On Mythology Island, Zeus tricks you into recovering 5 sacred items that will let him control all of the island. You will need to get Hercules to help you reach Hades and Poseidon, whose powers you can use to defeat Zeus.
(see related question)
On Mythology Island in Poptropica, the final thing you do is defeat Zeus in a battle to stop him from taking over the island. Once you defeat Zeus, you will have completed the main quest of the island and can claim your medallion.
to get Zeus's trident on poptropica you have to buy it for 250 credits
Click the torches to light the arena and summon Zeus. You will have to battle him to stop him from using the 5 sacred objects to rule Poptropica. (see related question)
woman
you cant
a
you fight Zeus to become a god
it won't if you defeat him!
Mount Olympus.
NO!
You collect sacred items and defeat Zeus to save Poptropica.
When your done fighting him, hes there still, and click the clothes shirt in the right side corner of your poptropica screen, then click on Zeus and you get it :D