What Pokemon were you trying to trade? I know that you're supposed to be able to trade all 386 Pokemon from one to the other! Try a GBA connector cable instead of wireless.
You dont!
i dont think you can trade from sapphire.
Yes, I'm pretty sure, but you will need to gameboys and a connector cord
To catch Mewtwo in LeafGreen or FireRed no. To migrate Mewtwo from LeafGreen or FireRed to Diamond/Pearl/Platinum yes you have to have it in Diamond/Pearl/Platinum.
I dont think it's available to ruby but there is for leafgreen, firered, and I think emerald.
Pokemon with high levels and good stats people that say legendarys dont know what their talking about:)
You dont :) you gotta trade it if you didnt choose it as your starter
you dont you have to migrate it or trade it
i really dont see a point in it but just trade.
u dont get a starmi in fired u have to trade.
actually i dont want to say this but NO
i dont believe so because the wireless adapters were made for leafgreen and firered which came out after RSE