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If you're talking about what I assume you are, the 'star' is actually a Luma, a creature from Super Mario Galaxy. They only appear alongside you if you race as Rosalina, because she is their adopted mother. ("Mama!") They don't really affect gameplay, only making sounds if you do tricks or go over speed boosts. You can get Rosalina by creating a Super Mario Galaxy save file on your Wii, and then doing 50 races. There's another way to do it, but it involves winning an absurd amount of races without Super Mario Galaxy, so I'd recommend getting the game instead. The Gift (talk) 22:28, November 24, 2012 (UTC)

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