The Cobra Killer duo of Gina V. D'Orio and Annika Trost began as part of Alec Empire's Digital hardcore movement. Both were part of other bands signed to Empire's Digital Hardcore Recordings label—Gina was in EC8OR, and Annika was in Shizuo. Cobra Killer was arguably one of the most playful DHR bands, in contrast to the revolutionary bombast of most.