The Halberd's size is not stated and varies from game to game. In Kirby: Right Back at Ya!, it is just about larger than King Dedede's Castle. The Halberd is capable of atmospheric and space flight, and is able to take off from underwater. In Kirby: Right Back at Ya!, it is "made to move at hyper speeds", and does so by using wormholes, managing to cover 900 light years in several minutes. The ship's power comes from the Reactor (known as the Engine Room in Kirby: Right Back at Ya!), and judging by the dialogue at the beginning of Revenge of Meta Knight, the Halberd is dependent on solar energy to some degree. In Kirby Super Star and its remake, some components of the Halberd are shown to be powered by Wheelies.