Theimperfectbeing wrote:Correct.

Theimperfectbeing - 18
Akatos - 26
autotroph - 28
WatrGun - 13
ApplePiah - 20
Omniary - 18
Firefox - 10

Safe

In the facility
Is a humorous oddity
You wonder why it is there
As it makes some noise behind your back

The Duck with the Saxophone.

It's in the Three Way Corridor.
It's an unusually bright Object in a Grim Environment.
Anyone would question why it is there.
It's little Saxophone Solo.

Haha... It's [REDACTED]

Updated : DARN YOU FIREFOX STOP IT :(

... Stop what?

I'll assume Firefox got it correct, but here's an alternative guess anyway XD

Theimperfectbeing wrote: Safe

In the facility - the restrooms
Is a humorous oddity - a joke SCP
You wonder why it is there - no wonder
As it makes some noise behind your back - it screams 'I will eat your butt!'

The Butt Ghost.

Even though I know that already has had a riddle, so I'll assume the real answer's the anomalous duck that makes saxophone sounds, as said again by Firefox. I'll just post my own logic anyway.

In the facility - in the 3-way gas room
Is a humorous oddity - an anomalous object
You wonder why it is there - no wonder
As it makes some noise behind your back - A slightly discordant sax sound, actually

Firefox got it.

Theimperfectbeing - 18
Akatos - 26
autotroph - 28
WatrGun - 13
ApplePiah - 20
Omniary - 18
Firefox - 15

Safe

In the facility
Wanders perpetual rot
As it slowly pursues you
You will not survive

EDIT: This is my 666th post! How terrifying!

Theimperfectbeing wrote:Firefox got it.

Theimperfectbeing - 18
Akatos - 26
autotroph - 28
WatrGun - 13
ApplePiah - 20
Omniary - 18
Firefox - 15

Safe

In the facility
Wanders perpetual rot
As it slowly pursues you
You will not survive

EDIT: This is my 666th post! How terrifying!

SCP-106?
It has breached since an early point of the development...
It leaves behind weird mass (I don't remember what it says in the document)
It is very slow an tries to get you...
And it drags you into the pocketdimension and it is hard to escape if you choose the wrong path or this is meant as in it can walk anywhere and go through walls...

Correct, but next time try to do a line by line.

Theimperfectbeing - 18
Akatos - 26
autotroph - 28
WatrGun - 13
ApplePiah - 20
Omniary - 18
Firefox - 15
Precipitator - 5

Safe

Safety in not only numbers
but in skill too
No obstacle can stop them
And they will find you

Theimperfectbeing wrote:Correct, but next time try to do a line by line.

Theimperfectbeing - 18
Akatos - 26
autotroph - 28
WatrGun - 13
ApplePiah - 20
Omniary - 18
Firefox - 15
Precipitator - 5

Safe

Safety in not only numbers
but in skill too
No obstacle can stop them
And they will find you

The Mobile Task Forces because

They enter the site with six members instead of an single one
They are armed and know how to deal with the escaping SCP's
They will not get stopped by anything(Like escaped SCP's, enemy forces)
They will try to find and terminate you

Correct.

Theimperfectbeing - 18
Akatos - 26
autotroph - 28
WatrGun - 13
ApplePiah - 20
Omniary - 18
Firefox - 15
Precipitator - 5
AveryLP - 5

Safe

Only doing the dangerous tasks
The Foundation has little use
For these human crash dummies
But some were going to die anyway

BONUS RIDDLE!!!!
Submit via PM. From SCP Series 1: http://www.scp-wiki.net/scp-series
MUST USE LOGIC

What was I writing?
Oh, that thing.
What was it?
Not a sphere...

Theimperfectbeing wrote:
Only doing the dangerous tasks
The Foundation has little use
For these human crash dummies
But some were going to die anyway

Class D Subjects.

They are used to perform Dangerous Tests with SCPs.
The Foundation pretty much does whatever they want with them.
The Old Models in the Earlier Versions of Containment Breach resembled Crash Test Dummies.
They are going to die regardless on how successful each test is, Usually terminated at the end of 30 days.


Response to Bonus Riddle sent.