New Super Luigi U

It’s-a-Luigi-Time! The Year of Luigi-themed downloadable content for New Super Mario Bros. U offers players 82 updated courses and only 100 seconds to complete each one! But it also includes a new playable character in multiplayer mode: Nabbit, who steals items from Toad Houses. Nabbit can't power up, but also won't take damage when he touches enemies.

Also in honour of the Year of Luigi, Nintendo is also offering a standalone packaged version of New Super Luigi U that doesn't require New Super Mario Bros. U.

Features:

New Super Luigi U is a platforming game featuring Luigi.
All 82 courses from New Super Mario Bros. U have been retooled with new challenging designs and features for this adventure!
Luigi can jump higher than Mario, but finds it a lot harder to stop moving once he gets going, so playing as him will be a whole new experience!
In multiplayer mode, you can also take control of the thieving Nabbit from the original game! He doesn’t take any damage from enemies, so he’s well-suited for less experienced players.