Menu animations
Insert Disc 1. Highlight the "A Word From Matt Groening" option at the main menu. Press [Up] to highlight the record player. Press [Enter] and some music will play. Press [Right] from the record player to highlight a lever. Press [Enter] and an alarm will go off.
Insert Disc 2. Highlight the "Marge On The Lam" option at the main menu. Press [Up] to highlight the television. Press [Enter] to see the Ichty & Scratchy introduction. Press [Right] from the television to highlight Bart's casino sign. Press [Enter] to light up the sign.
Insert Disc 3. Highlight the "Bart Gets Famous" option at the main menu. Press [Up] to highlight the Malibu Stacy doll. Press [Enter] to hear one of her sayings.
Insert Disc 4. Highlight the "Burns' Heir" option at the main menu. Press [Up] to highlight the rock on Miss Krabapple's desk. Press [Enter] to change it. From the rock, press [Right] to highlight a plant that is shaped like Marge. Press [Enter] to make it grow.
Hidden commentary
Insert Disc 4. Enter the "Special Features" screen. Select the "Art And Animation" option. Then, highlight the "Animatic Play" icon. Press [Left] to highlight the "100th Episode". Press [Enter] to hear additional commentary for that episode.