This is a bit confusing to explain, so bear with me. There is a tall pillar, similar to one on a freefal. At the bottom of this, there are four arms sticking out. Attatched each one of these, are seven mini cars. The cars (28 in all) spin. The four arms spin, slowly. The four arms then rise to the top. You probably didn't understand any of that, but it is simple when you see it. It's quite a thrill, and gets the andrenaline pumping when you are up at the top, but it's nothing too special.