Def Jam

Does the gamecube emulators play Def Jam well?

How do you use Visual Boy to send characters from Golden Sun to Golden Sun 2?

i haven't visited the site in a while but i don't think that GC emulators are plating games at full speed or at a playable speed.
and about the golden sun question thier are some emulators with link support but i've never used them so i would not know about that case.