He'll only help when you have all your items.
well, first you have to have the magic mirror that lets you travel around a lot easier.(you get it from Aphroditte) then when you get the mirror you go to Hercules and tell him that you have a magic mirror from Aphroditte. then he says ok and he follows you.
You have to beat half the game... just look it up on youtube. then you convince Hercules to come with you, use the mirror and you go right to the bolder, he will get it on his own.
Hercules is Zeus's son and Athena's brother Hercules is who helps you in mythology island
Hercules! You have to have him help you move the rock. :)
To convince Hercules to leave on Mythology Island, you need to have the golden apple from Hades's tree. Offer it to Hercules as a gift and he will leave in search of more apples like it.
You have to get Hercules to open it.
You get Hercules to smash it.
Click on it when it pops up.
you need to get all of the items in the list and then Zeus will steal the items then you go ask Hercules
At the almost end of the island Zeus will steel all of the sacred items then you tell Hercules that and he will help you.
You end up not needing it.
the under world god