Zombie Ass: Toilet of the Dead [Blu-ray]

Talented young martial artist Megumi wrestles with the guilt of her bullied sister's suicide while joining her friends on a journey deep into the woods, where they encounter the nefarious Dr. Tanaka, who conducts gruesome experiments on the living dead. Later, as Dr. Tanaka attempts to make Megumi and friends his latest test subjects, the desperate young woman uses the dual power of karate and flatulence in order to defeat her demented captor.