When you are at the temple of the Oracle for the first time you can do this egg.
.1- You must click R2 at the left side of the temple where a chest is, near a save game point. (you can see what looks like little bugs flying around) .2- You must click R2 on top of the mound behind the Gravedigger's hole. .3- Click R2 in between the two pillars with fire on them before you see the words come out. (In between the two lanterns at the end of the bridge). Link below of said easter egg.