you need groudon and kyogre
get kyogre and groudon then show it to professor Oak then he will give you the green orb.then go to the ennabled towwer its near the safari gate
Migrate raquaza
get heartgold beat it get kyogyre and get RAQUAZA
yes but u have to get groundon from soulsilver and kyogre from heartgold
first, you have to get both Groudon and Kyogre in your party. then, go professor oak and he will give you an orb. go to the embedded tower in the ruins off of Cianwood. Raquaza should be there. ps. Raquaza won't be there if you traded Kyogre or Groudon from Ruby or Sapphire. they have to be from Soulsilver or Heartgold.
It is virtually impossible. (Unless there is some cheat code I don't know of.) You have to get the Blue and Red orbs in Heartgold/Soulsilver. (Trust me. I'm a complete Pokemon Master. And Raquaza is spelled Rayquaza.)
Once you get Groudon, you have to get Kyogre from a Heartgold game and then talk to Professor Oak. The Rayquaza event will happen after that.
You get it at the burnt tower in ecuteak city. However, you must have both groudon and kyogre in ypur party when you talk to professer oak.
If they weren't in the original gold and silver, they probably won't be in those ones.
Raquaza
After you caught Groudon from the Hidden Tower talk to Mr. Pokemon (First you have to have heartgold to) Youhave to have kygro in heartgold make that person in heartgold trade, And when your soulsilver person has kygro then talk to Mr. pokemon he gives you a green orb and then go back to the hidden tower. go inside and there is rayquaza! You have to have a pokemon higer then lv. 50.
Catch raquaza
after you get 16 gym badges go to profeser oak in pallet town and he'll give you the blue orb to catch kioger and I don't know where but once you have caught kioger show it to profeser oak and he'll give you the green orb and go back to the same place you caught kioger and raquaza should be there