Too much file-diving can be a dangerous thing, as one YouTuber found this out the hard way. Brace yourself: this takes a lot of the mystique out of Doom’s Imps, Cacodemons and the rest of the hellish hordes.

When it comes to Doom, you might think that there’d be no more intriguing little details left worth poring over. It’s one of the most influential and popular video games of all time, after all, and helped to shape the entire FPS genre as we know it today.

The game has been ported to just about every system known to humankind, and will probably continue to see release on sentient refrigerators in the year 3000. It’s been modded, re-released, spoofed, and rebooted to within an inch of its life. But even superfans may not know how important a part cats and camels played in that glorious legacy.

From the haunting shriek of the doors to the howls of various monsters, classic Doom is rife with little sound effects that have become firmly embedded in our psyches. Every weapon and critter makes its own distinctive sound, and as Kotaku reports, YouTube’s decino has brought the world a deep dive into the real-world origins of these sounds. It’s a fascinating watch.

There are a total of 107 sound effects in the game, we’re told, and a lot of them are stock sounds (edited to varying degrees) that pop up in a range of titles. It may not be that interesting to learn that the sound of an Imp’s melee attack comes from a stock ‘Heavy Cotton, Long Tear’ sound, but an Imp’s death grunt deriving from a vocalizing camel, or the dying sounds of a Cacodemon actually being produced by a mix of in-line skates and roller blades? That’s just priceless. Check out the video below for more ridiculous insights:

Yes, those Imp snorting sounds do come from a baby jaguar.

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