Windy is easily excitable and has a tendency to bite other characters when agitated. Her verbal tic is "~nanoda". She loves playing pranks (specifically on Trainers).
Windy's real-life horse counterpart has a nasty habit of biting other horses when racing neck-to-neck near the finish line. This has lost him several races with the horse being "too busy" trying to line up a bite instead of overtaking his opponent. This trait endears him to his fans, oddly.
