* What is Heffer's last name?
* What is Heffer's mom's name?
* What is Heffer's dad's name?
* In one episode, Heffer and Filbert decide to make a video containing Rocko going downstairs completely naked in order to get a drink of milk. According to them, what time does this event occur every night?
* Heffer and Rocko once decided to paint Rocko's house. They mixed many colors of paint together to create a rather ugly combination. What name did Heffer give this color?
* What is the name of the large, pink hippo lady?
* Ed Bighead, Rocko's neighbor, works for the Conglom-O company. What is the motto of this company?
* "A sucker for the Suck-O-Matic" features Rocko purchasing the Suck-O-Matic, the world's most efficient vacuum cleaner. It only has one flaw, which is what?
* In what kind of home does Rocko's friend Filburt live?
* In "Power trip", which of these does Rocko see Filburt getting run over by in Really Really Big Man's magic chest hairs?
* In "Keeping up with the Bigheads", Heffer mixes some paint to do Rocko's house, and winds up with a combination that he calls what?
* In "To Heck and back", Heffer dies and goes to Heck. There he is punished for the deadly sin of what?
* According to Heffer, what vintage is the potato chip he removes from the Suck-O-Matic's throat in "A sucker for the Suck-O-Matic"?
* In "Commuted sentence", the subway train Rocko takes to work one day has to stop due to what?
* In "Canned", Rocko is fired from his job at SuperLot-O-Comics. What jobs does he try?
* In "Jet scream", what does the warning sign in the restroom read?
* In the episode where the gang goes camping, what does Heffer find as suitable baggage?
* In the the episode where they go camping, Heffer agrees to leave the indoor campground because he is out of what?
* In the Chameleon Cafe episode, where is Heffer's new tattoo?
* What is the name of the pizza restaurant?