When does the battle frontier open in HG?

Question

What point in the game do I need to be at?

Answer 1

After you defeat the elite four for the first time.

Comments

thanks

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no problem

Answer 2

For the Battle Frontier to open you must beat the game.

Source : Experience

Comments

I'll give you an upvote, but you have to beat the elite four, not the whole game

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no, i meant the main game (gyms and E-4)