Hidden sequences
Select "Special Features" to find a trivia game. Play the game and answer all ten questions correctly to view watch a short episode with Colonel Bleep titled "The Treacherous Pirate", which is about Colonel Bleep's spaceship/time machine. This can also be viewed by advancing to Chapter 6-1. Advance to Chapter 7-1 to see some old cartoons.
Vintage commercials
On the trivia game, answer question five correctly. At the congratulations screen, instead of selecting "Next", press Up to highlight the Mammoth Car in the top right part of the screen. Press Enter to see three vintage 1950s animated commercials.