Thrill Kill

Thrill Kill is an unreleased 1998 fighting video game. Gameplay consisted of a closed 3D room where up to four opponents would fight to the death, and proceed to finish each other off with Thrill Kills, much like the fatalities of Mortal Kombat. Every attack made would result in a character's bloodlust to rise. Instead of the usual life bar, characters built up a "kill meter". (wikipedia.org)