Kokkuri
The word "kokkuri" refers to the game, the actual physical apparatus, and "kokkuri-san" refers to the being that is summoned that is considered by the Japanese to be some sort of animal spirit that is a mix between a fox, dog, and raccoon. These three animals are meant to reflect the dual nature of the being that is believed to be summoned as it is considered to have different personalities at times. Such as the fox being a trickster or teacher, and the raccoon being a bearer of mischief and also a bearer of fortune. "Kokkuri-san" is  believed to possess the apparatus in order to communicate with humans. The physical mechanism is composed of three bamboo rods arranged to make a tripod, upon which is placed a small pot, which is covered by a cloth. Three or more people will place their hands upon the kokkuri and ask the spirits a question, which that spirit will in theory answer by moving the pot or remaining still. In Japan, this game is usually popular amongst school children which due to many things happening resulting from the games that were played, was eventually the spark for many mass nationwide  media hysterias and enventually led Japanese schools to ban the game from being played at schools. Japanese folklorist Inoue Enryō wrote about the kokkuri phenomenon, denouncing it as mere superstition, yet his efforts did not succeed in depopularizing the game. Some scientific figures of the age attempted to explain the phenomena with the more scientific sounding yet ultimately equally mysterious term "human electricity".