Pokémon Underground

Unlicensed Pikachu plush toy from Honduras.

Top: Pokédex entries for the "PokéGods" Doomsay and Doomsday, created by the website Pokémon Factory in 1999.

Bottom: A later depiction of Doomsday, created by an unknown artist at a later time.

Doomsay and Doomsday appeared on lists of Pokémon set to appear in the upcoming Gold and Silver versions on English language coverage sites as early as November 1998, predating the true height of the PokéGod phenomenon on the early internet. The names quickly became infamous, with speculation surrounding them lasting until the release of Gold and Silver, after which some became convinced they were fabricated English names given to prerelease artwork of Houndour and Houndoom.

Gameplay of the Versus Mode of Pocket Monsters Pikachu Stadium, an unlicensed Game Boy title developed by Good Life, a studio believed to have been based in Taiwan.

The game is currently undumped due to strong copy protection, a feature common to unlicensed Game Boy titles of the era.