Gallery of Time Back Floor
Ok so to be frank with you the Gallery of Time does not have a back floor on the English release of the game. As the story goes since the Demon Shaft isn't part of the Japanese release of the game, we got that dungeon as an apology for the Gallery of Time's back floor being excluded. Honestly if you ask me the Demon Shaft is a much better dungeon than having the back floor for Gallery of Time. It's essentially a dungeon as long as all the previous ones you've done combined. It's awesome!
Anyway you may be asking what is the purpose of this page then you ask? Well, you had a question and I answered it didn't I??!?!