mix records with other people. find their secret base and talk to them. they will battle with the Pokemon they had when the records were mixed.You can only battle once every 24 hours.
Secret power is a move that you can use in and outside battle. You can use secret power to create bases in a indent in a wall a big bush or a big tree. You can also use it to attack Pokemon in battle.
You can put plants in your secret bases in emerald
battle tower
Loose trees, dents in rocks, and piles of grass are where you can build secret bases in Pokemon Emerald Version.
There are secret bases in Pokémon Ruby Sapphire and Emerald. In Diamond Pearl and Platinum, you have underground bases.
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they are secret bases you need to teach a Pokemon secret power first to use them
Those are secret bases to create one use the move secret power.
Those are secret bases to create one use the move secret power.
Secret power can make secret bases for you find a tree or bush or indent in a wall then use secret power on it and inside is a base this is a place where you can decorate and customize your own place! Also if you mix records with other ruby and sapphire and emerald games you can battle other peoples secret bases! Secret power also can inflict opponents Pokemon with poison, flinch, parlyze, sleep, and can lower stats like speed.
No there isn't. The cave is in Pokémon Emerald
Other than secret bases the best spot is the Pokemon league.