Ultra Vortek (also released as Ultra Vortex) is a fighting game developed by Beyond Games and published by Atari Corporation for the Atari Jaguar in North America and Europe on September 5, 1995. It was the second fighting game released for the Jaguar after Kasumi Ninja and unsuccessfully sought to capitalize on the trend of violent fighting games started by Midway Games's Mortal Kombat in 1992. It was the only officially released game that supports the unreleased Jaguar Voice Modem peripheral for online play.