Stuck as Gauko is the 4th episode of Dino Girl Gauko.
Naoko gets into an argument with her Naoko's Mother about food for a special occasion. This leads to another food-related incident where she transforms into Gauko and cannot transform back. She tries a couple of things that don't work, like letting her anger out on the town, then screams and runs away, so she tries to make a surreptitious return home. Back at home, she hastily returns to her room and hides in the closet, wondering about if she was stuck as Gauko forever. Afterward, her mother looks for Naoko and after singing a song she reveals herself and transforms back.