DuckTales: Day of the Only Child!

An alien crystal falls into Doofus' hands. As a result, Doofus finds himself with superpowers and more of a hero than his hero, Luanchpad! In a series of adventurous mishaps, Doofus learns to live with his own shortcomings and finds he's better liked for being himself. He gives up the super powers, not realizing the aliens who lost the crystal are hot on his tail!