!This is a listing of the Box Animals of Manga/KatekyoHitmanReborn. YMMV items and subjectives go in the [[YMMV/KatekyoHitmanReborn YMMV page]] for the series. For the main character sheet see [[Characters/KatekyoHitmanReborn here]].

http://static.tvtropes.org/pmwiki/pub/images/Natsu_3315.PNG
::'''Natsu'''

A Sky Lion Cub and the personal Box Animal of Tsuna. Unlike other Box Animals, Natsu acts like his master, both in and outside of battle. In battle, Natsu can uses powerful [[MakeMeWannaShout roars]] to petrify the opponent and can combine with Tsuna through the use of Cambio Forma, and turn into various weapons for him.


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* BadassAdorable
* CoolPet
* CuteKitten
* [[FlamingHair Flaming Mane and Tail]]
* FusionDance: Through Cambio Forma, Natsu can fuse with Tsuna to make several weapons.
** BadassCape: Mantello di Vongola Primo.
** [[spoiler:HandCannon: Version X.]]
** PowerFist: Mitena di Vongola Primo.
* MakeMeWannaShout: Ruggito di Cieli, which also has the added bonus of [[TakenForGranite turning the opponent to stone.]]
* NiceHat: [[spoiler:Upgrades to CoolHelmet upon becoming Version X.]]
* PantheraAwesome
* PlayingWithFire
* RidiculouslyCuteCritter
* SpellMyNameWithAnS: His name is usually romanized as Natsu or Nuts.
* WeaponizedAnimal

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::'''Uri'''

A Storm Leopard Cub and the personal Box Animal of Gokudera. Uri has a mischevious personality and constantly torments Gokudera by scratching him. Uri is useless in an actual battle, but if given enough Sun Flames, Uri can turn into a full-sized leopard, allowing it to fight with Gokudera. In addition, Uri can perform Cambio Forma, turning itself into a bow and [[spoiler:an entire arsenal of dynamite in Version X.]]


--> Voiced by: Creator/RieTanaka
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* BadassAdorable
* CatsAreMean: Poor Gokudera and Natsu.
* CoolPet
* [[spoiler:CoolShades: Version X.]]
* CuteKitten
* FusionDance: Through Cambio Forma, Uri can fuse with Gokudera to make several weapons.
** [[spoiler:ActionBomb: Can turn itself into this in Version X. A side effect is that Uri is shrunken for some time after exploding.]]
** ArrowsOnFire: G's Archery.
** [[spoiler:MadBomber: Version X, where it brings back Gokudera's dynamite.]]
* PantheraAwesome
* RedEyesTakeWarning
* RidiculouslyCuteCritter
* SleepModeSize
* WeaponizedAnimal: [[spoiler:More so in Version X, where it becomes a bomb.]]

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::'''Kojirou and Jirou'''

A Rain Swallow and Rain Akita Inu and the personal Box Animals of Yamamoto. In battle, Kojirou can cover the field in Rain Flames, giving Yamamoto an advantage. Jirou, however, simply carries three extra swords for Yamamoto. In addition, Kojirou can perform Cambio Forma, turning itself into a longsword. [[spoiler:Jirou later gains the ability to do so as well in Version X, and they both become swords for Yamamoto.]]


--> Voiced by: N/A
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* BadassAdorable
* [[CoolPet Cool Pets]]
* FusionDance: Through Cambio Forma, Kojirou can fuse with Yamamoto to make a weapon for him. Jirou cannot, [[spoiler:but later gains the ability to do so.]]
** CoolSword: Kojirou turns into a longsword. [[spoiler:Both later turn into swords in Version X.]]
** SwordsAkimbo: While Jirou can't Cambio Forma, it can provide three bladeless shortswords for Yamamoto to allow him to fly by Dying Will Flame propulsion.
* [[BigBadassBirdOfPrey Little Badass Bird of Prey]]: Kojirou.
* PreciousPuppy: Jirou.
* RidiculouslyCuteCritter: Both.
* WeaponizedAnimal

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::'''Gyuudon'''

A Lightning Bull and the personal Box Animal of Lambo. In battle, Gyuudon is fast a powerful, and can mow down an opponent easily. In addition, Gyuudon can perform Cambio Forma, turning itself into a shield that can both protect Lambo and release a powerful attack. [[spoiler:In Version X, Gyuudon turns into a powerful armor that can control metal through magnetism.]]


