Ice Cream, Mosquito, Dancing in the Rain & More

S1 E301: Ice cream is thrown on the sewer. Red and Yellow battle over the melted drippings. Next, a Mosquito enters the sewer on a quiet night. Red and Yellow become victims of the mosquito's bites, but Violet appears to challenge it. Later on a rainy day, a bottle cap is accidentally caught on Yellow, and he starts to tap dance. Red, watching from a distance, looks for his own bottle cap.