I'm thinking about getting that new Game Boy Player so I can play GBA games on my Gamecube. Now here's my question. Can the GBA/GCN cable link go into the Game Boy Player? I want to trade my chaos between games, and I waste too many batterys.
Yes, you can use the GBA with the GC/GBA link, but you can only use the GBA as a controller. You cannot have a cartridge in the system... otherwise the GBP will malfunction. BTW, just buy an AC adaptor so you can plug your GBA into a wall socket. It's worth it when playing games at home.

~ SA Tails