BTW, Jigglypuff is actually surprisingly difficult to K.O., not as much as in melee, but it still will needs a lot of hits.
You see, 6 hits assumes that the sixth is a powerful move, such as a smash. Jigglypuff will not be hit by a power move unless she screws up, as Jigg's horizontal air speed, low vertical drop speed, and multiple jumps are used to keep her above and to the left or right of the hit-boxes of most characters' kill moves, thus prolonging her matches somewhat longer than most people expect.
You see, 6 hits assumes that the sixth is a powerful move, such as a smash. Jigglypuff will not be hit by a power move unless she screws up, as Jigg's horizontal air speed, low vertical drop speed, and multiple jumps are used to keep her above and to the left or right of the hit-boxes of most characters' kill moves, thus prolonging her matches somewhat longer than most people expect.