"Zangeki no Reginleiv (Dynamic Slash, or Dynamic Zan was its original title) is an action game for the Wii developed by Japanese developer Sandlot and published by Nintendo. It was first revealed at Nintendo's conference on October 2, 2008.
It was released on February 11, 2010 in Japan; no North American, European, or Australian release dates have been announced. With its black cover design, it is the third game to break the traditional white coverwork of Wii video games. The first two were New Super Mario Bros. Wii and Metroid Prime Trilogy.
Source: Wikipedia, "Zangeki no Reginleiv", available under the CC-BY-SA License.