Scary games to play!

Tsuji-ura

Allegedly this one originated many, many years ago in Japan; I haven't been able to find out anything about its origins beyond that, though, so it's possible (and likely, I think) that the whole "this is an ancient Japanese fortune telling ritual!" thing is just meant to add to the mystery of it. Anyway, the good news is that Tsuji-ura is a little less involved than some of the other games on this list: All you have to do is find a comb and something to cover your face, take them to a crossroad when it's dark out, run the comb over your teeth three times to make some noise, and chant "Tsuji-ura, Tsuji-ura, grant me a true response" three times. If a stranger approaches you, cover your face; then ask them to tell your fortune — but don't push it if they refuse.