easy bit first legenday Pokemon there not only 3 but many but in Pokemon ruby you cants get kyorge because it is only in Pokemon sapphire:
GROUDON:to get this creature you must go to mt pyre near safari zone to get the red orb then go to seafloor cavern after getting dive on mossdeep city then go to sootopolis city it will be a sunny day now steven will talk to you there is a cave called CAVE OF ORIGIN go there down and down you will see gorudon
RAYQUAZA: after you defeat elite four you are able to get rayquaza just go left of pacifidlog just look every you will an island go there (mach bike and master ball or ulrta ball required) there are cracked steps use mach bike to go on cracked floors
REGIROCK,REGISTEEL AND REGICE:even if you did not defeat elite you can capture them . first you need a Pokemon that know dig and put relichant in the first of your party Pokemon then wailord in the last. go to pacifidlog town go right there is a wAVE make sure you alredy have hm dive go there until you see a small diving place dive there go down you will see a braille sign now press w to go up you will be on sealed chamber there go up you are blocked now use dig in front of the brallie sign there will be a cave now the last braille sign read it there will an earthquake. that means you can get them on desert north of dewford and near liclycove city
LATIAS: after you defeat elite four you will be back on your home watch the tv read what says you will be able to get latias evrywhere but make sure you have trapich form the desert put it on first of your party go everywhere in the grasses you see latias
jirachi , lugia and ho- oh is only in emerrald
if you want to cheat to get all legendary Pokemon on ruby you have to play on the computer
There are 6.
You cannot get the Legendary Dogs (or Beasts such as Raikou, Suicune and Entei) in Ruby without either trading for them or cheating for them because they are not available in the wild in Ruby in any way, shape or form. But you can catch it in Pokemon Ruby Destiny-Reign of Legends. But in the original Ruby or Sapphire you can't get it.
The Legendary Pokemon in Ruby are Kyogre, Groudon, Rayquaza, Deoxys, Jirachi, Latios, Latias, Regice, Regirock, and Registeel.
No.
You cannot catch Registeel in Pokemon LeafGreen. This is due to FireRed and LeafGreen being able to trade with Ruby and Sapphire. Pokemon Ruby and Sapphire have the three legendary golem Pokemon including Registeel.
they are the three legendary pokemon of rock, ice and steel. they are know as regirock, regice, and registeel. you can find them in Ruby, Saphire, and Emerald.
Ground
unusual u will get legendary Pokemon
you can find the legendary Pokemon regirock
groudon but in a updated version.
Have a ruby or another sapphire trade you a legendary!