The homepage navigation from Firstborn's Flash-era site, pulled from the Wayback Machine and
run in-browser through Ruffle (no plug-in needed). Switch eras below. These are the real archived
.swf binaries — dynamic content (news feeds, project pages) was served from live backends that
no longer exist, so expect the navigation shell to render, not the full site.
Decompiling the ActionScript in each binary: the nav is text-based and motion-driven, but what
reads as "physics" is eased tweening, not a spring/mass simulation. The 2003–2007 builds (AS2) use
buildMainNav / textNavAni with ease-in curves; the 2010 fb7 build (AS3) drives an
elastic/bounce tween engine — springy feel, scripted keyframes underneath.
No velocity, gravity, friction or drag-constraint code is present in
these homepage binaries. If the physics nav you remember was a separate lab/experiment piece, say the word
and I'll go dig that specific one out of the archive.