After some googling (and google translating), that “Kowai Hanashi Hyaku Monogatari” seems to be related to the PC-Engine game called “Hyaku Monogatari ~Honto ni Atta Kowai Hanashi~” that was released the following week (http://vndb.org/r9009). Both of these seem to be based on this: http://ja.wikipedia.org/wiki/%E7%99%BE%E7%89%A9%E8%AA%9E, an event where people would gather together and tell 100 ghost stories.
In other words, there seemed to be something in the air, don’t you think?