Game Boy Player
A hardware accessory that attached to the bottom of the GameCube through its high speed parallel port. This allowed Game Boy, Game Boy Color, or Game Boy Advance games to be played on a TV with Gamecube controllers or a GBA. Also required was the included Game Boy Player Startup disc that went in the Gamecube's disc drive.
GameCube Controller Adapter
The GameCube Controller Adapter is an official adapter for Wii U that connects to the console via USB to support the usage of GameCube Controllers on the console.
Game Boy Printer
A device that was normally used in conjunction with the Game Boy Camera, but could also be used to print snapshots from within specific games, usually as stickers.
Game Boy Advance Link Cable
Connect two Game Boy Advances together for head-to-head action!
(DOL-003) The default controller for the Nintendo GameCube.
The GameShark brand was originally used to market Datel's Action Replay devices in North America, but now is a MadCatz-owned brand used to sell save game editors.
The Game Genie is an accessory for several platforms that facilitates the hacking and activation of otherwise inaccessible cheats and content.