 In the episode "Penny Hearts Joey" she befriends a robotic kangaroo named Joey from a Chuck E. Cheese's-parodying pizza restaurant/arcade called "Jumpin' Joey's" where Joey is the restaurant's mascot and spokesperson.Penny's low intelligence causes her to believe that Joey is alive, and it is revealed at the end of the episode that he does have some feelings and is aware of the activities Penny is doing with him.Penny can communicate with sea lions and has asthma, and she also seems to have a love for chickens, and this is shown through her being seen sleeping with a toy chicken at night and her father's nickname for her, which is "Chicken."