On the first keyframe, I've used the Transform tool to select my snowball and scale it down vertically until it's squashed. Now the great thing is--that's all I need to do. I don't need to make any more tweens, or any further edits to it; because it's not a regular symbol, it's going to tween its shape on its own as the timeline progresses to the next keyframe, where it's still perfectly circular.


