
Subject_0 in its mist form similar to ERROR_, but instead its color is tinted white and doesn't have red eyes. Subject_0's subject form sports his the appearance of a regular blocky robloxian with plain white skin and the iconic Roblox face, he generates mist from his hand if he needs to or swords colored to him. he has white tentacles and has cat like ears and a demon like tail, despite being a god, he is actually quite cruel, and he enjoys hosting parties for his creation, Subject_1, just so he can lure humans in to kill and eat them.
Subject_0 is a male
Subject_0 kills you in the Bad Ending out of pure revenge of not setting his soul free.
Subject_0’s favorite holiday is Hanukkah, which could hint he’s a Jew.
Subject_0’s voice can vary, since at one point, he sounded like tinfoilbot, while on the other hand he said “FATALITY” in a distorted voice.
Subject_0 sometimes likes being creepy, like when he wrote a sentence for the player’s lungs to make him seem scary (or as 8DSK once said, it could hint he needed better lungs.)
Subject_0 and ERROR_ were once in a battle once a part of him became sentient, and Subject_0 imprisoned ERROR_ in a black cube in the Theatre declaring him winner.
He created many aspects of the simulation and virtual beings, such as the humans, and Bob the Monster Wall; he did not create the Rift however as it was built into the simulation by itself.
Subject_0 is an actual god, as he was mentioned by Stalker in one of his lines and was confirmed that he created most of the aspects in the game, such as the Non-Subjects.
Subject_0 is the first person to enter the simulation, having full God-like control.

Subject_0 behind a window.

Subject_0 in the Fake Party Ending, exclaiming his desire of tasting the player's lungs.

Subject_0 blocking the player from returning back, letting out yellow particles.

Subject_0 outside a window during the Refusal Ending.

Subject_0 in the same ending behind the couch.

Subject_0 during the Virus Ending before “crashing” your game and giving you the code.

Ditto, but more far, exposing more of it's aura.

Subject_0 's human form as seen inside its capsule in the Good Ending.

Proof that the Bad Ending was all just revenge on Subject_0'send.

Ditto, but more clear.

Ditto, but farther away.

Ditto, but so close you can make out its appearance.

Subject_0 levitating with his arm out.

Subject_0 levitating again during the Re-education Ending.

Subject_0 's supposed "disguise" during the Sacrifice Ending.

Subject_0 represented as an angelic figure during the Ascension Ending.

Subject_0 in its mist form near the D.E.R.P.

Subject_0 standing over the player, observing them after their murder of _ERROR.

Proof on Subject_0's name.

Subject_0 in the EASTER UPDATE.
Subject_0 being a bitch again
Subject_0 in its mist form similar to ERROR_, but instead its color is tinted white and doesn't have red eyes. Subject_0's subject form sports his the appearance of a regular blocky robloxian with plain white skin and the iconic Roblox face, he generates mist from his hand if he needs to or swords colored to him. he has white tentacles and has cat like ears and a demon like tail, despite being a god, he is actually quite cruel, and he enjoys hosting parties for his creation, Subject_1, just so he can lure humans in to kill and eat them. Subject_0 is a male Subject_0 kills you in the Bad Ending out of pure revenge of not setting his soul free. Subject_0’s favorite holiday is Hanukkah, which could hint he’s a Jew. Subject_0’s voice can vary, since at one point, he sounded like tinfoilbot, while on the other hand he said “FATALITY” in a distorted voice. Subject_0 sometimes likes being creepy, like when he wrote a sentence for the player’s lungs to make him seem scary (or as 8DSK once said, it could hint he needed better lungs.) Subject_0 and ERROR_ were once in a battle once a part of him became sentient, and Subject_0 imprisoned ERROR_ in a black cube in the Theatre declaring him winner. He created many aspects of the simulation and virtual beings, such as the humans, and Bob the Monster Wall; he did not create the Rift however as it was built into the simulation by itself. Subject_0 is an actual god, as he was mentioned by Stalker in one of his lines and was confirmed that he created most of the aspects in the game, such as the Non-Subjects. Subject_0 is the first person to enter the simulation, having full God-like control.