Up/Down = Accelerate/Brake Press the arrows in the air to perform simple tricks. Hold the Spacebar while pressing arrows in the air to perform advanced tricks. When approaching a ramp, hold Space to charge, and release at the top to perform a back flip. (Use the up and down arrows to control your rotation.) Link tricks to multiply your score. Land on the downslope of the ramp to score double. Between runs, use the credits you've earned to buy upgrades.