I cant tell you all the differences but I do recomend Fire Red version
The emerald doesn't exist just the ruby and sapphire, to trade with emerald and leafgreen you need two wireless adapters.
Trade ditto from firered, leafgreen or emerald to sapphire to get one.
trade it from rubi/sapphire/emerald
Trade it from ruby, sapphire or emerald.
Trade it from Ruby,Sapphire,Or Emerald.
of corse you can!
Trade it from ruby, sapphire or emerald.
The emerald doesn't exist just the ruby and sapphire, to trade with emerald and leafgreen you need two wireless adapters.
Combined with the sapphire the ruby and sapphire will allow you to trade with ruby and sapphire and emerald.
You can only mix records between Pokemon ruby, sapphire and emerald not leafgreen.
You can't catch it on Sapphire. You have to trade it from Pokemon Emerald/FireRed/LeafGreen
Pokemon Emerald: Birth Island Pokemon Sapphire: Trade from Pokemon FireRed, LeafGreen, or Emerald. Pokemon Ruby: Trade from Pokemon FireRed, LeafGreen, or Emerald.