Barb ​is a character in Mario Tennis: Power Tour who hails from Empire. In the Island Open, Clay or Ace faces her in the first round. Unlike Dweezil and Mynx, she is unseeded and not considered as much of a threat as her fellow Empire players and seems to be fairly naive. She claims to have underestimated her opponent because they were a rookie. She has the High-Power Shot and her doubles partner is Oscar. Oscar is never faced in the singles or doubles tournament. If Clay/Ace win the doubles tournament before the singles, she asks them to go easy on her.

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