Roll (Version Vongola Box) is Hibari's exclusive Box Weapon. It was created by remodeling a CloudHedgehog. It is imbued with the Vongola's latest technology. Roll's whole body is enveloped in a firm armor with long needles and possesses excellent propagation abilities. Through Cambio Forma, it changes into the handcuffs said to have been used by the First Cloud Guardian. Its name is not "Barinezumi", but "Roll".
Propagation: Like the normal Cloud Hedgehog, it is capable of propagating at an incredible rate. However, while the normal Cloud Hedgehog's propagation usually manifested itself as an expansion of size, in Roll's case this rather happens through self multiplication more often than not. This was shown to be an extremely effective technique, as it was able to hold the Funeral Wreaths at bay by itself while Tsuna and his Family escaped with Yuni after the Choice Battle.
Roll's Armor: The armor around Roll can also be detached and used for various offensive and defensive maneuvers, such as swiftly
creating a shield near Hibari.
Cambio Forma: Alaude's Handcuffs: After Cambio Forma, Hibari's Vongola Box takes the form of a pair of handcuffs with spikes on one end. Due the Cloud-attribute's propagation ability, these handcuffs can multiply in numbers by absorbing either Hibari's or the opponent's Flames.