Finding the Jade Key in the film is a very different experience. The book required players to complete a text adventure game called “Zork” (to get the Key) and then unlock a Voight-Kampff machine from “Blade Runner,” play a game of “Black Tiger,” and untwist some Rush trivia (to unlock the gate).
For the second key Spielberg’s movie simplifies all that. In order to earn the Jade Key, Wade and his friends plunge into a staggering recreation of Stanley Kubrick’s “The Shining,” which they must navigate in order to reach a ballroom-set mission that sees them having to save Halliday’s unrequited love Kira from a pack of zombies pulled directly from a video game Halliday loved.

Why does the quest for the key move from a simple recreation of games movies and music found in the novel into an interpersonal relationship quest in the movie?
What do we know about Halliday that would make the quest for the jade key so different from the first?