Even the items the Game Master gives you are not immune. Specifically, the pliers you can use to pull out your teeth, and the knife designed to yank out your eyeball. Worst part? To progress the plot, you must use the knife.
The Game Master's appearance finally being revealed near the end of your time with him. Leshy resembles a Plant Person with the facial structure of a bearded old man.
The pile of clothes in the corner of the Game Master's back room is actually a body pile. Apparently, when he takes pictures of someone, their soul enters a new card while their physical body is left behind.
Getting a good look at the boxes in the back room shows that Leshy hid P03 and Magnificus' corpses behind them. Grimora? Looking at the safe her card was in in Act 2 implies that's where the meat pile was from...
Leshy still wants to seal you into a card even after you've beaten him. You nab his camera off the shelf, and he goes absolutely berserk,shouting"YOU ABSOLUTE INGRATE! GIVE IT BACK!" at the top of his lungs (as shown by the text becoming red) and throwing himself on top of you in a mad struggle for the camera. He gets his comeuppance immediately after, being erased from the physical world, only a card of him left behind. Congratulations, you've finally defeated... the Disc-One Final Boss.
The Great Transcendence, an ominous future event mentioned by Magnificus in a letter of warning to Grimora. It turns out to be the master plan of none other than P03.
Your good old friend, the Stoat? That's the Scrybe P03, described by Magnificus as being far worse than Leshy ever could be. It makes good on this claim when it forcibly takes over the game itself and becomes the final Big Bad, glitching the screen and causing it to flash rapidly as it becomes three-dimensional right before your very eyes, growing larger and larger until finally it is the one controlling the board in what used to be Leshy's cabin.
P03 and the other Scrybes' situation in general. Your former friend — or at the very least, acquaintance — imprisons you in a body that is not your own inside the paper of a card. Depending on who you are, you either get locked in a dark cavern for what's implied to be years without being taken out or cared for OR you get forced into endless repetitions of a game designed to kill you repeatedly and in very painful ways.
The Great Transcendence is actually P03's plan to upload the game to the internet, meaning that it will spread infinite versions of itself and all other characters all over the world, where it gloats that in the vast majority of them, it will rule over everything. Then Leshy sneaks up from behind it and tears its head clean off.
Even the Bone Lordexercises immense caution when talking about it. He asks Luke to stop recording when he explains what OLD_DATA really is, and when the recording resumes, both Luke and P03 are freaking out.
The first conversation with the Bone Lord in Act 2 takes place in a dark pit below Grimora's crypt. The pit is filled with a massive skeleton wearing a tattered suit with a pack of playing cards in its breast pocket. This is alone is disconcerting, but the ARG makes it even worse: The corpse is Hitler and the OLD_DATA was derived from those cards.
Luke has no choice but to open the file containing OLD_DATA at the end of the game, and upon seeing it for what is really is (REDACTED), he has a complete breakdown, hyperventilating as the screen glitches out. He ejects the game and starts repeatedly smashing it, looking like all his sanity has gone straight to the boiler room of hell.
Notably, Luke is wearing gloves while doing this. Whatever on there was so horrible he doesn't even want to touch the disc with his bare skin.
And the worst part, it doesn't work either; the hammer just seems to bounce off without even making a dent. The OLD_DATA is that resistant.
Even as a DM during Act 3, P03 is not in complete control. Under certain circumstances, you can enter a room he's not aware of... and suddenly be taken over by the Mycologists, whose faces on P03's screen are very, very real. They then challenge you to an "experiment," merging their cards together, then yours, before somehow making off with a piece of the OLD_DATA and departing. P03 is left entirely unaware of what happened other than feeling "terrible," and perhaps the most dangerous individuals in Leshy's roster (if anyone's at all) have ran off with something both powerful and horrifying, unaccounted for the rest of the game.
If you look closely, a Freeze-Frame Bonus has Amanda's face transform into that of Sado◊ from The Hex, right when she blows Luke's head open. Knowing that Sado successfully entered the real world at the end of her game, might we be looking at her right now?
The simple fact that OLD_DATA is so powerful and terrifying that GameFuna will go to any lengths to hide its existence, including committing murder in broad daylight. It's implied that Kaycee Hobbs, one of their past employees, was disposed of because she also knew too much.
The end of the ARG revealed a short video of Luke's computer sitting unattended, text showing the halted upload of the Transcendence version of Inscryption. Then the upload resumes and completes before a smug ASCII stoat face appears. P03 won in the end and OLD_DATA, something which cannot be deleted once it takes root, has reached the internet, a place where nothing can ever be truly wiped out once it goes up there.
The Developer Notes in Kaycee's Mod show that after learning more about the OLD_DATA from the Carver, Kaycee now believes that somewhere out there is a secret Nazi doomsday device and all it would take to activate it is the Karnoffel Code hidden in Inscryption's OLD_DATA. She's tempted to throw the disk into the sea on learning this, but then considers that the code may be what's needed to disarm the device, and there's no way of knowing for sure.
With P03 successfully uploading his copy of the game to the internet, the Karnoffel Code is completely uncontrolled. If the wrong person gets their hands on it and manages to work out what it can do...
The Developer Notes also show that early on while testing the simplistic 8-bit version of the game in Act 2, the Angler just up and started moving by himself while Kaycee watched from outside the screen, and in a following session Leshy spontaneously turned himself and the world three-dimensional. This is not a thing normal video game characters should be allowed to do.
◊ from The Hex, right when she blows Luke's head open. Knowing that Sado successfully entered the real world at the end of her game, might we be looking at her right now?
