Yeah, shit like that should've been the first expansion. No idea what they were thinking with the cave thing. I spent half my time stuck somewhere unable to figure out how the hell to get where I'm going. Hated that expansion.
This looks much better, even in prototype. Probably too late, though. I have a Station Pass and never really think about logging into PS, and I loved that game. I guess I should probably reinstall and just jump in for the hell of it, since it's "free".