This is a nice short hold and a decent challenge that doesn't overstay its welcome (although coming so soon after the hot tile rooms of Complex Complex, it perhaps suffers ever so slightly).
The rooms are, for the most part, well crafted - the aumtlich and fegundo rooms, as mentioned above, make for interesting challenges when turning is forbidden, and the adder and rock giant manipulation puzzles are also neat. On the other hand, it turns out that clearing mud, tar, and especially gel with a fixed sword orientation is slightly tedious, but you can't win them all.
Well worth playing!
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