Zombie Ass: Toilet of the Dead

Wracked with guilt over her younger sister's suicide, pretty young karate student Megumi accompanies a group of older friends on a camping trip into the woods, where they're attacked by feces covered undead.

Zomvideo

Aiko and Hashimoto discovere a VHS videotape called "A Guide to Surviving Zombies From". This is a video with a set of instructions that will help them cope with the invasion of the undead living in Japan.