The Song of Jigglypuff is the first episode with Jigglypuff in it. When Misty, Ash and Brock finally get Jigglypuff to sing and the fall asleep Jigglypuff goes into someone's bag and finds a magic marker. How he/she knew it was there is another story. Anyway, in the next episode we see that the same Jigglypuff has followed them and still has the marker. In every other episode Jigglypuff has a marker. Are we being led to believe that the same Jigglypuff is everywhere Ash and company go?