There isn't a "secret combination" of buttons, you only have to keep trying with Poké Balls, or use a Master Ball.
GO to route 130 , and catch Rayquaza. GO to route 130 , and catch Rayquaza. GO to route 130 , and catch Rayquaza.
You can catch Rayquaza in the map called "Blackthorn City".
Rayquaza isn't in Crystal.
No, you cannot catch Rayquaza in Pokémon Black.
You cannot catch rayquaza in diamond
Rayquaza is not avaliable in Pokemon XD
You cannot catch a Rayquaza in Pokémon Black, you will have to either transfer it from a previous game or you can also trade with someone for a Rayquaza.
Yes.
no
It is not necessary to catch Rayquaza. It's an optional legendary Pokemon that you can find at Sky Pillar.
You cannot catch rayquaza in fire red you must trade from either ruby or sapphire.
Ultra ball.