Subsequent levels require you to perform aerobatic stunts for points. Doing so shouldn't be too difficult once completing the first level. The second level, Checkpoint Chase, gives you just 10 seconds to reach each checkpoint. An arrow on-screen points in the direction of the next checkpoint to help you along. The goal is to make two complete laps of the circuit within the time limit.
The first level, Free Driving, acquaints you with the vehicle, the environment, and the placement of the checkpoints.
Each level must be unlocked by completing the one before it, thus providing a system of rewards that enhances enjoyment of the game. What you wind up with is a 3D racer that is exciting and fun, with 5 different challenge modes of play. Supersonic RC mixes fast and furious checkpoint racing with extreme stunts. From comes one of the best Shockwave 3D implementations I've seen.