Jigglypuff (anime)/Games/Side series

Pokémon Snap
A Jigglypuff&mdash;which may be this same Jigglypuff&mdash;appears in the Cave area of Pokémon Snap. It and two other Jigglypuff are being harassed by a trio of. They leave after being saved by the player, but return at the end of the course to for the camera. The center-most one uses a marker as a microphone, and inflates itself in anger in the same manner if the Poké Flute is played over its singing.

Pokémon Zany Cards
In Special Seven mode, Jigglypuff appears as card #3. When Jigglypuff is used, it will sing the opponent to sleep (becoming enraged in the process), forcing them to miss a turn.