Unidiscs are large, flat metal discs that fly through the air at insane speeds. They are used as a means of transport in Plastic City, mainly by young daredevils and adrenaline junkies. To ride a Unidisc, you need only crouch on all fours on top of it while it is idle, grab the handles, kick it once to start it, and hold on for dear life. To steer, lean in the direction you want to go. To stop, lean back as far as you can, or just crash into something.