Three unbroadcasted exclusive Special shorts of Gregory Horror Show (presented as bonus videos on the first series DVDs volumes 1-3 in Japan only), containing stories featuring Gregory himself as a guide, giving his commentary and thoughts on each of the guests in the hotel, also displaying paintings based around the said guests. (Source: Wikipedia)

The third series, The Last Train is set with 26 stories during a bizarre train ride that Gregory embarks upon. (Source: AniDB)

The fourth series, The Bloody Karte (presented as a side series on the DVDs) is a set of 12 stories about Catherine working in a mysterious hospital. (Source: AniDB)

The second series, The Second Guest is similarly set with 25 stories, except this time the main victim is a woman who has just taken a taxi home from her best friend's wedding ceremony. (Source: AniDB)