Conker's Pocket Tales was a game released by Rareware in 1999. It was a simple overhead action game, starring Rare mascot Conker the Squirrel in a dual-format cartridge that served as both an original Game Boy game and a Game Boy Color game. While the two versions both co-existed on the same cartridge, only one could be played on the appropriate system. There were actually several differences in the layouts of worlds, so it was really two games in one.
The game was lighthearted in nature, and designed to appeal to younger gamers (or older gamers young at heart). It was intended to serve as a precursor to the planned N64 title Conker's Quest, however that game ultimately ended up being massively re-tooled into Conker's Bad Fur Day, an "adult" title featuring swearing and scatalogical humor. Conker's Pocket Tales can thus be seen as somewhat of an anachronism in the Conker franchise, as it represents an intended direction for the series which has since been abandoned.