Well, I finally dropped the infernal level 8 just now. It's excellently and aesthetically designed and all, but gee whillickers, can you say "spaghetti"? It took me FOREVER and an ETERNITY to finally get everything in it, and the only way to succeed is to identify the passages you can see (but can't get you) and track them along for several rooms until you know where to enter them. It achieves a level of convolution that outdoes even all of PrinceMSC's levels. It would bust brain stems in lesser people, but if complexity is what you're going for, way to go!