I have gone through this old thing and I was appalled by amount of problems that were not fixed and are not acceptable by my current standards. Past me, you were such a lazy ass that I can't believe I am less of one . Thus, an update.
Spoiler:I took the opportunity to change various things I was unhappy with back before then, fixed one broken puzzle and streamlined several less obvious puzzles that might have been ignored by people outright because there were very easy sequence breaks to them. Music tracks are now also different. Finally, the wad now *actually has a titlepic*. Wild, isn't it.