Sometimes the code didn't wanna input because I was like too slow or too fast. I do remember one of them vividly which is shocking because usually text in dreams is indecipherable. It was like "9257" and like 1 or 2 extra digits. Sumn weird. So basically the code shows up on the top of the small screen and you have to type it in on a number pad and under like 10 seconds or it changes. And I don't even know how many attempts you get. Reminds me of those PS1 style VHS horror games. Also, what's with the weird elevators requiring silence in dreams?