This post is from one of several previous incarnations of this site and probably doesn’t quite fit the current format. In a former life this was a group blog and a tumblelog before it became a static jekyll site. If anything looks broken or is worded oddly that could be why. Pardon the dust.
Presumably using the Alchemy C/C++ to Flash AVM2 bytecode compiler that Adobe released this time last year. Impressively playable, performance-wise. I’m kind of surprised we haven’t seen more take up of this yet.