Kingdom Hearts 3 could have had a world based on the 2006 Pixar movie Cars, at least according to a recent data leak. One of the main drawing points of Square Enixs sprawling Kingdom Hearts series is how it combines the universes of Disney and Final Fantasy, with main protagonist Sora and his friends meeting iconic characters like Cloud Strife, Hercules, Squall Leonhart, Ariel from The Little Mermaid, and countless others while on a quest to save reality from the forces of darkness. This arc culminated in 2019s Kingdom Hearts 3, which marked the conclusion of the "Dark Seeker Saga" storyline centered around the villainous Xehanort and Organization 13.