Zeus Quest - The Rebirth of Earth

After you get the Bonus Coin, use your lightning spear to clear the rocks at the top of the trench, then head to Mykanos, and use your scythe on the ivy on the pillars on the house to get it into your inventory.

Go to Island, and try to use the Ivy on the guard tower building. Next, use the ambrosia in your invenory with the ivy, then use it on the guard tower building again. Use the scythe on the building to put it up onto the ivy, then use it to get to the small island. Click on the tree to get a pineapple, then on the wood to pick that up. Return to the mainland using the scythe again and exit.

Now, go to Windmill and give the wood to the engineer and he will repair the windmill. Click on the pipe and choose to kick it, which will do nothing. Use your ambrosia on yourself and choose to kick it again and you will fix it.

Return to Lions and speak to the gardener; he will fill the trench will water and the flowers will grow. Pick each of the flowers, then examine the middle lion's head with a couple of times. Then interact with it, turning it twice to expose the third piece of the time machine, unlocking this achievement.