No nudity of any kind

We see a young girl in a very short dress, as she jumps up and down.

Cheerleaders wear standard high school cheer uniforms, which includes fairly short skirts.

Two scenes in which Zed and Addison come close to kissing but are interrupted

Brief thematic 'zombie' elements, with a (very occasional) mild threat of violence from zombie characters and no actual violence other than very mild comedy type slaps/punches. It's made for kids, but younger (5yrs or lower) kids may find it scary at times.

A character mentions that a zombie bit her grandfather's ear off.

No blood or gore is ever shown onscreen, but it is revealed that zombies would have an uncontrollable urge to eat brains if not for their Z-bands.

Zombies without their Z-Bands can be frightening to children.