Doorbell, spacecraft signal:
-
Spacecraft hatch opens, closes
-
Cosmic wind
-
Spacecraft landing
-
Spacecraft door opens, closes
-
Drone alien device
-
Space explosions
-
Space alien radio signal
-
Alert signal on a spaceship, drone
-
Cosmic sounds
-
Space wars, blasters, lasers
-
Conversations of a small crowd of aliens at
-
Shot, Charging a laser weapon
★★★★★