From WiKirby, your independent source of Kirby knowledge.
Minny is a type of enemy in Kirby & The Amazing Mirror. They are very small enemies that resemble a tiny Waddle Dee. Minnies have a red body, a face akin to Kirby's, and peg-shaped hands and feet that it crawls on. Minnies yield the Mini ability when Kirby inhales and swallows them.
Minnies are encountered, although infrequently, in Moonlight Mansion, Mustard Mountain, Carrot Castle, and Olive Ocean. They can also appear from the gift boxes spat out by Boxy. When Kirby does encounter them, they are sometimes encased in walls, allowing Kirby to inhale them for their ability, but keeping them from reaching him in order to do harm. Minnies have no attacks, but merely run back and forth at a high speed, hurting Kirby if they happen to bump into him. Minnies are very weak and can be defeated from any attack.
Kirby cooks up several Minnys in Moonlight Mansion.