Woah! I am very surprised how you pulled this off in one week!
The only sad thing, is that the game has no current goal. And it also does not has too much to do with the game jam theme :/
Nice game you got!
The rooms are the collectables and I believe it follows the theme of "there and back" in the sense that it encourages you to reuse the same rooms (rotate them) to get to where you need to. That or I don't understand the theme very well.
Ok.. i think i got it now! :)