Survive the flight through space and blast as many enemy ships as possible. Your ship is armed with several weapons which you can collect and upgrade throughout the game. But know that the odds are against you - some enemies may be too strong for you to take on and to make it through you must evade them and their fire. Use the 4 and 6 keys to move left and right, 2 and 8 to move up and down. Use 5 to fire. You can pause the game by pressing the 0 button. Points are scored for each enemy you destroy. If the enemy destroys your ship by shooting or by crashing into it, you lose a life. After you have lost all your lives the game ends.