Tap the screen to start your mission in Alien Spaceship Chaos. Guide your spaceship by sliding your finger or controlling with the mouse. Fire enemies automatically or click to use special weapons. Collect power-ups to enhance your weapons and improve your firepower. Evade enemy fire and obstacles to survive longer. Defeat as many enemies as possible to score points and move up the leaderboard. Look out for boss enemies that appear at certain intervals for a higher challenge. Keep playing to access new weapons and reach the highest score.