Title Canguro del Sereno ver. Vongola
Name Kangaryuu
Designer Unknown
Animal Kangaroo
Users Ryohei
Cambio Forma Knuckle's Maximum Break
Power B
Intelligence B
Speed A
Stamina S
Size 1.9m
Personality Helpful
  • Kankick
  • Punch
  • Nursing
Manga Debut Chapter 240

Kangaryuu is Ryohei's exclusive Box Weapon, created by remodeling a Sun-attribute Kangaroo. It is imbued with the Vongola's latest technology. After its remodeling, Kangaryuu gained boxing gloves, shoulder pads, metal rings around its chest and tail, a double-barrel cannon and a jewel with the Vongola crest in its forehead.

Powers and AbilitiesEdit

Like the original Sun Kangaroo, it also has the ability to store and shoot weapons that make use of Sun Flames from its belly pouch, such as the Sereno Gloves and the Sereno Shoes. Furthermore, not only it has the Sun's Activation from inside its belly, but the double-barrel cannons can also launch Activation bullets. By undergoing Cambio Forma and fusing with Ryohei after he had received those bullets, it brings Ryohei into an extreme battle state called "Maximum Break". It was also shown capable of flying by releasing Sun Flames from its feet.

Knuckle's Maximum Break

Knuckle's Maximum Break

  • Boxing: Kangaryuu uses boxing techniques to perform his other techniques.
  • Sun Enhancement Shot: Kangaryuu is capable of shooting pure Sun Class Flames from his double-barrel cannons.
  • Cambio Forma: Knuckle's Maximum Break: After firing a blast of Sun Flames that carries an Activation factor that boost one's physical battle state carries a terrifying power, but Ryohei can only maintain it for three minutes due to the stress that it causes to his body.
  • Taienrankuga (Flame Storm Sky Fangs): A combined attack with Uri and Alfin.


Box Weapons
Sky Box Weapons: Natsu (Version X) • Bester (Sky LionSky/Storm LigerPlatinum Armor) • Scuderia (Sky Pegasus) • White DragonBlack DragonsSky Turtle
Storm Box Weapons: Uri (Leopard ModeVersion VongolaVersion X) • MinkStorm Box of CarnageStorm ScorpionsStorm MoleStorm SerpentStorm Stag BeetleStorm BatsStorm HyenaSistema C.A.I.Flame ArrowDark ScytheSpikesDark SlicerFlying CarpetThrone
Rain Box Weapons: Jirou (Version X) • Kojirou (Version VongolaVersion X) • AloAlfinRain Box of CarnageRain OwlRain Giant SquidRain PelicanHeavy Rain ElephantVampire BatRiding CropWater
Sun Box Weapons: Kangaryuu (Version VongolaVersion X) • Sun RhinoSun Box of CarnageKuuSun SpidersSereno GlovesSun TrowelMerone Base‎‎RopeOctopus Head
Lightning Box Weapons: Gyuudon (Version X) • Colulu & Widget (Black Foxes) • LivyaElectric Wild BoarElectric HornetElectric FireflyElectro MantisLightning BirdElettro BilliardTurbine Shoulder ArmorElectro LanceLightning SquidLightning Starfish
Mist Box Weapons: Mukuro (Version VongolaVersion X) • Spectral Sea SlugsFlan's Box WeaponMist Box of CarnageMist Sea SnakesMist StarfishNuvola GauntletIllusion SwordSuit of ArmorParachute & Balloon
Cloud Box Weapons: Roll (Version VongolaVersion X) • ZamzaCloud Box of CarnageNuvola VelociraptorDemon BearCloud MothBellflowersCloud TonfaCloud WhipViolet Tornado