in pearl. you can only migrate from ruby,sapphire,or emerald or use cheat with action replay. you have to migrate it from ether Pokemon rudy/sapphire or emerald To get a Rayquaza in Pokemon Pearl you will need to trade with Pokemon HeartGold or SoulSilver. To access Rayquaza in Pokemon HeartGold or SoulSilver you need to show Professor Oak a Kyorge and Groudon. This will give the player a Jade Orb that can be used at the Embedded Tower to access Rayquaza in Pokemon HeartGold and SoulSilver. This Rayquaza can be captured and then traded to Pokemon Pearl.
No sadly there is no way to catch Rayquaza in Pokemon pearl diamond or platinum except use action replay, migrate it of your gba (if you have it) or use the world trade center thingy in jublife (if you have internet)
you can not get rayquaza in dimond, pearl, platinum, black, and wite. you can get it in gold, silver, heart gold, soulsilver and emereld
you cant find rayquaza on diamond or pearl its from Emreld
you have to migrate from Pokemon emerald or trade in the GTS
You will need to migrate from Pokemon Ruby/Sapphire/Emerald.
You can't find rayquaza in pokemon platinum.
You can find Rayquaza in map 13.
There is no such thing as a "super form" for Groudon, Kyogre, and Rayquaza, and there is no way to obtain these Pokemon in Pokemon Pearl without the use of an external cheating device. However, you can capture these three Pokemon in Pokemon Ruby, Sapphire, or Emerald and import them to your Pearl game through Pal Park on Route 221.
You have to trade Kyogre from Pokemon Sapphire, and you must trade Rayquaza from Pokemon Emerald.