Type letters to eliminate the alien attackers before they hit and destroy your cities. Instructions >>>
Gameplay - The objective of the game is to score as many points as possible by eliminating the alien attackers, which is accomplished by typing the corresponding letters as they drop towards your cities. Different types of aliens will appear as you progress to later stages. Click the help button to learn about the specific types of alien attackers. You will lose a life when they have thoroughly destroyed your city. The game ends after you have lost all of your lives.
Scoring - You need to get the aliens before they hit your cities, but the later that you eliminate them as they drop down, the more points you will earn. You will also earn extra points if you eliminate all the enemies in a stage. For each block of the city that you save, you will earn a bonus score at the end of the stage. If you hit your keyboard randomly, it will have a negative impact on your score because your bonus at the end of the stage will be modified by your accuracy level.
Bonus Letters - Eliminate bonus letters to spell the words LIFE or BOMB and get, respectively, an extra life or an extra panic bomb. Bonus letters will not harm your city. On the upper right, you will see the number of lives you have as well as the number of panic bombs. There you will also see the corresponding letter highlighted for each bonus letter you eliminate. Drop your panic bombs by pressing the space bar, which will eliminate all the enemies on the screen at once.
Bonus Stages - The enemies can't damage your city on bonus stages because they just fall into the water. You can earn points in the same way on bonus stages as in the rest of the game. The later that you eliminate your enemies, the more points you will earn. You will also earn a much greater amount of extra points by eliminating all of them than you would by doing so on a regular stage.