It is in Cave of Origin. Make sure you bring Electric Pokemon, because Grass could get easily fainted from its Ice Beam. Also make sure you have a Pokemon with the move Thunder Wave or Hypnosis, anything to make it Paralyzed or Asleep. You should attack it first with one of your weakest moves. If it takes really little HP then you do a bigger attack. Keep doing this until its HP is around yellow or red. Do not Confuse it, Poison it, or Burn it. It'll get itself killed. You should bring Ultra Balls, Timer Balls, or Net Balls (I'm not sure if it exists in R/S/E yet by then.) and if the battle seems long, then use one of the Timer Balls.
Hope this helped!
Kyogre Is Not Avalible In Pokemon Ruby. Just In Pokemon Sapphire/Emerald
regice regirock registeel latias kyroge rayquaza
Go to sotopollis and then to the cave of origin(this can b only done after beating Archie in the underwater cave where u found the submariene.)
you need the blue orb which is only obtainable in heartgold
How do you catch latios in Pokemon sapphire
There are many Pokemon you catch that are similar in sapphire and emerald but there are many Pokemon emerald can only get and not sapphire.
You can't catch a ditto in Pokemon Sapphire, but you can trade it from Pokemon Emerald/FireRed/LeafGreen.
You can't catch Ditto in Pokemon Sapphire. You'll have to trade it from Pokemon Emerald/FireRed/LeafGreen
You cannot catch Lucario in Pokemon Sapphire since it wasn't created yet.
Sorry But as much as i would love to catch it, you can't catch in Pokemon sapphire :(
Groudon is not available in Sapphire. You have to trade it from Pokemon Ruby, and there is only one Groudon in the whole Ruby game.you cannot catch groudon in sapphire, but you can have it by transfering it from Pokemon ruby or from Pokemon emeraldyou cannot catch groudon in sapphire, but you can have it by transfering it from Pokemon ruby or from Pokemon emerald
You can't catch Bellsprout in Sapphire. You have to trade it from LeafGreen.