Due to its construction, the ride's mountain was crumbling and required heavy maintenance. By 2012, its condition had become so bad that it was unstable, and needed to be removed. At first, the ride was planned to have its mountain rebuilt using new construction techniques. However, as popularity for the ride had decreased over the years, it was decided that a new, more dramatic, more original and more eye catching ride would be needed. So, throughout the 2013 season, the Runaway Train's mountain, train, and other theming was removed and replaced with the new ride experience, Scorpion Express. The Ride's track and train were retained, with the trains being given a new, more 'rusty' coat of paint.
Parts of the Runaway Tain's queue are still intact, and can be seen through the trees by the Children's Zoo.