After the explosion in a Secret Purple Goo Research Center, Purple Goo has splattered all around the country. The Purple Goo is a mysterious matter with unsuspected capabilities. The first capaility discovered after the explosion is that it raises Zombies ! You begin a new job in a government agency : Zombi Pet Control (ZPC) as a zombi cleaner. Your job is to go on zombies infested spot and clean the mess. You don't have to kill every zombies, you just need to wipe Purple Goo Puddles.