There is no real method of doing so, the only way of getting Rayquaza is to capture it (using a Pokeball) in Ruby/Saphire/Emerald.
the strongest pokeball is the masterball. the masterball can catch any Pokemon out of the 493. it doesnt matter what kind of Pokemon it is, the masterball can catch any Pokemon.
try master ball it is the best olviously
You can use any pokeball unfortunately it has a low catch rate so it can be difficult to catch it even with a ultra ball
he is not a character you pick him up in a pokeball which is one of the items. it is random what Pokemon comes out
You can if you have luck and have Status with 1 HP (or approx.) For more tips on this subject, check the related question below.
You can't find rayquaza in pokemon platinum.
you cant
get it in a trade
To my knowledge, rayquaza is not catachable in white 2 without a downloadable event.
Throw a pokeball to a Pokemon and then press b when it does its third or last move.
throw a pokeball at it
in pokemon emerald