Konami has announced Marbles! Balance Challenge for Wii. The game is designed around the balance board, which is used to guide a marble (of course) through various stages filled with obstacles and the like. Also, there are ants. This game is actually the sequel to Kororinpa: Marble Mania, which was released in 2007 to little fanfare.
The game can be controlled either with the balance board or with a Wii Remote, and supports up to four players. Keep in mind, though, that the Balance Board counts as two controllers as far as your Wii console is concerned, so four player mode is most likely impossible if anyone is using a Balance Board.
Marbles! Balance Challenge is set for a May 1st release in Europe. No plans for a North American release have yet been announced. Stay tuned.

