How do you get Cream the chao to change form in Sonic Advance 3?

To change Cream the Chao's form in Sonic Advance 3, you need to collect the following items:

* Green Fruit: This item will change Cream into her normal form.

* Red Fruit: This item will change Cream into her super form.

* Blue Fruit: This item will change Cream into her fly form.

Once you have collected the desired item, simply press and hold the action button while Cream is on the ground. She will then change into her new form.