Tokyo Grows/That Smarts/Brainstem

In the first segment, Brain uses an enlarging ray to make himself and Pinky bigger. He dresses Pinky as Gollyzilla and has him terrorize the city with the plan to come in and save the city, however, he ends up fighting the Real Gollyzilla. In the second segment, Brain makes Pinky Smarter so he won't get in the way so much. In the final segment Brain sings a song to the tune of "Camptown Races" that goes over the different parts of the Brain. (imdb)