Uploaded January 2018 | Updated September 2026, 3 weeks ago
Psycho strings song that will play when a major boss fight is about to happen or appear.
The Unhappy Orchestra
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The Unhappy Factory OST - Dead Silent (Pre-Boss Arena)
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![The Unhappy Factory [Unused] OST - The Grinder (HPP Offices)](https://i.ytimg.com/vi/XBaVUxV89PI/mqdefault.jpg "The Unhappy Factory [Unused] OST - The Grinder (HPP Offices)
The grinding room was going to have a theme, but there was no point in adding one since the moment you walk around the room, Professor Pascals theme would interrupt. It was originally going to have an industrial parkour section, but it was cut and instead now goes straight to the boss level. (The pistons in the room are a leftover of the original parkouring idea.)")
