This item is a Pokémon Doll that you can place on a mat or desk in your room in New Bark Town in Gold, Silver & Crystal, or on the floor of your base in the Sinnoh Underground in Diamond, Pearl & Platinum
A cute BULBASAUR Doll.
Episode 963 The Promise Between Ash and Pikachu
Episode 964 It is Time for Litten to Set Off!!