Where do you find mimi after you beat super paper Mario?

Ah yes..the brat...use peach. her umbrella will block off the rubees ^_^ and fire bursts help too. But if it's the first battle, find merlee first. Merlee will say a cheer that will make mimi uninvincable. still peach is the best option. Use the umbrella to block the rubees and jump on top of her until she looses each leg. If it's the second battle, use the fire bursts and ice storms. If this battle is too easy for you and you wish to have a little fun, use Thoreu and pick up her rubees to throw back at her.