
The adapter will allow up to four GameCube, WaveBird, or the new “retro” GameCube controller released alongside the game to interface with the Wii U through the console’s two USB ports.
The standalone adapter will retail for $19.99, whereas the “retro”-branded controller will go for $29.99., so the bundle will save you a good $20 or so, if you care about being able to use those controllers.
