Right from the start, I could tell this was going to be interesting. I especially applaud its non-linearity, and its respawning items. Combat was challenging on skill 2, but not to the point where it would be overly difficult. Pretty balanced.
Its easy to get lost though. Trying to find your way around the map when a lot of the areas look very similar is tough. I spent at least a minute just trying to find the palace elevator.
The final battle with the vores was very clever, I liked that.
Unfortunately, I could not find the exit to the map, and ultimately gave up on it, which left a rather bad impression on me. Still, I managed to kill every monster.
This is a very fine map. It's not one of your better works negke, but it no doubt was enjoyable.
First run demo for your convenience.
http://qrf.mine.nu/~orl/misc/coag3_negke_orl.zip