I like it. It looks like the assets were made by hand in Godot, which I really like. It's creative, simple, but effective. I also like the atmosphere.
I feel like some sounds are still missing here too, either from the enemy or just some random ambient noises.
A few times, I had absolutely no idea where the keys had spawned, and I couldn't find them anywhere. I restarted the game several times just to get the first key to spawn somewhere accessible.
Unfortunately, I couldn't get the key out of the safe, so I wasn't able to finish the game. :( Even selecting the safe door is already quite difficult, but selecting the key itself feels almost impossible.
It might be worth placing it on a table or somewhere else where it's easier to reach, or perhaps making the safe a bit larger.
Other than that, great work! Let me know if you fix it, or if I'm just being an idiot and there's actually a way to pick up the key. I'd love to play through the whole thing.
One more thing: because of the black background and dark gray text on the itch.io page, I can barely read anything.