If you’ve played the “final” build on FreeBSD, chances are you would have been severely violated by the garbage collector. Here’s a version that’s actually playable on FreeBSD (no, not all the lag has been cut out, but it’s smooth enough to… uh, something)

http://pubacc.wilcox-tech.com/~greaser/stuff/ld18/HeadTrauma-MemoryImageSource.jar