Toad Brigade to Mushroom Mesa!
From the Super Mario Wiki, the Mario encyclopedia
The level takes place in Mushroom Mesa again, except this time with the Toad Brigade from Super Mario Galaxy. Captain Toad must gather the Blue, Yellow, and Green Toads and take them to the four-character Multi-Vator at the end of the level to reach the Power Star on a high cloud above. (A hidden Gold Mushroom can be found behind the player's starting point.)
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