[b]Jupiter's arm cannon is a transformed version of her prosthetic arm, which turns into the cannon and back when need be The cannon fires what is called a "Nova Beam", which was discovered from the remains of a tattered and damaged suit belonging to someone long dead The Nova beam is, after extensive research on it, is thrice as powerful as plasma, and is able to pass through most objects, ranging from weak materials to basic metals The Nova beam is able to burn almost anything known in existance, and is akin to a lazer, due to its whitish green appearance when fired, and the way it acts when it hits objects[/b]