Pokemon Factory Adventure is a fan-made hack of Pokemon Red for Game Boy Color. Set several months after Red's victory as the Kanto Champion, the game involves Red being summoned by Blue to investigate a mysterious mist that has transformed local Pokémon. Players must uncover the source of these mutations while navigating a region under military lockdown, amid remixed elements inspired by fan-created Pokémon from the late 1990s.
A hack based on Roaming Red by TShadowKnight
The year is 199X. Several months after becoming champion of the Kanto Region, Red is called back by Blue to help on a secret mystery-solving mission! In Red's absence the Kanto region has been overtaken by a strange mist that mutates Pokemon into shocking new forms, and the military has instated a lockdown! Are you a bad enough detective to discover the origin of the mutations and save Kanto?
This hack is based on a fansite from the late 90s called The Pokemon Factory". On it, fans would email in their ideas for new Pokemon to the site's artists who would make sprites and Pokedex entries of them to be displayed. These Pokedex mockups have made the rounds on the internet in the years since, with some even gaining notoriety as "Pokegods".