Some time ago Maarten ter Huurne made a save data to enter in an "extra" stage. I found that place is inside the castle of Seed Garden:
It seems it is somekind of "Survival World", where we should not go.
Another unknown place is this. I have no idea what it could be for.
Thanks 
I don't know. Probably you can't enter without cheating (that's what I did!)
But probably the original idea was to enter there and find something usuful, an evidence or whatever.
that last screenshot looks a bit like the queen hospital... with light... what did you do to get it... and did you make a save of that?
That room is located in the same map of "Survival World". I found it "scrolling" manually the map.
Yes, I have a a data save.
how did you find out it's inside that castle in syd garden? and the katakana does say "Survival World" indeed.
I was walking in Syd Garden and I tried to enter the castle. That's all. I try every door I find 
