Amazon.com: PDP Wired Fight Pad for Wii U - Link: Video Games
List of Wii games with traditional control schemes - Wikipedia
TIL You can use gamecube controller in Mario Kart Wii : wii
New 2020] How to use Official GC adapter on GC "Emulator" for WiiU! (nintendon't) - YouTube
Just Got One of Those Gamecube Controllers That Plug Into the Wii Remote. What's the Difference Between These and the Actual Gamecube Controllers? : smashbros
Nintendo Wii U GameCube Controller Adapter at GameStop