Best Buy says the GameCube controller adapter for Wii U works with "a variety of games"
GC Controller Adapter for Wii/Wii U (PLAY-ASIA.COM Edition) for Nintendo Wii, Wii U
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TTX Tech GameCube Controller Adapter for Wii U and Switch - Micro Center
Nintendo Super Smash Bros. Edition GameCube Controller for Wii U Black WUPACKB1 - Best Buy
GameCube Controller Adapter for Wii U, PC USB, MAC & SWITCH - NEXiLUX - Walmart.com
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Gamecube Controller Adapter for Wii U - Solaris Japan
Amazon.com: Mayflash GameCube Controller Adapter for Wii & Wii U (Dual Pack), White : Video Games
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GameCube Controller Adapter for Wii & Wii U (Dual Pack), White
Amazon.com: HORI Battle Pad for Wii U (Luigi Version) with Turbo - Nintendo Wii U : Video Games
Gamecube Controller Adapter,4 Port Gamecube Controller Adapter for Wii U Nintendo Switch PC USB Easy to Play Super Smas Bros in stock - Newegg.com
Confirmed: The Wii U GameCube Controller Adapter will not work on DDR, Active Life, or Cyberbike | Gaming.Fit
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Amazon.com: Hyperkin 4-Port Controller Adapter for GameCube Compatible with Nintendo Switch/ Wii U/ PC : Video Games
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GameCube Controller Adapter for Wii U, Nintendo Switch and PC USB – Lexuma
Nintendo GameCube Controller Adapter for Switch / Wii U / PC Tested Working | eBay
Nintendo GameCube Controller Adapter For Super Smash Bros Wii U for sale online | eBay
2 In 1 GameCube Controller Adapter Converter For Wii U PC For WiiU For Nintend Switch For NS|Replacement Parts & Accessories| - AliExpress
