Stuck in the Four Tubes

[aquaMat]

I'm not quite sure if I understand you correctly ?!?

ALL doors at the beginning (top) of THE FOUR TUBES are equally important.....  none of them is only

for show

.

In fact, I can't think of a single door in the whole mansion, that is not as important as all others.

I don't know if you're aware of it, but the special

feature

of The Four Tubes is that the player can choose FREELY which tube he wants to visit first..... so each game is a little different....  and therefore ALL doors are equally important !

In fact the mansion is constructed in such a way, that - no matter what you do first (and when) - you will always be guided through the rest of the mansion.

As for your 2nmd question..... if I should guess what you mean... yes - to a certzain extent backtracking is possible (at least to where I think you want to go back to).

(Sorry for being so cryptic, but I don't want to spoil it for others.)  8-)