Die fantastische Welt von Gumball

3. Staffel, Folge 20: While performing a school play, Gumball is so nervous about kissing Penny that he accidentally headbutts her and cracks open her shell. They discover that under Penny's shell is an emotional shape-shifting inner self. Penny's father is determined for Penny to keep it hidden but Gumball encourages her to show the world who, or what, she really is.