"Your original text"
"than level’s 9 darkness"
Make sure to link Level 9 and capitalize it as well.
than [[[Level 9]]]'s darkness
"Once spawned in,"
This sounds too video-gamey
"and, “It’s like 500 people are judging me at once.”
This is too sudden and needs a transition.
and have stated that, "It's like
"with the photo."
Too abrupt
"Find an"
"An" is not the proper spelling, as there is no vowel present. Change "an" to "a"
"as staying for 1 hour makes you go insane."
I personally would remove this part. People don't like the mentions of insanity anymore as it's just baseless and holds no ground against everything else here. Doesn't help that it's been overused so much to the point of the Wikidot hating mentions of it.
"have a 1% chance"
While the M.E.G. is large, this calculation would be ridiculous. Say "a very low chance"
"extremely glitched"
What is "extremely glitched?" Specify this further.
"a Mangled’s fog"
What is a "mangled's" fog?
"Level 9 with your mind"
"ERROR,"
"This File"
"with this file."
Repetitive
"to our staff who can"
"classified the following Level XX file due"
classified the contents of Level ## due to
", and to prevent any more casualties"
This isn't needed.
"to fight off this level."
This sounds too U.E.C.
to figure out the level's effects.
"past, isn’t it"
"But I…I rise"
"Fog"
You have every other instance of fog lowercase. Why is this one uppercase?
"we came. Knowing, that"
Combine these sentences
Overall thoughts:
Honestly was a really good read. Fix this up and come back to the forum.