http://www.incredibox.com/ (http://www.incredibox.com/)
You guys HAVE to check it out, I find it quite creative and well done on both musical and general styles. It allows you to drag in beats/melodies/effects and create any soundtrack of your own or even download/record it for free. Just drag in anything randomly or even shuffle, you never know what you get!
Here's a video to increase the badass-ery.
Сальто с высоты 15 метров на ноги! Смертельный трюк. (http://www.youtube.com/watch?v=EUZMLNG8UZA#noexternalembed)