Naruto Wii uses ninja motions
Literally chop your friends up.
The Wii's first Naruto fighting game from Eighting will feature exclusive mini-game content when it arrives in the West, and will allow players to fight one another by performing "ninja-like movements" with the Wiimote.
Due out in the autumn across the pond, Naruto: Clash of Ninja MVZ (working title) is the latest in a fighting series that saw considerable Japanese success on the GameCube, and takes its cues from the manga and anime TV series Naruto, which has also done well outside Japan.
The Wii title features 14 characters from the series, with support for up to four-player battles across nine gameplay modes.
For more on Naruto (and to save my badly paraphrasing what it's about), it's a good idea to check out the exhaustive Wikipedia entry.