Per 
Item #: SCP-XXXX
Object Class: Apollyon
Special Containment Procedures: Due to its nature, SCP-XXXX is not possible to contain. However, any media modified by SCP-XXXX, weather it is discovered outside of the foundation or if it is a piece of media owned by a Foundation member that has been compromised, it must be obtained by the Foundation and contained within a secure media archive storage facility at whatever site is most adjacent as soon as possible, as a release of any fictional entity could result in a wide range of catastrophic effects, including an XK-Class, YK-Class, or ZK-Class scenario. In case of accidental release of said fictional entity (SCP-XXXX-1), a mobile task force equipped with the appropriate quantity of equipment and weaponry necessary is to be deployed to locate and neutralize the threat as quickly and efficiently as possible.
Due to the threat that any fictional entity could pose to the wellbeing of our planet, universe, or reality, personnel are forbidden from interacting with any piece of modified media without the permission of the site director. All unauthorized personnel attempting to view any of these pieces of media (SCP-XXXX-2) will be promptly detained and removed from the area with whatever amount of force is needed to complete this task.
Description: SCP-XXXX is an extra-dimensional, extra-temporal, and possibly extra-universal reality bending entity of unknown composition or appearance. That is, if SCP-XXXX has any consistent form or appearance, it has yet to be definitively documented. SCP-XXXX seems to possess the ability to modify quantum mechanics and reality itself at will, and even the ability to bring fictional entities, (Characters, items, or even locations or occurrences) into the real world into our reality, as well as vice-versa. The scientific process behind the latter ability is not yet known, or how Entity-055 is able to alter reality at will, is also unknown. It is theorized that this technique involves altering quantum mechanics, subatomic and elementary particles, such as quarks or atoms, to access a different dimension or reality where these fictional universes may actually exist.
Another ability that SCP-XXXX possesses is psychological torture. Most people who have interacted with items that have been modified by SCP-XXXX (most commonly video games) experience profound negative changes in their lives afterwards. The severity of psychological effects on subjects vary drastically. Some subjects experience nothing at all, while others simply become jittery, some live out the rest of their lives slightly on edge, while others experience effects as severe as suicidal or homicidal thoughts, or experience psychological damage equivalent to the psychological effects of having been kept in solitary confinement for a prolonged period of time. However, any definite particular reason as to why SCP-XXXX does what it does, or why effects on subjects seem to vary in severity from individual to individual would be anyone's best guess. The only general certainty that can be drawn from SCP-XXXX's behavior is that it is malevolent.
None of the victims of SCP-XXXX seem to have any common traits that aren’t completely coincidental, such as:
-unstable life,
-loneliness,
-a life of crime,
-bad mental or physical health,
-an inability to maintain romantic or platonic relationships.
Age, gender, race, socio-economic standing, or social status do not seem to affect the probability of an encounter or the severity of the effects on the subject either. The reasons for someone experiencing the effects of or even encountering SCP-XXXX directly as some subjects have claimed cannot be pinpointed, and it can be assumed that it’s just by pure randomness.
Some Foundation reports claim that after interacting with media that has been tampered with by Entity-055 didn’t experience any psychological damage at all, but rather a sudden bout of terrible misfortune that lasts throughout his or her entire life. Some subjects have been reported as suddenly suffering from disorders or diseases after interacting with SCP-XXXX-2. These disorders include:
-Cancer,
-Arthritis,
-Heart failure,
-Chronic kidney disease,
-Insomnia,
-Exploding head syndrome ,
-Cluster headaches,
-Trigeminal neuralgia ,
-Alzheimer's disease,
-Schizophrenia,
-Depression,
-Psychopathy
There have also been reports of people going missing after interacting with objects that have been modified by Entity-055. In a dozen and a half of them, a mysterious substance has been found in their homes (See Addendum-XXXX-A).
The characteristics of media modified by SCP-XXXX vary, but subjects all report that the changes made to the media were disturbing, unfamiliar and unfitting for the type of media that it was. This has been reported in video games, movies, and TV shows. A common trait between these SCP-XXXX-2 instances seem to be that they are almost always pieces of media aimed at children or general audiences. Very rarely has this been reported happening in SCP-XXXX-2 instances aimed at mature adults, or specifically, pieces of media rated Mature (17+) by the ESRB. Direct encounters with SCP-XXXX reported by individuals all seem to boil down to an encounter with a fictional character (Labeled SCP-XXXX-1) from the video game, TV show, or movie. The behavior of the fictional character is identical to the behavior of the character in the modified media, specifically, it is evil, malevolent and hostile.
It is uncertain if these fictional characters are SCP-XXXX manifesting as the characters in question, or if they are separate entities brought into reality and controlled by SCP-XXXX. There have been a few reports of subjects being sucked into fictional worlds by SCP-XXXX, however, these are few and far between, probably due to the fact that subjects often do not survive to escape and spread the word. How these subjects stumble across modified media vary, from them finding it by chance in game stores or other locations, to the subject playing or watching the piece of media as it were normally at one point, to replay or re-watch it later on, often after a course of several years, to experience effects or an encounter with SCP-XXXX, however the latter has only happened so far with video games. In regards to movies or TV shows, there have been reports of these SCP-XXXX-2 instances actually airing live on Television despite normal playbacks of broadcast history by television agencies. All of this has lead to hypotheses that state that SCP-XXXX may not be a singular entity, but a phenomenon caused by an unknown greater force.
Addendum XXXX-A: In 2000, mysterious substance, labeled SCP-XXXX-3 was found in some of the homes of individuals who went missing after playing video games modified by SCP-XXX. Carbon testing indicates that the substance in question contains the following elements: carbon, iron, nickel, bromine, and one unknown element that has a half-life of only 54 nanoseconds. How this element stays stable within the substance is uncertain, and due to its short lifespan, no atoms of this element currently exist outside of the substance.
The substance itself is pitch-black with a metallic luster, and a hardness and density level similar to titanium alloy. An exploration team consisting of 50,000 researchers were sent to the different continents of the world, and so far, about a dozen samples have been found, such as one from California, and another from western Africa. According to radio-isotope analysis, the one from California dates back to approximately 3,000 years ago, and the other predates the Earth by 600 million years. It can be assumed that SCP-XXXX predates Earth, or perhaps even the universe.
Addendum XXXX-B: In 2004, a photograph of an unknown entity was found in a house of one of SCP-XXXX's victims. How the image was captured was unknown. The humanoid creature in the picture appears to be 6 or 7 feet in height. It's head is shaped like a normal human head. It appears to be wearing an all black suit, with two strange glowing symbols on it's tie. These symbols in question don't correspond to any known tribe, civilization or society, in history. The background scenery doesn't match that of our world, consisting of a series of very strange and disturbing black shapes, as well as an evening sky. It is unknown what the being in the photograph is supposed to be, weather it is, in fact, SCP-XXXX, an entity from a fictional world, an edited photo of a person in a costume, or an other creature related to SCP-XXXX; possibly SCP-582 or SCP-055. The picture does not appear to have an anomalous effects on those who view it, and any connection between SCP-XXXX and and the aforementioned SCPs has yet to be made.
Addendum XXXX-C: Dr. Silva raised the question of possible communication between SCP-XXXX and its tormented subjects. This has begun with the few SCP-XXXX-1 instances that were able to be captured. All attempts of coherent communication between SCP-XXXX-1 instances and Dr. Silva and his research team have been unsuccessful.