Thanks for the feedback!
1. About the door, I actually forgot to set it to locked during my last build since I was rushed *we got the game submitted with 9min to spare*. Once the jam is voted on, I will be updating a few things.
2. About the hint, there may be a connection between the code and how the numbers are placed on the keypad... That should help you figure out the two missing numbers/letters. *In the future I may have more of an audio hint to this too.
3. I could have sworn compiling the game would have removed those print statements. Maybe I used the wrong compile type. I'll update that once the jam is done being voted on too.