The manga (Hokuto no Ken) debuted in 1983 and went on to spin off two animated series and motion pictures.
Dubbed Hokuto Musou, the game is scheduled for release sometime next year. Wasn't that interested — blurry magazine scans do that — but this leaked footage has me intrigued. Looks fun! With all that blood, wonder what rating it will get in Japan.
The clip is originally from Nico Nico Douga — hence the scrolling Japanese text.