* CultClassic: Bungie's first real commercial success, and a perfectly good game by the standards of the time, but it was released on Macs only, limiting its customer base, and faded into relative obscurity.
* DemonicSpiders: Skitters, the near-literal spiders, especially their [[UniversalPoison venomous]] variation, and Greater Nightmares, who shoot homing plasma balls and can only be damaged with certain ammunition.
* MemeticMutation: "I've got a bone to pick with you!" became a fairly big one after WebVideo/MandaloreGaming's [[https://youtu.be/MQKX07MlVjg review]]. Amusingly, a lot of people apparently thought this audio sample was actually part of the game after watching the review.
* SugarWiki/MostWonderfulSound: The Nightmare's death noise where they explode in a wet squelching sound is incredibly satisfying.
* NarmCharm: The monsters are goofy and look (in the words of [[WebVideo/MandaloreGaming Mandalore]]) like "glorified Halloween decorations", but they're supposed to be created by the dreams of an EldritchAbomination, and at any rate have lots of personality and rather unique designs that accentuate the bizarre alien nature of the pyramid.
* NightmareFuel: There's an unused error message that simply reads "The Dreaming God has awakened". In the final game, there's any of the endings that don't involve you escaping alive (or living for much longer afterward).
** The dead people (Nazis, Cuban explorers and US Special Forces) you can talk to mention how death is cold and dark and [[AndIMustScream they're stuck inside their corpses]], gradually losing their senses and memory.
** Speaking of those dead people, many of their bodies have been literally torn apart or dismembered by whatever killed them.
* PolishedPort: A [[https://simplici7y.com/items/aleph-one-pathways-into-darkness/ fan made port]] to the Aleph One engine is about the only way to play the game today without busting your ass trying to get a Mac emulator running. Thankfully it streamlines the interface and allows higher fidelity graphics and sounds, mouse look and widescreen support.
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