past the first few levels, that game kinda stops being fun. I remember feeling that when it was new, but I forced myself through the whole game anyway over some months.
~Chara
I still find Doom 2 to be a super fun game, but I do remember the quality of the levels becoming questionable.
Due to them trying to go for a 'hell on earth' theme, there were often maps with self-contained buildings in an outdoor area, making it hard to figure out where to go next. Specifically, I remember a keycard or switch hidden behind a wall that you had to shoot - in a game where up to that point, just pressing the use button on a hidden wall would make it open.
It's one of those moments where I got stuck on the level forever the first time I played it, and was getting bored, but now that I know it exists I can breeze through the game and find it fun again.
Doom 2 occupies what I think is the most significant rift between "quality of original game content" and "community's use as de facto modding standard." Because, if I'm honest, Doom 2 is very much the sequel that, by most factors, did not need to be; the majority of the levels were handed to Sandy Petersen, who is generally regarded for having a fairly questionable sense of map design (the aforementioned shootable switches/walls being only one of a series of grave sins).
But then, the community also generally agrees that most of the useful monsters for encounter design were introduced with Doom 2, and in fact, some of the better fights in Doom 2 involve the new monsters. So the overwhelming majority of new levels are designed for Doom 2, and the only reason anybody still makes any for original Doom is if they prefer the episodic format for some reason.
This ultimately makes Doom 2 the kind of game that, in fact, completely Rules, while also having a base level set that I almost never want to play through.