A followup to Bob Factory, and a pretty impressive effort. This pair of levels is very, very hard, but it's worth it... I found myself having to try sections many, many times before seeing an easier way to get somewhere. Both levels allow multiple routes of access to the finish line... and some are much harder than others. And again, that M1 feeling is everywhere. As you do your best to stay alive, don't forget to notice the little things... like the lighting, and the constant explosions, and the architecture. I'd say Darrell is a mapmaker to watch...