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Kung ang laro ay nahinto, pumindot lamang sa loob nito (mga laro ay hindi tumutugon kapag pumindot sa ibang bahagi ng pahina)
Deskripsyon ng Laro:
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.