'Sadako vs. Kayako' is the title of the Japanese supernatural horror film that is set to be released in the summer of 2016.
The movie combines characters taken from 'The Grudge' and 'The Ring,' both of which feature terrifying creatures that move eerily to frighten their viewers. In a bizarre yet creative promotional tactic, the characters that comprise Sadako Vs. Kayako were brought out to play the first pitch of a Japanese baseball game. The supernatural beings surprise the audience and cheerleaders run off the field when they see them approach. Characters act as they would on screen within the game, with 'Toshio' of The Grudge sitting curled on the ground as he stares ahead being one example.
With this campaign, the release of Sadako vs. Kayako has gone viral, likely resulting in more support for the film than traditional promotion techniques may have offered.