Powering up the boobs sounds excellent. Even if it's a mostly cosmetic thing (might need to widen some doors, though, like the offices).
Oh, one other thing I noticed, dunno what you want to do about it though:
Obtaining and using [Redacted 1] will arbitrarily set your max fill, resetting appropriate upgrades from [Redacted 2]. Max Fill ends up resetting to its base value when [Redacted 1] is turned off (does not undo the use of [Key Item]).
So.... I managed to pull this off... I had triggered a teleportation secret in Level 5 that lead back to the starting elevator, but the elevator wasn't there. I walked off and.... This.