You get softlocked if you enter the correct code but back out of the keypad before the door opens. happened to me once on the door to the breaker and I didn't realize it was a bug until I tried again the next day and I did it again on the color keypad. Oh, and it's too easy to brute force the final keypad without solving the painting keypad. Minor gripes/pet peeves, I wish there was an fov slider, or at least a higher base fov, and a sensitivity slider, although those are mostly just personal critiques, the game functions fine without them.