as said above, you could use a png sequence, but obviously may be a bit processor heavy, otherwise I beleive if you have a pro membership you cna link to a youtube video (html link). In 'Angry Birds' they have the button like that on their main menu, good video too.
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You could simulate it with a series of images.
You simply click the orange publish arrow in GameSalad and you receive an the final app file back.