WASD to move. This game lasts forever, and tests how long you can stay alive for. Space or click to shoot. At the start, you get 2 extra lives, as your health does not regenerate. After every 750 points gained, you will earn another extra life. You can only have a maximum of 4 extra lives at a time. At 2 500 points, you will advance to level 2, and every minute, alien ships pass by and upon destroying them you will gain 10 points. Good Luck!
Thanks to @griffpatch_tutor for his space shooter tutorial.
