A very large, sprawling level with a wide variety of playing areas (open, narrow corridors, and everything in between). Lots of lava to die in... some smearing due to sight lines longer than 28 WU's, but only in a few places. Is built with an, um, interesting physics model... Let's just say you'll see something you haven't seen before. It's not at all clear what this update adds... (the readme doesn't mention changes, and I didn't see anything radically different when I ran through it.)