If you use the Fairy spell when you're on the very top of the screen, then you warp to random places. The funniest one is in the town of Darunia -- you can jump on top of the houses to make it to the top of the screen. When you warp there, you end up in this glitchy town. One weird thing is that there's a sign that has text that you don't see anywhere else in the game -- it says:
IT IS SAID
THE EAST
OF NABOORU
HAS...
Not to mention that the town is really glitchy. Enter a door and you start back on the left of the town, and the music changes as if you're inside. Crazy things happen and they're seemingly random every time. Just look at the video!
Oh, and there's another character who says something weird: