nope,I think I played the shit out of that game,but I still have a lot of missed stuff. 
In my game, go left and talk to the skull kid by clicking on him or the platform. Read what Navi says, and click the ocarina. That's one of the two easter eggs. The other is if you go left from the Skull Kid, go across the way to the other side of the bridge and click the statue.
whooooa! Beautiful! Thanx man! I never knew that!