Long name, short level, this one is an interesting oddity. With multiple textures not just meaning two, complex and interconnected geography, detail brushes, and custom script texts ("Groovey"), this level is definitely the best one we have seen in this pack so far. I wouldn't go so far to say that it is one of the best, but it definitely beats everything else in this pack by far (interesting contrast with the previous level that had quantity over quality, this one has quality over quantity as the level is extremely short but decent)! That Scrag is pretty interesting, you have to shoot it through the window in order to reach it. Another oddity is the name itself. If you remember the plotline of Q2 (come on, raise your hands if you forgot!) you would remember that you are trapped in the Underworld. This level could be seen as the first in the storyline, yet all the levels are disconnected and it is not set up in an Episode structure (there is still no way to exit the level even if there was). Still, this makes you wonder if the developers originally had different plans for the pack (according to the date modified, this is the earliest level of the pack with Blackrock coming a day later and the rest pounded out afterwards) before resorting to a large number of levels using one texture and being copy-pasted corridors/rooms.