Yes it does
Yes you do need a linking cable
A variety of games allow system linking, search for "Game Cube Game Boy Link."
The GBA universal link cable is the standard in linking GBA's together, and it'd be best not to substitute any other cable.
Yes. Various emulators support emulating linking between two consoles. VBALink and NO$GBA support linking Game Boy Advance games, and BGB and TGB support linking Game Boy / Game Boy Color games.
Yes. You need a Gameboy Micro Link Cable AND a Game Boy Micro Converter Cable.
Universal Link Cable hooks Game Boy Advance to another Game Boy Advance.
Game Boy and Game Boy Pocket
You must have the Game Boy Advance Connecter Cable.
No it isn't compatable.
no
You need to buy a link cable designed for Game Boy micro.
if its on game boy advance you will need a link cable you can get 1 from ebay... if its ds its wireless