At the time, the final game was estimated to be about 80% complete and was set to be released for the original Game Boy-the Game Boy Color would not be announced until late March of the following year. The Pokémon Gold and Silver Spaceworld '97 demo is an early build of the games Pokémon Gold and Silver that was shown at Nintendo Space World '97 from November 21 to 23, 1997. Game Boy (enhanced for the Super Game Boy)