Fantastic work! I loved the demo, but here's all of the bugs/oversights I discovered while playing:
General:
There are not "ghosts" of collectables, showing that you collected them before, if you restart a section (or the game)and try and find collectables you grabbed before the restart, the only way to know you grabbed them is to check the menu, which could grow tedious in the future with a large amount of collectables.
There is no way to easily cancel an item action. (ex: grabbing an item in your inventory, but not having anything for it to interact with. It can be 'canceled' in a way by interacting with Ms.Happ while holding it to perform the usual, "I don't think that's what I'm supposed to do" dialogue.)
Performing an action while Ms.Happ is drinking from a cup will cause the cup to stay attached to her hand.
Office:
The "Out of Order" sign on the restroom uses the inspection description of the adjacent fire safety poster.
You can't inspect the elevator buttons.
There is an invisible box between the Water cooler and the nearby table with tech support poster, you can interact and inspect it, but it just isn't there. (At least on a second playthrough)
Interacting with a chair with the brown jacket on it causes the chair to clip through the clothing.
Cups with straws in them cannot be interacted or inspected. (Minus the "Lardies" cup on Eighton's desk, that one works fine.)
The cubicle with the Jacket doesn't have the same name as the one in the note.
You cannot close the storage closet door.
Elevator minigame:
Upon player defeat, the minigame's progress bar doesn't reset, but the progress itself does properly reset.
The "Copy the Boss" minigame doesn't state that you have to Press And Hold the appropriate key, not just Press.
Bedroom:
The door handle isn't interactable either on the first attempt, if you interact with the pizza menu first, or if you're directly in front of the electrical box (most likely either the third reason or a combination of them all.)
The Pajama shirt will turn towards the camera during the bath cutscene as if interacted with if you interact with the Pajama shirt before the bath cutscene.
The phone cannot be interacted with or inspected when the receiver isn't present.
Collecting all the dirty laundry and putting it in the basket doesn't seem to do anything, or there is a bug with the spawning of the reward.
Cell:
The lock's code is a bit messy, but the code does reset properly after each run (it just seems to be a little stubborn).
If you interact with the vent when it is open, it closes itself and only opens when you talk to The All Knowing again.
You can't inspect the Prize Slammer.