Jigglypuff's family is apparently rich, since she and her sister Wigglytuff live in a mansion with maids and a butler Squirtle.
Jigglypuff is very spoiled. She's used to being treated like a little princess and always getting her own way. Whenever she gets mad, she puffs up to an enormous size. She also puffs up to float, and once when she fell from a cliff. She also loves to cook, but everything she makes tastes absolutely vile. In fact, some of the food she makes has almost killed people, or made them explode or faint. Only Snorlax can handle her food.
She likes to follow butterflies.