In almost every video game I can think of, all the level bosses are already waiting for the main character to arrive. If they aren't sitting looking at the door, then they begin a long, dull, speech right before you can bring out your sword to slit their throat. What, do Bowser and his crones have a fleet of SR-71's flying around or something? Does Ganondorf install hidden cameras or mics or something in his castle? Do we really have to get Sam Fisher to do everything? No. I have a theory of my own.
It's quite simple really. Each boss can actually hear the level theme approaching.
It's quite simple really. Each boss can actually hear the level theme approaching.