Wolfenstein 3D/YMMV

"TO: BIG BAD WOLF
 * Adaptation Displacement: few people are familiar with the original Castle Wolfenstein.
 * Demonic Spiders: The mutants, especially in groups of three or more. Mutants do not make a noise when they see you. They can also shoot you as soon as they see you. Every other enemy in the game will make a noise when they see you and take a brief pause before shooting you.
 * Ear Worm: The whole soundtrack is really catchy.
 * Genius Bonus: One of the soundtracks in Episodes 3 and 6 has a Morse Code message in the background:

DE: LITTLE RED RIDING HOOD

ELIMINATE HITLER

IMPERATIVE:﻿ COMPLETE MISSION WITHIN 24 HOURS

OUT"


 * Goddamned Bats: Literally, in the Lost Episodes of Spear of Destiny. However, as they are pretty much just remodeled mutants, they behave more like Demonic Spiders.
 * Porting Disaster:
 * The SNES port. The disdain that the majority seem to have for it is due to censoring, instead of any major gameplay-affecting factors such as simplified map design or fewer levels, anyway.
 * The GBA port, which was more mangled than the Doom port despite being a less complex game.
 * Seinfeld Is Unfunny: A common complaint of newer reviews (specially the GBA, which had the problems listed above).
 * That One Boss: The Death Knight in Spear of Destiny. It doesn't help that he's surrounded by absolute swarms of regular mooks either.
 * That One Level: Episode 6, level 9 from the original game and levels 16 and 18 from Spear of Destiny qualify.
 * Episode 6, level 7 has a bad reputation as well.