in this game you play as a space ship and you have to fight other space ships that try to attack and destroy you. but it isn x2019 t a normal shooter and you have to use your brain to destroy them some bubbles will appear on the screen which include some numbers. there are also some simple mathematic equations on bottom of screen and their answers can be found among the bubbles. you have to choose the answer of each one of these equations from the numbers floating on the screen.