Jigglypuff (anime)/Anime/History/SM

After a very long absence, Jigglypuff appeared in front of Ash,, Brock, Misty, and their Pokémon at Professor Oak's Laboratory in Alola, Kanto!. ,, and , having not seen a Jigglypuff before, were excited to see it, but Ash, , Brock, and Misty remembered their previous encounters with it and thus were terrified. Jigglypuff started singing, causing all of them to fall asleep. Per usual, this made Jigglypuff upset, and it proceeded to scribble all over everyone's faces.

In the next episode, Jigglypuff was shown sleeping on top of the plane that Ash and his classmates were taking back to Alola. In Now You See Them, Now You Don't!, Nebby used with  and Ash and took them to Jigglypuff. It put Pikachu, Nebby, and Ash to sleep with its singing before leaving.

In Let Sleeping Pokémon Lie!, Jigglypuff ended up singing Team Rocket and to sleep before scribbling on their faces. Later, Jigglypuff landed in the Pokémon School, where it sang Ash, his classmates,, Samson Oak, and Samson's to sleep. When it went to scribble on Komala's face, Komala suddenly struck back. Eventually, Jigglypuff got a taste of its own medicine when it fell asleep and Komala promptly scribbled on its face. Afterwards, it appeared to have befriended Komala.

Jigglypuff made cameo appearances in The Dex Can't Help It!, Don't Ignore the Small Stufful!, and Got Meltan?.

In SM146, Jigglypuff was seen sneaking aboard the plane that took Ash back to Kanto.