Changing a value restarts the run with the new configuration. All values are model assumptions, not measurements.
Three simulated vehicles for a 90.7 kg (200 lb) rider: a wheeled skateboard with a compressed-air boost thruster, a cold-gas hoverboard and a theoretical chemical-rocket hoverboard. Every motion you see is integrated live from forces, mass flow and stored energy. Nothing is scripted.
Skateboard: hold ACCEL for the hub motors, tap BOOST to open the thruster valve, BRAKE to stop. Drag the view to orbit, pinch to zoom. The timeline replays a run.