Belial's Bad Brain

It was decent. Sometimes it felt like the map didn't know what it wanted to be, so expect parts where you're randomly just shooting 1-2 imps at a time. There was also a bit too much health and ammo, and I beat most of the level without using cells. Perhaps the level was designed with speedrunning in mind?

Besides that, great visuals and somewhat decent gameplay in some areas. It's not too long, I (almost, missed the first secret) maxed it in just under 2 and a half hours (including deaths), though I really took my time on the level.

Overall though, I'd say this is a case of a slaughtermap kinda getting it right, with a mostly straightforward progression, plenty of ammo (though again, a bit too much, as it starts to wane on the difficulty), and parts that are actually fun. There's also some room to be creative in fights, so don't expect a lot of generic, boring, drawn out, switch hunt, linear do-exactly-this-or-the-fight-is-impossible slaughter gameplay (not to say there aren't some generic boring parts). I'd say it's worth at least checking out.

3.5/5, though rounded up to 4 because I'm a nice person and stuff.