Build it! and Ride it! with the K’nex Thrill Rides Vulture’s Vengeance Roller Coaster with the K’nex Ride It! app. Experience K’nex Thrill Rides in a whole new way with this robot vulture themed coaster perfect for boys or girls ages 7 and older. Build the Vulture’s Vengeance toy roller coaster with the included 690 K’nex parts and pieces including coaster track, roller coaster car, motor and themed graphics! The rods and connectors click together to create a 3D configuration and a coaster that stands over 2 feet tall. The Vulture’s Vengeance Roller Coaster has a battery-powered motor moves the coaster to the top of the hill, before it zooms through loops and curves. The coaster requires two AA batteries, which are not included. In a new twist to K’nex Thrill Rides, upon completion of building the coaster, children can download the free K’nex: Ride It! app to take their play to a brand-new level. Once downloaded, children can ride the Vulture’s Vengeance Roller Coaster using the included virtual reality, VR, viewer. Or, take building into the digital world! Rebuild the Vulture’s Vengeance in the app or create any coaster you can imagine. Once done building in the app, kids can then ride what they just built! The K’nex: Ride it! app perfectly marries a hands-on building experience with a mobile app. This building set contains a full-color instruction sheet that walks your child through the process of building a coaster that will make your child want to start experimenting immediately.