Battle them and Beat them.
You, talk to them, and then fight them. And win.
Arceus is not on battle frontier!
you have to beat the battle frontier brain
as in battle frontier
No, Pokemon Sapphire Version does not have a Battle Frontier. However, Pokemon Emerald and Pokemon Platinum do have the Battle Frontier.
There is no Battle Frontier in Red Version.
Get all of gold symbols from Battle frontier.
4D2A5A81 4E69A107 Battle Frontier
As you get through the battle frontier you receive Battle Points, these points allow you to get items that are very hard to find in the game, you may exchange your points at the battle shops in the battle frontier area.
Pokemon Ruby and Pokemon Sapphire do not have the Battle Frontier, instead they only have the Battle Tower. It was not until Emerald version that the Battle Frontier was added to the game.
at the battle frontier there is only smeragle 40-50 and a sudowoodo on 50 actually sudowoodo is lvl 40 at the battle frontier