You would have to get a groudon from someone else if you wanted one before you beat the game.
You can't catch Groudon in Sapphire. Groudon is avaible only in Ruby and Emerald.
Probably trade with Ruby.
Yes.
No. -.- You can capture it without defeating them.
Nintendo Wi-Fi
you can`t catch kyogre or groudon or both of them without linking them from sapphire, ruby or emerald version.
Legendary pokemon you can find in emerald are (without cheats & events) Rayquaza, Groudon, Kyogre, Regirock, Regice, and Registeel.You can get latios OR latias in pokemon emerald too.rayquaza,kyogre,grouden,jirachi,deoxys and i think mew
Get Pokemon emerald and then you can get all three without cheats or trading
Regirock, Regiice, Registeel, Rayquaza, Kyogre, Groudon, Latios or Latias
Not without cheating. Ruby can get Groudon and Rayquaza, Saphire can get kygore and rayquaza, but only Emerald can get them all.
Only on emerald after beating the elite4 can you get a houndour, However the only other possible way to get houndour is from Pokemon colosseum and trade it to firered then trade it to ruby or sapphire or emerald.
it is easy just keep beating the elite four