This is a "short" guide, what the "Sticky Key"-Glitch is and how it works^^
We all maybe already know it - if we press the Shift-Key 5 times on our keyboard, a window called "Sticky Key" tries to help us allowing to enable the feature with the same name. Especially since sprint in this game is located on exactly that key, the window maybe already occured to yourself + you probably already disabled it in the settings.
But - How can this feature actual be useful in the speedrun? Let's take a look to the game. "Spooky's Jumpscare Mansion" or "Spooky's House of Jumpscares" is created in Gamemaker. In order to schedule several timed events in the game, there is a timer running inside of the process. The best example for the Timer would be the check, if you are to long afk (and Specimen 9 will spawn). Why i pick this thing? I will explain it below.
In order to know how long you are actually afk, the game requires to log that. Thats done with the timer. The timer is supposed to stop, when you pause the game. Makes sense, since nothing should happen if you are in the Pause-Menu + Specimen 9 can't kill you there. Also: The game want to have your inputs. This should make sense, since the game need your mouse and keyboard strikes in order to know what you want to do. The game "locks" the mouse for that on the middle of the screen. If you now move the mouse, the game notices that, let you move/view ingame and set the mouse back to the middle of the screen.
Now we have Sticky Key: In order to leave the program, you need to Pause the game, so the timer stops and the game no longer cares abour Inputs. You can now freely move your Mouse and went into your browser or whatever. But: What happens if we leave the game, without pausing it? Sticky Keys makes it possible. Once you open the feature while you are ingame (not in Pause) the Timer breaks b/c of your missing Movements. This causes the timer to speedup and skipping entire cutscenes, including the elevator.
The trick basically works with every program opening in the foreground without pausing the game. Using the Taskmanager or creating own hotkeys for that is also possible, making this trick reproduceable for every computer and OS the game runs on. I prefer "Sticky Keys" anyway, since pressing 5x Shift is pretty fast done, especially since you already have your finger on that key for sprint.
A short demonstration and setup can be found here:
The final question that is now left: Why the Specimen 9 example? Let's think a second about it, do we miss something? The solution already is upper that line of text.
Solution: We don't basically "skip" the cutscenes, we increase the timerspeed of the game using a bug everyone can use. The screenevents of the cutscene update after we interact with that, but basically: EVERYTHING in this game is faster until we are back on fokus of the window. Including Specimen 9. While Specimen 9 can't spawn in the DLC, the glitch is unproblematic there. But on the normal game you need to be careful. You need to be long enough out of fokus to speedup the cutscene, but if you take to long to close the "Sticky Key" Window, Specimen 9 will spawn. Since the Timer also affects the Movement and Hit Speed from Specimen 9, you are basically instant dead once he spawns.
"Be careful with the power you have, it may enhance your run, but it can also break it".
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Update from 10/07/2018
It has been a while the discovery of the Sticky Key Glitch. Recently, the user @Lagloyavich revisited the glitch. As the glitch basically skipped time while the DLC "Kalamari Hospital" can't spawn Specimen 9, the glitch can be used to restore Stamina on a longer distance. This also counts for any visual skip besides Cutscenes, such as the Screenfade after you kill a monster (demonstrated in his current run on the monster "The Virus".
You can find his run here:
