Amazing game! How are you supposed to find the 3rd number in the exit code though? Had to brute force it since I couldn't figure it out.
It's in a fake wall, which you see as striped if you look at it from behind.
Is it these ones? I couldn't find anything to do with them
Checked them again, I found the way to get in. In my opinion it should be more clear which way you get into the wall from, since the wall encompassing the whole block really confused me.