Famicom Tantei Club: Kieta Koukeisha is a text adventure game. The protagonist is found on the ground near a cliff by a man named Amachi. The protagonist can't remember anything, and finds that he has amnesia. After some rest, he returns to the cliff and meets a young girl, who informs him that he is an assistant detective investigating the death of someone named Kiku Ayashiro. He heads over to the Ayashiro estate, learning that in the village there is a saying that the dead will com back to anyone who attempts to steal the Ayashiro family's fortune. As he keeps investigating, he learns that there may be a connection between this legend and the serial killings in the village.
The game has a horror movie-like atmosphere. Actions are controlled by selecting text commands like interrogate, examine, or move. The Famicom Disk System version comes on two disks released on different dates. All later releases have both parts in one release.
Famicom Mukashibanashi: Shin Onigashima is a Famicom Disk System text adventure game. The plot revolves around an elderly couple with no children who adopt an infant boy and girl. When the children turn six, a dragon appears in the country, and starts turning people into Oni who steal the souls of others. The Oni arrive at their home and steal the elderly couple's souls. The children decide to save their adoptive parents.
The game is controlled by selecting commands such as the "Change Character" command, which allows you to switch between controlling Donbe (the boy) and Hikari (the girl). The game progress is shown by changes in the in-game graphics. The Famicom Disk System version comes on two disks released on different dates. Disk 2 cannot be played without completing Disk 1, and is switched while the system is still powered on. All later releases are switch-free.