yes you just need Pokemon ruby,sapphire, or emerald and if you have him on it you can send him over to diamond by migrating after passing Pokemon diamond and having the national pokedex hope this helps got any other questions just send me a message at tupacfan1001@gmail.com
if you want a rayquaza go to your PC (in Pokemon) before that use the R4 or action replay put hoenn legends
Rayquaza can only be found naturally in the Hoenn region, so the Sinnoh region (which is where these games take place) will not have Rayquaza. You must trade, cheat, or live without him.
Nope.
No.
It is possible to use an Action Replay code to get a shiny Rayquaza that appears to have been caught at lvl 70. This Rayquaza would not be considered legit.
Action replay
u cant
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)
No
no you have to get is from an action replay or go to a Pokemon event
Not Possable
It is Impossible without an action replay