WIP : Mr. D - Darkness v1.3

Another one? So soon?
Yeah, I practically worked on this most of today, the most work i've done on it in a long time.

Updates since last version:
- Green room is now fully funtional, you can roam without getting stuck anywhere.
- Red room removed, gonna put that back in later.
- Added a symbol to the center room, that'll fall into play later.

I'll add the next version when I complete 1-2 more rooms.