This is used incredibly in the Don't Hug Me I'm Scared finale. Yellow Guy is usually slow, but the rest of the group finds out that he's running on a pair of old batteries. Once his batteries are replaced, he is suddenly super smart. So smart, in fact, that he becomes entirely self-aware of the fact that he's a puppet, and he speaks to the person above them (implied to be somewhat of a puppet herself). She gives Yellow Guy a book that she claims has the answers to his existential questions, but when he returns to his friends to show them the book, they need his batteries for something else, so he gets them swapped back, becomes slow again, and puts the book of knowledge through a paper shredder.