Courage the Cowardly Dog: Creep TV has secret codes and maps that went undiscovered until 20 years after its release due to a glitch making them inaccessible. The codes include the "daScore" code, which shows a counter of how many ghosts you've zapped, and the "mirage" code, which expands the game map infinitely and allows access to the secret maps. On one of these maps, you can acquire a pair of glasses as an unused item, and another map containing an oasis in the Middle of Nowhere that also has a sign simply reading Eustace's catchphrase, "STUPID DOG!". However, if you use the glasses to read the sign, it will instead say "Wee...amazing! You found it! GOOD DOG!"