A kickass fighting game series from Capcom. It focus around horror movie-esqe characters beating the crap out of each other in order to take over/protect/destroy the world. There was also an anime series, which was also kickass.
Unfortunately, Capcom's laziness almost killed the series. However, interest in making a new game has surface recently, causing Darkstalkers fans around the world to rejoice.
Darkstalkers is the best fighting game series EVER!!!