None.

By all "Sherlock Holmes" films produced by Burbank Films Australia, this is the least violent of the four films.

Blood stain is found on floor.

A man is shot to death, off-screen. A woman is kidnapped, but it is implied she has been murdered.

Very mild language, the closest to one is "devils" that is briefly heard near the end.

Sherlock Holmes tends to smoke his pipe. Another man is briefly seen doing the same for a few seconds.

Aspirin is present later in the film.

A man drinks some alcohol and becomes heavily drunk.

This is the least violent of the four "Sherlock Holmes" cartoons made by Burbank Films Australia, but the crime/murder scenario may kinda disturb some younger children not familiar to such scenes.

Revenge is a central theme of this film.