Kore wa Zombie Desu ka? OVA
Kore wa Zombie Desu ka? Episode 13
Kore wa Zombie Desu ka? of the Dead Episode 0
Kore ga Saishuukai Desuka?
Encore Arigatou Gozaimasu
Is This a Zombie? OVA
Two OVAs released with the 8th and 10th volumes of the original novel. They fall chronologically between the first and second seasons.