You (the red spaceship) need to protect your planet from your enemy (the green spaceship). Your enemy's goal is to destroy your planet by touching it with its super-powerful laser. The enemy goes to a random spot on the screen every 5 seconds. You move left, right, up, and down with the corresponding arrow keys. Press space to launch missiles at your enemy. Avoid crashing into asteroids. If you touch one, you will lose up to all of your lives. If a missile touches your enemy, it will lose a life and you will get 2 points. If you lose all your lives, you lose. If your planet gets destroyed, you will also lose. If your enemy loses all its lives then you win.
