The Gameboy Attachment Thing
 

I sound like a complete imbecile, but I have no idea what it is actually called. Isn't there a thing where you cna connect your Gameboy Advanced to a Gamecube? I can't play GBA games regularly, but if I ever really get a Gamecube, that is something I'd be interested in.

Gameboy Player. It's a dock that you attach to the bottom of your Gamecube. It has a GBA port on it for playing Gameboy Advance games. They cost about $40.

I don't have a Gamecube yet. I probably won't for some time since I'm broke. Or will be very shortly. I'll be the happiest guy without any money to ever live.