In order to complete the Jade Key challenge, the High Five must complete The Shining Flicksync. This challenge is added with time duration so the gunters need to find the key as fast as they can (duration: 5 minutes).
The challenge itself need to find Halliday's love interest and Morrow's wife, Karen Underwood, and ask her to dance.
However, this challenge only appears in the movie, replacing the Zork, Black Tiger, and Blade Runner challenges in the book. The changes was made by director Steven Spielberg to honor The Shining's director Stanley Kubrick.