As a long time game developer, the most impressive part of this game is that when you get to the end, and you don't have all the keys, you can simple break all the locks.
That's the kind of game design that the game industry needs to learn from.
That's the kind of game design that the game industry needs to learn from.
Plus it's not like most AAA games nowadays punish you for anything at all to begin with, so having you actually hit a situation where you have to experience the inconvenience of loading a save that takes you back 30 seconds is ultimately just a waste of everyone's time.