How do you get all the starters in Pokemon emerald?

Answer 1

you get either Pokemon sapphire or ruby and you link and restart the whole game on ruby or sapphire pick out a Pokemon and get to a Pokemon center and link to the other gba and trade for another Pokemon and repeat like twice

Answer 2

You can only pick 1 Starter Pokemon in Pokemon Emerald however in order to get all of the Starter Pokemon you will need to trade with another game.