You have to solve math problems to SAVE THE EARTH!! every problem you solve you will get 10 points but be careful when your answering you wont be able to move use W A S D or arrow keys to control your ship, aim with the mouse pointer and press or hold space, also you can use the left click on a mouse to FIRE!
I made this game by smashing a bunch of tutorials mixed with some of my own invention together until they fit.