How to Connect a GameCube Controller to the Wii - Howchoo
Wii U GameCube Adapter - iFixit
Request] GameCube controller mod to enable use on home screen to select channels or to start game disk : r/WiiHacks
Nintendo Support: How to Use Nintendo GameCube Controllers
How to Connect a GameCube Controller to the Wii - Howchoo
Amazon.com: Mayflash GameCube Controller Adapter for Wii & Wii U (Dual Pack), White : Video Games
GBros. Adapter | 8BitDo
How to mod a Gamecube controller to connect to a Wiimote for Wii U and Wii - YouTube
raphnet. - Classic controller to Gamecube/Wii adapter
How to Use a Gamecube Controller on a Wii: 5 Steps (with Pictures)
Wii U Gamecube Controller Adapter - Brook Gaming
Amazon.com: Brook Gamecube Wii U Controller Adapter - Support Gamecube Controllers Adapter for Wii U and PC USB Android, up to 8 GC Controllers in The Same time (MAX), Turbo fire Function :
List of GameCube Controller-compatible Wii video games - Codex Gamicus - Humanity's collective gaming knowledge at your fingertips.
How to play using a Gamecube controller on the Wii U - YouTube
How to Use a Gamecube Controller on a Wii: 5 Steps (with Pictures)
Confirmed: The Wii U GameCube Controller Adapter will not work on DDR, Active Life, or Cyberbike | Gaming.Fit