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From Peter Olafson:
Climb onboard a runaway rocket. How long can you survive in space with no reverse thrusters? Fire your rockets to move left and right to pick up stars or avoid planets, asteroids, the sun & UFOs. But with each firing of the engine the rocket speeds up. Slow down by getting inside a planet's gravitational pull. Get too close to a planet and you'll be a crater. Earn points and refuel the rocket by collecting stars. The faster the rocket is going the higher the points for stars. Speeds >100 = 1x multiplier400 = 4x multiplier800 = 8x multiplier1000 = 10x multiplier