When Justin built this elaborate Rokenbok recreation of the Demon Drop ride, which is similar to freefall rides at amusement parks, he was just 15 years old. The talented teen's ride not only drops the car down the vertical track but also returns it to the starting position so the ride can drop again.
Take a look at how the Demon Drop ride works below:
But this isn't his only impressive creation and a quick glimpse at his Youtube channel will show you that he has a knack for creating smaller scale thrill rides. Justin's Rokenbok-themed Youtube channel has more than 18