I played through it, got till the end (some elevator) and it said for the full thing, keep checking the website.
I'm using a 3GHz p4, and a Radeon 9800XT, and I was only getting 30-60FPS (checked with Fraps.)
The file is indeed 96kb, but somehow in actual RAM, it took up 300MB. Compression of that magnitude is very impressive.. The graphics don't seem THAT great, but it's very taxing. I'm more likely to believe that it's because of the compression then the graphics, but.. *shrug*
I made some FRAPS video clips of gameplay. If you want to see them because your system couldn't run it, IM me and I'll send you the clips.
P.S., It's NOT downloading during the loading screen. I exitted everything, checked the number of packets sent and received, started the program, played through, and the number hadn't changed through the loading screen. At all.