So... I kept playing for a long time but I didn't see any of the things people talk about here. I am very intrigued and it's 4 am so I will play this game some more tomorrow to see what is finally gonna happen because there's some weird charm in walking from wall to wall and pressing random buttons that I cannot explain. Really a good job with the mystery of it all.
Edit:
went back and played a lot more got to 49 on one wall and freed a guy from ice haha but then got too much running back and forth so I stopped playing, hopefully will come back and finish the game one day!