FX Fighter is a video game developed by Argonaut Games and released by GTE Entertainment in 1995. It was an early realtime 3D fighting game to be developed for the PC.
FX Fighter Turbo is a sequel that was released for the PC in 1996 with new characters, moves, environments, costumes, special effects, network play, and support for Microsoft Windows and the S3 Graphics chipset. As did many other fighting games at the time, FX Fighter Turbo followed suit with Mortal Kombat by including fatalities, a feature not seen in the previous game.
Source: Wikipedia, "FX Fighter", available under the CC-BY-SA License.