The Return of Ishtar/Water Duct


 * Ki and Gil will enter this room through the door at the top-left of it. It contains two "Blue" Super Ropers (which are yellow), four Yellow Oozes, four Pink Oozes, four Dark Yellow Oozes, four Dark Green Oozes and one Land Urchin (which will immediately invalidate Gil's energy fraction contact).
 * The key at the top-left of the room opens the aforementioned door at the top-left of the room, and the key at the bottom-right of the room opens up the door at the bottom-right of the room. The aforementioned door at the top-left of the room leads back to Secret Staircase (Room Pass: Q32 - it's same as Library) - and the door at the bottom-right of the room leads all the way back to Water Line (Room Pass: YF7). Therefore, in retrospective, using the "Password Game Continue" option on the start screen in order to reach Under the Moat would not have been such a good idea, after all...