As previously reported, BlazBlue: Battle x Battle is a 500 Point ($5) DSiWare download. The official site pegs the genre as a “team hand to hand fighting action” game and says it will have flashy moves with easy controls.
BlazBlue: Battle x Battle has a four player mode so you can play it with a friend or three! Unfortunately, the announcement doesn’t say if BlazBlue: Battle x Battle supports local wi-fi game sharing or not. Japanese Nintendo DSi importers can grab BlazBlue: Battle x Battle in January.