@ JamieD347: Now, I'm not sure if I'm right, but I think this game is a sequel to a game called Necronator or something like that. It could be the other way around. But still, there is Necronator (lol)
I think it would be cool if you could make keys only open up one certain door. I think others would to, becasue if you try to make a "boss-box," or something with doors, you'll put the key somewhere near the door, right? Well if theres the same door and key in a different area, and someone gets that key, the door opens, in the area that is not meant for it to be opened. So keys should be assigned to certain door. Click [+] if you agree.