One of my favorite things about the GCN is all of the weird connectivity features that it had. You could do cool stuff like link up gameboy players to play multiplayer GBA games on separate screens, tunnel LAN games like MKDD over WarpPipe, have your Animal Crossing character visit a friend's town by giving them your memory card, access special features of F-Zero GX Arcade by bringing your memory card from home and plugging it into the machine, using your GBA to enhance GCN game features like the Tingle Tuner in WW... there were even some games that supported internet rankings through passwords like Ikaruga and fucking Twin Snakes of all things.

You could do so many neat things like this. There wasn't a whole lot in the way of traditional online support outside of a few games like PSO and Homeland, but honestly it felt more special as a result. What it lacked in regular online multiplayer, in made up for with unorthodox connectivity features.