Space Defense Help
Playing the Game
Setting Game Options
Calculating the Score
Playing the Game
Your mission: Score as many points as possible before your space station is destroyed.
Defend metropolis.
Defend suburbs.
How to fight back
- To fire, simply tap somewhere on the screen.
- One of three turrets fires based on your current turret firing rotation. See Setting Game Options for instructions on setting your turret rotation selections.
Each turret has a limited supply of ammunition.
Setting Game Options
Tap
to see the game controls, and then tap Options.
Turret selections
- Rotate automatically--Turrets fire in order.
- Rock keys/Manual--
Single tap to fire from corner turret.
Press the Up/Down control up and tap to fire from left turret.
Press the Up/Down control down and tap to fire from top turret.
Skill level
Game sounds
Disable screen taps
- Turns off stylus tap sound.
Calculating the Score
- Your score is calculated based on the number of missiles you destroy and the amount of ammunition you have left at the end of each level. A level multiplier is used so that your scores will increase as the levels increase.
- The efficiency rating displayed on the screen does not figure into your score. It is calculated by dividing the total number of incoming missiles by the amount of ammo used and mutiplying by 50.
- To get an efficiency rating of greater that 50%, you must destroy multiple missiles with a single piece of ammo, and not waste any ammo.