Alexey Bokov Studio
What a unique portfolio for designer Alexey Bokov. The intro features bouncing balls around the screen that form a welcome message and also contain links to the AJAX loading projects.
This website has unfortunately been redesigned or gone offline, so I have removed the direct link to it. The screenshot below hopefully preserved enough of the design but if you are really keen to inspect further, try this Archive.org link. FYI: the site was first featured on 10 June 2013.