Pro Controller U - Now that I've learned that it can't actually be used as a Wii U Pro Controller. And the package seems to make it quite clear that it can.
Wii Street U powered by Google - Trailer (Wii U) - YouTube
Wii U スーパーマリオ 3Dワールド 管理 【超お買い得!】
How to Set Up Your Nintendo Wii (with Pictures) - wikiHow