I was researching and ZOOMED through hundreds of just unavailable levels... it's strange how little of this place has been written... anyways, I was researching but when I got to level 3,999 I noticed something interesting. "If you complete all the tasks on the paper, then the door will unlock and you will be able to go to the frontrooms." So that means that there is a way out! It's going to be a while but at least I know I CAN get out.
@Bob-FNF for the Bluuerooms. GreenRooms Studio: https://scratch.mit.edu/studios/51088439/