In Event 39: Jigglypuff Live, the screen in the background will sometimes focus on the player's Jigglypuff. If the player uses "Sing" at this very moment, the other 3 Jigglypuffs will fall asleep, and for longer than usual. This Easter egg only appears in Event 39, which may be appropriately placed in sync with Jigglypuff's National Pokedex number, 39.
Contributed by game4brains
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