Game Flow

Each level of the game has two phases, the buying phase and the defense phase occuring in the that sequence.

During the buying sequence, the player is presented with his territory and a sidebar containing the upgrades that the player can choose. What the player can upgrade will be limited by how much money he has. Initially, the player will be given empty bases and he will have enough money to choose between buying more basic weapons or having less weapons but having a more advanced weapon.

Once the buying phase is over, the defense phase starts. The player starts from the his homebase and waits for missle launch alerts. Once an enemy missle is airborn, the player must respond so that his cities do not die. As the player has limited bases to fire from and because of a reload time inherent in all of the weapons, the player is forced to manage his weapons as missles rain down from all directions.

The player chooses which of his bases to control by either selecting them with a mouse or pressing a shortcut key. Selecting a base will project a path from the base to the pointer of the players mouse. When the player left clicks, a missle of the appropriate type will fly from the base to the coordinates that the player chose with the mouse. It will explode there and destroy any enemy missles it touches.

The missle patterns in each level is predetermined, allowing a player with enough patience an opportunity to memorize how to take down the enemy missles succesfully. A level will end once all the missles in the pattern have been fired.

When the level ends, the player is awarded credits according to how many cities he has left and how accurate his shooting was. The player can then use these credits to buy a better arsenal in the next buying phase.

At the third stage, the player must defend against nuclear missles which are able to destroy more than one city at once. If the player can survive this onslaught, he is shown the cutscene of a retaliatory nuclear strike against the enemies.