Pac-Man is physically controlled by Betrayus when he swallows a special micro-chip, and Pac's friends must help him infiltrate the Netherworld spy-style to retrieve the remote controller.

In order to learn the secret location of the Repository, Betrayus possesses his mother's body while Dr. Buttocks hypnotizes the President, who reverts back to a five year old that drives his brother and mother batty during a wild and wacky race against Pac and pals to see who gets to the repository first.

Pac-Man is "put out to pasture" when a new ghost-catching gizmo hits the market. But the Spooka-Bazooka is actually a fiendish Betrayus plot to conquer PacWorld.

When Dr. Buttocks coats some ancient armor with his newly invented "Buttanium," he creates a ghost army that not even Pac Man can chew through while Sir C feels he's lost his edge and cannot create a counter weapon.

Utt-lergets roped into infiltrating Pac-Man's dorm, disguised as an exchange student so that he can find psychological weaknesses for Betrayus to exploit.