Dear Gamer, please watch this ads while your game is loading. Thanks!
Ako se igrica zaledi, klikni unutar iste (igrice ponekad ne reaguju ukoliko klikneš na sporedne stvari na stranici)
Shoot the alien ships with your ground-based laser before they drop bombs on your buildings. The laser aims itself. All you have to do is answer the math problem shown on the alien ship. A correct answer fires your laser at the alien.