The height of "The Joker" depends on which Six Flags park you are visiting, as there are several different models. The most famous version—the 4D Free Spin coaster found at Six Flags Over Texas, Great Adventure, and others—stands exactly 120 feet (37 meters) tall. It features a vertical lift hill that takes riders straight up 12 stories before they experience a 90-degree drop. During the ride, the seats spin independently of the track, so you never know if you'll be facing up or down. At Six Flags Discovery Kingdom, "The Joker" is a hybrid wood-and-steel coaster that stands 100 feet tall and features a 78-degree drop. Both models are considered "Thrill Level 5" and are among the most popular "villain-themed" attractions in the Six Flags portfolio for 2026.