--> Voiced by: N/A
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* CoolPet
* FusionDance: Through Cambio Forma, Gyuudon can fuse with Lambo to make various weapons for him.
** [[spoiler:ExtraOreDinary: Version X.]]
** LuckilyMyShieldWillProtectMe: Lampo's Shield.
* ALoadOfBull
* ShockAndAwe
* WeaponizedAnimal

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::'''Kangaryuu'''

A Sun Kangaroo and the personal Box Animal of Ryohei. In battle, Kangaryuu can fight alongside Ryohei since she can use boxing. After upgrading to Version Vongola Box, she gains cannons on her back that allow her to fire Sun Flames. In addition, she can perform Cambio Forma, combining with Ryohei to give him boxing gear.


--> Voiced by: N/A
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* BackpackCannon: Version Vongola Box only.
* BoxingKangaroo
* CoolPet
* GoodScarsEvilScars: Gained from training with future Ryohei.
* FusionDance: Through Cambio Forma, Kangaryuu can combine with Ryohei, turning into armor for him.
** ConvenientColourChange: When his three minutes are up, Ryohei's outfit turns from white to black.
** PowerLimiter: Knuckle's Maximum Break has a three-minute limit to prevent Ryohei being harmed from the power boost. [[spoiler:Version X has no limit.]]
* PunnyName: Kangaryuu is an obvious pun on kangaroo; in addition, it roughly translates into "one's own way".
* RedBoxingGloves: Version Vongola Box onwards, albeit blue. [[spoiler:Version X plays it straight.]]
* SamusIsAGirl: It was revealed that she was female after Uri crawled into her pouch.
* WeaponizedAnimal

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::'''Roll'''

A Cloud Hedgehog and the personal Box Animal of Hibari. In battle, Roll can turn into a sphere of spikes called the Needle Sphere Form to attack or trap the opponent. In addition, it can perform Cambio Forma, combining with Hibari to create a new weapon for him.


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* [[DrunkOnMilk Drunk On Cloud Flames]]: The very first time Roll was summoned by the non-future Hibari, it could not handle the level of flames Hibari was exerting and became drunk on them.
* CoolPet
* FusionDance: Through Cambio Forma, Roll can combine with Hibari, turning into various weapons for him.
** [[spoiler:DualTonfas[=/=]WhipItGood: Version X.]]
** ImprobableWeaponUser: Alaude's Handcuffs.
* PurpleEyes
* RidiculouslyCuteCritter: And how!
* SpikeBallsOfDoom: Can do this with its Needle Sphere Form.
* TheSpiny: Hibari found this out the hard way.
* WeaponizedAnimal

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::'''Mukurou'''

A Mist Owl and the personal Box Animal of Chrome and Mukuro. Originally, it was a Rain Owl owned by Glo Xinia until Chrome managed to hit it with her weapon, allowing Mukuro to possess it and change its attribute. Its battle skills aren't that well know, but it can perform Cambio Forma, combining with Chrome or Mukuro to create a new weapon for them.


--> Voiced by: N/A
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* CoolPet
* FusionDance: Through Cambio Forma, Mukurou can combine with Chrome or Mukuro, turning into various weapons for them.
** HighClassGlass[=/=]EnemyScan: Daemon Spade's Devil Lens.
** [[spoiler:SimpleStaff: Version X.]]
* TheOwlKnowingOne: [[AllThereInTheManual Supplementary materials]] show that Mukurou has very high levels of intelligence.
* SharedUnusualTrait: Whenever possessed by Mukuro it's eyes turn red and blue, the same colors as Mukuro.
* TalkingAnimal: Whenever possessed by Mukuro.
* WeaponizedAnimal

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::'''Bester'''

A White Sky Lion and the personal Box Animal of Xanxus. Actually Bester is [[spoiler: not a Lion but a Liger, a combination of the Sky Lion and the Storm Tiger.]] Bester is immensely powerful but like the other Sky Lions, most of his abilities remain unknown. He can perform Cambio Forma and merge with Xanxus’ X-Guns.


--> Voiced by: N/A
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* CoolPet
* FusionDance: Bester can fuse with Xanxus’ guns through Cambio Forma.
** CoolGuns: Animal Emperor Guns. And they even shot bullets in the shape of [[spoiler: a Liger]]!
* LuckilyMyShieldWillProtectMe: After Talbot’s upgrade Bester gains Platinum Armor.
* MakeMeWannaShout: Ruggito di Cieli. [[spoiler: Thanks to the Storm’s Disintegration element it can also destroy the petrified opponent.]]
* PantheraAwesome
* PlayingWithFire
* RedEyesTakeWarning: Just like his master.
* WeaponizedAnimal