You can tell this game was incredibly formative for so many puzzle games that came after it. You can feel it start to explore the limits of what video games can be, especially geometry-wise, which to my knowledge was never done to this extent before.

I think it would have been a much more impressive game had I played it on release. While figuring out how rooms link together it nice and novel, it rarely has any bearing on the actual puzzles (and when it does it's slightly annoying). Beyond the fun level layout the actual puzzles themselves are basic and largely uninteresting.

But really these criticisms are only relevant in hindsight. It's an incredible play, even if it does feel dated due to its influence. A must for any fan of puzzle games, and I'd even recommend it for everyone if nothing else for some of the "woah cool" moments you get.