This game simulates applied gravity orbiting Earth. Steer the Droid rocket, please be stabilized within the orbit of gray. The rocket is collision at the Earth, or go outside the specified range, the game is over . The valid range is display screen with around the 8 screens. Remain within the orbit, becomes clear when the rocket around the track in blue and advances to the next mission. Initial velocity and gravity of each mission, the range of valid boot to the start screen is displayed. Also position and velocity of the rocket, the angle, please reference will be displayed at the bottom of the screen in real time. Number of clear missions are stored as data, you can choose the number of missions in the area cleared by UP / DOWN on the start screen. The maximum number is 999 mission. Time limit and upper limit of the fuel not so please relax and clear. Using copyrighted images are the property of Google.