You are puzzled by what the Leprechaun said. Then he explains. "The Leprechaun Kingdom is in danger of being wiped out by the Goblins. We need your help! If you will help us, then we will give you anything you desire."
"Well, what do you want me to do?"
"You must first defeat Cerberus, the guardian of the Goblins' Chamber, then you will defeat all the goblins and finally the Goblin King. You can do it. You are the only one who can help us."