You can't because he is not available in Platinum. You need to trade one from a friend or transfer from Ruby/Sapphire/Pearl
figuire it out yourself
You cannot. You need to trade
you beat red and catch rayqaza
You have to transfer from GBA via Pal Park.
Rayquaza is not available to catch in Diamond. You can, however, transfer one from Ruby, Sapphire, or Emerald.
Yes, But you must have Pokemon of a very high level.
you catch the hoenn legnds kygore groudon and rayqaza
you can't catch him in platinum but in soulsilver or heartgold you can catch him then trade it to platinum.
no just go to him but i am talking about Pokemon emerald
First you have to catch kyogre and trade groudon to heartgold then go to the embedded tower and there is rayquaza
i keep searching the water area in rout four but the relicanths aren't showing up.
how do you catch a mewtwo on Pokemon platinum