When the boy wear the dinosaur costume, he felt powerful that he was not a person but a dinosaur. So he did many thing that he won’t do in his daily life. But it is only what he imagine. He do not have the real power. So this power is only the kid find a reason to release and do something that makes himself feel powerful. For example, when his parents told him not to eat sugar, and then he did it. He did not really want to eat it, only because he thought parents is the most powerful people in the world, and when he resist them, he will be more powerful.