Since Adobe Flash was deactivated in 2020, playing these classic promotional games has become a challenge. Much of the original movie tie-in content is now considered "lost media". However, dedicated preservationists have made it possible to revisit these scares:

: Players navigated 3D-style environments using their mouse, often triggering Quick Time Events (QTEs) to dodge Kayako’s sudden attacks.

As part of a "meta-series" that included the films and web shorts, the original flash game was designed to promote the American remake of Ju-On: The Grudge . Unlike the full-length Nintendo Wii title, Ju-On: The Grudge—Haunted House Simulator , which featured multiple chapters and a "courage test," the flash game was a focused, high-tension experience.