i know that you have to get the ruby and the sapphire to trade with colloseum, but do you need the game link cable of wirless adapter? i want to send my legendaries to leafgreen, but i need to know which to get.
I haven't heard that it's possible to do Colloseum o FireRed/LeafGreen. You could try Colloseum to Sapphire/Ruby then to FireRed/LeafGreen.
Either way, you'd need a GCN cable