History Characters / KamenRiderBuildMovieExclusiveCharacters

* ThereIsAnother: ''Be the One'' reveals to us Evolto had three other Blood Tribe members helping him. Then in ''New World'' we learn about Killbus.
* WalkingSpoiler: They are related to what Evolto actually is and also indirectly caused the events of the series.

* BeyondTheImpossible: Killbus is said to be stronger than Evolt without any use of the Evol Driver.

* SurprisinglyGoodEnglish: Some of its members can speak fluent English. Justified, because they are WesternTerrorists.
-->'''Down Fall member:''' ''(to Kazumi and the Three Crows)'' [[ThisCannotBe No way!]] How can you transform!? ''[...]'' How did this happen!?

* DarkActionGirl: The only known female member of the Blood Tribe or at least the only one using a female host.

* TheSmurfettePrinciple: She is the sole female of ''Be The One'''s main villains, and the only female member of the Blood Tribe overall.

* LargeHam: Just like Evolt, he loves attention.

* SayMyName: '''Banjo''' '''''Ryuga!'''''

* SuspiciouslySimilarSubstitute: His personality is Evolt's, but with his LargeHam and OmnicidalManiac tendencies ramped up, and is so bad that Evolt works with Team Build for his own sake.

* VillainousLineage: Both he and his brother turned out as sadists with a love of destruction. Makes you wonder what whatever spawned them is like.

* TheSmurfettePrinciple: She is the sole female of ''Be The One'''s main villains.

* ShesGotLegs: The camera takes time showing off the actress's legs.

* EvilIsHammy: Killbus outdoes every other villain in the series in this regard. Nearly every word out of his mouth is delivered hammed UpToEleven.

* SuspiciouslySimilarSubstitute: His personality is Evolt's, but with his LargeHam and OmnicidalManiac tendencies ramped UpToEleven, and is so bad that Evolt works with Team Build for his own sake.

* KickTheDog: When the heroes confront the World of Ex-Aid version of Mogami in his lair, he draws special attention to the fact that one of the Greeed clones sics on them is a copy of Ankh, and has it fight Eiji.

[[center: [- [[Characters/KamenRiderBuild Main Character Index]] | [[Characters/KamenRiderBuildProtagonists Protagonists]] ([[Characters/KamenRiderBuildSentoKiryu Sento Kiryu/Kamen Rider Build]]) | [[Characters/KamenRiderBuildFaust Faust]] | [[Characters/KamenRiderBuildToutoGovernment Touto Government]] | [[Characters/KamenRiderBuildHokuto Hokuto Government]] | [[Characters/KamenRiderBuildSeito Seito Government]] | [[Characters/KamenRiderBuildNambaHeavyIndustries Namba Heavy Industries]] | '''Movie-Exclusive Characters''']]-]

[[caption-width-right:210:''Funky! Remote control gear!'']]

[[caption-width-right:210:''Funky! Engine running gear!'']]

* ImmortalitySeeker: The fusion into Bikaiser is intended to make the two Mogamis into an immortal being.

[[caption-width-right:250:''Are you ready? Spider! Spider! Killbuspider!'']]

[[center: [- [[Characters/KamenRiderBuild Main Character Index]] | [[Characters/KamenRiderBuildProtagonists Protagonists]] | [[Characters/KamenRiderBuildFaust Faust]] | [[Characters/KamenRiderBuildToutoGovernment Touto Government]] | [[Characters/KamenRiderBuildHokuto Hokuto Government]] | [[Characters/KamenRiderBuildSeito Seito Government]] | [[Characters/KamenRiderBuildNambaHeavyIndustries Namba Heavy Industries]] | '''Movie-Exclusive Characters''']]-]

[[caption-width-right:210:Bikaiser]]

[[caption-width-right:210:''Are you ready? Overflow! Wake up Cross-Z! Get GREAT DRAGON! Buraburaburabura Bura~h! Yabei!''[[note]]''Burnburnburnburn Bu~rn! OH NO!''[[/note]]]]

[[caption-width-right:250:''Are you ready? Spider! Spider! Killbus Spider!'']]

[[caption-width-right:210:''Are you ready? Overflow! Wake up Cross-Z! