You can talk to Scott once, and get 2 points, but that's it.
He's in one of the houses towards the back of the frontier
you have to go to the battle fronteir after you beat the game
ground and fighting types
In Pokemon Ruby and Sapphire there is no battle between Kyogre and Groudon. That is only in Emerald version. Instead the legendary pokemon (in your case Groudon) is inside the cave of origin in Sootopolis City.
No. In Pokemon Emerald Version, you can only obtain Pokemon from generations 1, 2 and 3.
Red version was not made to migrate with emerald.
No.
NO you can not play Pokemon emerald in Coloseum.
ya it got couple Pokemon that emerald version doesnt have
No you cannot catch Entei in Pokemon Emerald.
Get it from Pokemon emerald.
You cannot get Regigigas on Emerald version.
Buy it.