hey, this was an one-man-show :-)
So your warm words were even warmer! Thank you!
The 5/5 Team are the Betatesters and the guys who had to listen to my ideas.
That you can go upstairs with 5 of 6 was a bug which become a feature. While testing, I turned it down to 2/6 and before uploading it, I reset it but maybe I counted wrong :-)
There are six findable. Two and four, separated in rooms.