Created by yours truly. No Flash, just CSS, HTML5, and jQuery. The animation is very not smooth in Firefox, but works great in Safari and Chrome.
Using the scrollbar to bring the view upward was a stylistic choice, it could’ve just as (if not more) easily done in a single “screen”, but what’s the fun in that? The demo uses the jQuery backgroundPosition-Effect plugin to achieve the parallax scrolling effect, and the new Javascript audio capabilities introduced by the HTML5 group. The timing may not work very well on older machines.