This is impressively detailed! It nailed the feeling of being an actual walkthrough with all sorts of small features: the formatting, the references to version differences, controls, and technological limitations, and the general tone of being written by a passionate fan. (Something I didn't think about much in my entry, but which you addressed here, is having the imaginary writer say something about how they feel about this imaginary game.) Even the way it starts out "YO, PRO!" immediately gives the sense of a slogan that people who've played the game should know about.
Beyond the surface details, this does an excellent job of sounding like a plausible description of a real game rather than just a collection of statements: at no point did the glimpses you included feel like they contradicted each other or didn't mesh.
If anything, the authenticity and detail was a little too much for something that's being read in isolation. One thing that didn't come across very clearly is what the primary gameplay loop is, and what the experience of playing is like -- perhaps not the highest priority for an actual walkthrough, but it left some vagueness in the picture that built up in my head while reading this, and made the explanations of controls and mechanics feel a bit dry.
Nonetheless, my first reaction to reading this was "this game sounds intriguing!" In particular, there were a couple of mechanics that stood out to me as clever ideas. The line about "tiles you have seen begin revealed, but slowly degrade back as your memory fades" was very evocative. And the mechanic of figuring out the cryptogram connecting zone names to their contents was neat!