Bidoof

Bidoof, the Plump Mouse Pokémon, holds the Pokédex number #399 and is a Normal-type Pokémon introduced in Generation IV with the release of Pokémon Diamond and Pearl. It is commonly found in the Sinnoh region, frequently appearing early in the game as a wild Pokémon in areas like Route 201 and Lake Verity. Known for its buck-toothed, beaver-like appearance, Bidoof is often underestimated due to its seemingly simple design and ubiquitous presence as a common species. However, its charm lies in its unassuming nature and surprising utility when evolved into Bibarel, which gains the Water typing.

In terms of its role in the mainline games, Bidoof is usually one of the first Pokémon players encounter, making it a staple for those embarking on their Sinnoh journey. While not a starter Pokémon, its prevalence in the early game makes it an early companion for many players. Bidoof's evolution, Bibarel, is particularly valued for its ability to learn a wide array of HM moves, making it an excellent "HM Slave" for traversing the game world.

Despite its ordinary typing and widespread availability, Bidoof has endured across generations due to its endearing design and the nostalgic connection players have from repeated encounters. This has been further cemented by its meme status within the Pokémon community, often humorously portrayed as a deity-like figure in various fan-created content.

Bidoof's presence extends beyond its initial debut, appearing in subsequent games and media, which has helped maintain its popularity. Its appearances in titles like Pokémon X and Y, Pokémon Sword and Shield, and even Pokémon Legends: Arceus continue to remind fans of its humble beginnings as one of Sinnoh's most lovable Pokémon.