The Legend of Zelda: Ocarina of Time Easter eggs

The puzzle blocks don't fall...?
Please note: You can do this only if you haven't already beaten Amy the Poe Sister that took the green flame.

Go to the place where you need to move puzzle blocks to form a picture of Amy, which is after the Maze of Doom(the room with falling ceiling). However, don't shoot at the picture... yet. First, stand in one of the shadows of the floating blocks. Now shoot the picture. The picture goes red for something like 1/2 of a second, but nothing happens. However, when you move out of the shadow, the puzzle blocks will drop. Pretty cool huh?

If you can't figure out where this is actually located, it is in Forest Temple.