The Legend of Zelda: Ocarina of Time 3D Easter eggs
First get the ice arrows from the Gerudo Traning Grounds. When you fight Bongo Bongo shoot an ice arrow at one of his hands and it will freeze. His other hand will start punching his frozen hand in an attempt to break the ice. You can then hit his eye while this is all going on to make him fall. Now you can start hacking away.