Except for Naschy's dual roles, not much to recommend here. The obnoxious jazz it at odds with the action, and the slo-mo zombie attacks become laugable after a while. And how exactly does commanding a few zombies lead one to take over the world? Particularly disappointing after seeing Naschy's excellent Night of the Werewolf the week before.
Only one person has decided that they would watch this, which probably means if I was interested I would never find it anyway. Which I am not, lucky for me!