Also known as: ウィリー(星のカービィ), ウィリーバイク
A recurring character in the Kirby games. It is a sentient wheel/bike that grants Kirby the Wheel Copy Ability. It can also be ridden in some cases (most notably, Kirby Super Star and Kirby Air Ride). In the latter game, it’s referred to as the Wheelie Bike, and acts as the “Jack of All Stats” among it and its two variants, the Wheelie Scooter and the Rex Wheelie.
For more info, see the wiki page.