The Universal Pictures, DreamWorks and Imagine Entertainment logos are animated in Dr. Seuss's artwork. Furthermore, the Universal world morphs into the star ball, the Cat is fishing in the moon of the DreamWorks logo, and the Fish can be seen darting into the water in the Imagine logo.
When the Cat and Things are walking down the street at the end of the movie, the credits scroll while the camera pans up to the evening sky, and when it turns into nighttime, the pink clouds, crescent moon, and stars are animated in the style of Seuss's artwork. Twenty seconds of the credits are like this, then the rest of the end credits scroll against a regular black background.