Riki-Oh: The Wall of Hell The story follows Saiga Riki-Oh, a young man blessed with inhuman strength. After taking revenge against a yakuza boss who was responsible for the death of his girlfriend, he ends up in a maximum security prison owned by a private organization. Details Casts Galleries Posters Title Riki-Oh: The Wall of Hell Release Date 1989-06-25 Runtime 00 Hours 45 Minutes Genres Action Animation Production Companies Unknown Production Countries Japan Bin Shimada... Riki-Oh... Original Size (1280x720) Original Size (500x750)