Disclaimer: Don't fail your math test because you were trying to manual down a digital hill. Ride safe, study hard.
For the uninitiated, the Pinkbike Game —specifically the various Flash (now HTML5) driving games hosted on the Pinkbike forum and arcade—was a digital rite of passage. Before Riders Republic and Descenders , there were simple, physics-based 2D games like Bike Trial , Mountain Bike Assault , or the various "Line Rider" style tracks.