How is this achieved, apart from an absolute ton of effort?

Saw this really impressive site from citrix: [http://thenewmobileworkforce.imm-g-prod.com/](http://thenewmobileworkforce.imm-g-prod.com/)

I know it'll probably be way out of the scope of my capabilities, but how is:

The tilt effect based on mouse position

&

The storytelling based on scrolling achieved?

Thanks a million!