mp3/computer.mp3 by squashy555 (https://freesound.org/people/squashy555/sounds/273736/) mp3/spaceship.mp3 by BurghRecords (https://freesound.org/people/BurghRecords/sounds/415673/) mp3/timbregirlelevator.mp3 by Timbre (https://freesound.org/people/Timbre/sounds/528775/)