DuckTales: The Quest for Gold

. When the game is booted up, you must use a key script (located in the game manual) to translate symbols on the screen. If you fail, you are identified to the game as a Beagle Boy invader, and it will send the user back to the DOS prompt to try again or shutdown the pc on Amiga version, and there is no way to play the game without deciphering the code. In at least the Amiga version of the game, a flying saucer can rarely be seen during the flight sequence. The condition which triggers the event is not known. - A version of this game was advertised for the ZX Spectrum, but was later canceled. - Although marketing materials for an Apple II port exist, there is no evidence that this version was ever published or sold.