http://creativecommons.org/licenses/by/3.0/

8 Bit Circus Song
https://freesound.org/people/bone666138/sounds/198896/

8 Bit Dying
https://freesound.org/people/n_audioman/sounds/273471/

Air Vent Sound
https://www.freesound.org/people/cdrk/sounds/264345/

Static Sound
https://www.freesound.org/people/Jace/sounds/35291/

Office Ambience
https://freesound.org/people/PatrickLieberkind/sounds/244961/

Phone Pick Up
https://freesound.org/people/ondrosik/sounds/121756/

Phone Ring
https://freesound.org/people/infobandit/sounds/29621/

Twisted Kitty Logo Sound Effect
https://www.freesound.org/people/tgfcoder/sounds/114025/