Imps are the first type of villains you encounter in Okami. They come in 5 varieties: Green Imps, Red Imps, Yellow Imps, Blue Imps and Black Imps. They are regularly encountered in Shinshu Field, Agata Forest, Tsuta Ruins, Taka Pass, the Gale Shrine, the Moon Cave and the City Checkpoint.
Imps are followers of Orochi and are seen as cheeky and monkey-like musicians. For the most common types of Imps listed below, their masks display characters of the first line of the archaic Iroha poetic sequence, albeit in katakana: i ro ha ni ho he tochi ri nu ru wo (etc.)