Tokyo Grows / That Smarts / Brainstem!

S1, E3: In "Tokyo Grows," during the 1950s, The Brain creates monsters to scare Tokyo and then rescue it. Later, in "That Smarts," The Brain decides that the key to his success is to make Pinky as smart as he is. Finally, in "Brainstem!" Pinky and The Brain sing about the parts of the brain.