Sound effects using CC0 1.0 Universal (CC0 1.0) license
(License: http://creativecommons.org/publicdomain/zero/1.0/)


http://www.freesound.org/people/elonen/sounds/21067/
http://www.freesound.org/people/lluiset7/sounds/141334/
http://www.freesound.org/people/cubicApocalypse/sounds/195509/

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Sound effects using CC BY 3.0 license
(License: http://creativecommons.org/licenses/by/3.0/)

http://www.freesound.org/people/D%20W/sounds/151577/
http://www.freesound.org/people/DJ%20Chronos/sounds/123235/

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Sound effects using Sampling Plus 1.0 license
(License: http://creativecommons.org/licenses/sampling+/1.0/)

http://www.freesound.org/people/calivintage/sounds/95700/