What a difference a day makes. Yesterday we reported that the forthcoming GameCube controller adapter — being launched alongside Super Smash Bros. for Wii U — would allow the classic pad to be used with other Wii U games.

The source was Nintendo's own online store, which stated:

This adapter will allow you to connect your GameCube controller to the Nintendo Wii or Wii U. Connect your GameCube controller to your Wii or Wii U console. Compatible with all games supported by the Wii Classic Controller, Wii Classic Controller Pro and Wii U Pro Controller.

This morning, that very same text was removed from the listing, promoting wild speculation as to its validity.

We can now reveal that the text in question was a mistake — the GameCube adapter will not be compatible with any Wii U titles other than Smash Bros. for Wii U.

Here's what Nintendo UK told us today:

The GameCube Controller Adapter for Wii U is compatible with Wii U and Super Smash Bros. for Wii U specifically - it is not compatible with any other Wii U software. The adapter is also not compatible with Wii and we apologise for any confusion.

Are you disappointed that you won't be able to use the GameCube pad with other Wii U games? Were you intending to buy one based on yesterday's now-debunked news? Let us know by posting a comment below.