Absolutely. It fills up your Pokedex, and if you're using legendaries on your team, it will help you defeat the Elite 4. Just don't waste your Master Ball on it. You're better off using it on the roaming legendaries (Latios and Latias), since they're more difficult to catch.
After you catch him, you should go to professor oak.
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".
you can catch rayquaza in the sky pillar u should get a master ball from the aqua hideout to catch it cause its very hard to catch him with out one n you need a mach bike to get past those crumbled spaces
Rayquaza isn't in Crystal.
No, you cannot catch Rayquaza in Pokémon Black.
Rayquaza is not avaliable in Pokemon XD
You cannot catch rayquaza in diamond
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.