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Mushroom Valley is the first location in Spore Hero.
Your creature finds itself in the Mushroom Valley, where it learns how to use a Nest and other basic living essentials from Meejee. It also learns how to fight by another of Meejee's Tribe, Espee. After talking to them, you meet up with the Big Chief of Meejee's Tribe. Before you get a chance to talk him, Zarkhator appears and attempts to crush you with a red meteor. The red meteor fails to hit your Sporeling, but it still corrupts the Big Chief.
Your creature destroys the meteor, and is rewarded with an ancient idol piece. You are told to take the ancent idol parts to the Sage in the Ancient Grounds, but Meejee won't let you. Meejee tells you to cure the Spikees, a tribe that are friends with Meejee's Tribe, from the influence of the Red meteor. After curing them, Meejee allows you to go to the Ancient Grounds. You also have to fight the Spikees.