Nina's World Season 1 Episode 13 Nina Rides a Bike / Nina Takes the Cake Episode Title: Nina Rides a Bike / Nina Takes the Cake Episode Description: Nina Rides a Bike:When Nina doesn't want to ride her bike after an accident, Abuelita Yolie, Carlos and Chelsea build her a 'bike school' to get her back on the bike. Nina Takes the Cake:In "Nina Wants to Grow," Nina wants to grow taller...right now! But eventually she realizes there are good things about being small and that she'll grow when the time is right. In "Nina Takes the Stage," when Nina discovers a Chinese shadow puppet and a variety of costumes in the Everything Store, she and her friends decide to put on a play. But Nina struggles with how to pick the right roles for each friend.