Among general RPG tropes, this has to be up there. Whether it be chasing after Gestahl and Kefka on the Floating Continent, or rushing to stop the Mammon Machine from summoning Lavos, faking out the player with a purported "last" dungeon only to pull the rug out at the last possible moment is a long established classic. And who can deny the appeal of a nice, spicy twist? Post your favorite fake dungeons here! Fake final levels from non RPGs are also welcome.