Go to the Sky Pillar
no you have to migrate from emerald, sapphire, or ruby
you have to migrate it from your emerald game if you have one. so you can't catch it from Pokemon diamond. or ruby and Saphire I woodent i would just by a action replay and get the code for one
if you are talking about rayquayza in Pokemon you need to get it from your game boy emerald game
Rayquayza
On top of sky pillar.
Yes, but you will need a Mach bike. Go into the mountain east of Pacifidlog Town. You'll meet Rayquayza at the top. You can meet Rayquaza the same way in Ruby and Emerald.
there is no way to get one as starter Pokemon unless you use a laptop, computer and use the cheats
Pokemon ruby's version IS Pokemon ruby.
Pokemon Ruby has Pokemon that Pokemon Sapphire does not and Pokemon Sapphire has Pokemon that Pokemon Ruby does not.
ruby
You can only trade from emerald. You have to migrate it from one of the Sinnoh games and then catch it at Pal park.
All The Shiney Pokemon You Can Get In Pokemon Ruby Are All The Pokemon You Can Get in Ruby Any Pokemon Can Be Shiney Even Starters and Legendaries. So There Are 200 Shiney Pokemon You Can Get In Pokemon Ruby.