Haha! Stumble along you stiff fool! While the classic Remero zombies were a little slow, they had the advantage of expanding their numbers without the need to infect anyone. Everyone who died became a zombie, but a zombie bite would speed up the process. These monsters weren't compleeeetely stupid as they still had a few memories of their past lives and the ability to learn wasn't out of their grasp. That said, they still pretty much just moaned and ran on instinct. So how do you kill them? Destroy the brain, my friends...destroy the brain.