Game Idea- HOTEL

Main character enters a hotel with no memory.
Clerk who is a little too friendly tells him he has a reservation.
You go up the stairs and are greeted by a long hallway you can't see the end of.
If you try to keep going it repeats like the mario64 stairs.
Each room in the corridor is themed in different ways.
Haunted artist studio, picture gallery with ruined or unrecognizable photos, etc.
Each room has the key to the next.
As the game progresses, in the hallway there are small tremors and pieces of the ceiling start falling off, rubble will block the way to already completed rooms.

The hotel is your mind.
You're trying to rediscover who you are, but you are dying.
That's why the hotel is collapsing.
The final room at the end of the corridor is your dark secrets and inner demons.
You have to conquer them to wake up.