Which console was Pokémon Gold and Silver originally developed for?

Pokémon Gold and Silver were originally developed for the Game Boy Color.

Game Freak created the second-generation role-playing games for Nintendo's color handheld system, and Nintendo published them. They were released in Japan in 1999, followed by releases in North America and other regions in 2000 and 2001.

The Game Boy Color hardware allowed the games to present a more colorful world while preserving compatibility with the series' handheld roots. Gold and Silver also used an internal clock, so the game world could reflect different times of day and support events tied to a daily schedule.

A common mix-up is connecting the games with the Nintendo DS because their remakes, Pokémon HeartGold and SoulSilver, were released for that system in 2009. The original Gold and Silver titles belong to the Game Boy Color era, while the remakes added updated graphics and features for Nintendo DS players.