To do one-touch stunts on your Nano Drone, get the drone to a safe hover of about eight feet. Hold the stunt button down and toggle the right thumbstick in any direction you want to do a barrel roll or flip. To do a left barrel roll, hold the stump button down and move the right thumbstick to the left. To do a forward or back flip, hold the stunt button down and move the right thumbstick to the front for a front flip, or down for a back flip.