first you have to catch and evolve all the Pokemon in ruby. then if you want to complete the pokedex, you have to trade for all the other Pokemon
see http://bulbapedia.bulbagarden.net/wiki/Pok%C3%A9mon_Ruby_and_Sapphire_Versionsfor more info
Pokemon ruby's version IS Pokemon ruby.
if you want to cheat to get all legendary Pokemon on ruby you have to play on the computer
how to get raqueza in littletown in Pokemon ruby version
This legendary Pokemon can only be acquired on Ruby Version through trade from Sapphire Version or Emerald Version.
Verdanturf town.
Go to the elite 4
Use pokeballs.
You can't get one at all in Ruby. You'll have to trade one from FireRed/LeafGreen.
If you finish ruby get another version of pokemon.
No. Pokemon Ruby was only released for the Game Boy.
there are lots so i cant tell u all of them but there is a lot (hope this helps)
no