Here's how much you're spending on the Gamecube controller adapter for Wii U

The Nintendo GameCube controller adapter for Super Smash Bros. Wii U, which will grant the use of classic GameCube or WaveBird controllers with the fighter, has been priced at $19.99. Nintendo will also launch a Nintendo GameCube controller with Super Smash Bros. markings for $29.99. There will also be a Super Smash Bros. for Wii U bundle with one controller and one adapter for $99.99. All of these items will be available the same day Super Smash Bros. launches this holiday.