How do you unlock Jiglypuff in SSBB?

Here are all the ways

you can do 350 brawls

After beating Subspace Emmisary (adventure mode) beat every event 1-21

Or after beating adventure mode go to the place in it called "The Swamp" after beating that diddy kong thing you go up and you will see a door go in it and battle it.

Do any of these and jiggly puff will be your's