> > IIRC the GC didn't have any provision for this so I guess it's unlikely. > > There were official Nintendo modem and Ethernet add-ons for the consumer GameCube, > but they were pretty rare. (ETA: the GC version of Double Dash even supported them).
Triforce uses MIPS-based AMD Au1500 for networking (like in Sega Aurora), instead of NIC-chip in GC ethernet, so I don't think it will be easy to emulate or HLE it.