Master's Ladder Lock

Enter Dodongo's Cavern and go to the room on the second floor which is at the bottom left of the map.Inside are three Dodongos, kill them.As soon as you've killed the third one and before it explodes climb onto the ladder on the platform in the middle of the room.Once the third one explodes a cinema showing the door being unbarred will take place, during this cinema hold the analog stick either up or down.Once the cinema finishes Link will be stuck in the middle of the ladder and the game will be "locked".