Image credits for sound blog for GI

http://thedailyneuron.com/wp-content/uploads/2013/10/Sound-waves-twitter-backgrounds-sound-waves-twitter-themes.jpg
http://i1-win.softpedia-static.com/screenshots/Super-Mario-Bros-Screensaver_3.png
http://megagames.com/sites/default/files/game-content-images/pic5.jpg
https://24.media.tumblr.com/tumblr_m2ckzjJkHF1rqjnxgo1_500.gif
http://www.craveonline.com/images/stories/upl_images/dead_space_2_1.jpg