Legend of Zelda: Four Swords Adventures
https://lparchive.org/Legend-of-Zelda-Four-Swords-Adventures/
Released in 2004 for the Nintendo GameCube, Zelda: FSA made use of the wack-ass peripheral known as the GCN-GBA link cable. By hooking these cables up to your Game Boy Advances, you and three friends could play through a cooperative adventure through a land of shittily scaled sprites and bizarre graphical effects known as Hyrule. At the end of each level, everyone gets judged by the game and their heroic cohorts and through a variety of criteria (mainly money), there's a winner for each level. Cooperate and compete. Nintendo's done that a couple of times now.
Zelda Four Swords + 5 Gamecubes + 5 TVs = Sweet Zelda Party - racketboy.com
http://www.racketboy.com/retro/nintendo/gamecube/2008/03/legend-of-zelda-four-swords-5-gamecubes-5-tvs.html
"Zelda Four Swords Adventure for the Gamecube is a killer party game, but who wants to play on a GBA? We fix this issue with a killer multi-Gamecube, multi-TV setup."
POWET.TV ‽ GameCube: A Video History That Never Was
http://powet.tv/2006/08/06/gamecube-a-video-history-that-never-was
Lots of GameCube videos of games never released
Buy MAX Drive Pro (GameCube) In Stock
http://us.codejunkies.com/shop/product.asp?ProdID=297&c=US&cr=USD&cs=$&l=1&r=0
"MAX Drive Pro is the ultimate solution for the homebrew GameCube programmer."
Gamers Reports - TeamXecuter ICEDCUBE Gamecube Replacement Case
http://gamersreports.com/index.php?action=reviews&sid=17
"This happens a lot, Xecuter might not always be the first with an idea, but then they turn around, grab an idea, run with it and give us back something better. "
Gamecube Viper Chip in the Gamecube category
http://www.modchipman.com/gamecube-viper-chip-p-380.html
"Only 4 wires, and compatible with all 3 revisions of the Gamecube (A, B and C) both NTSC and PAL, the Viper chip is a great way to load homebrew or imported games onto your Gamecube."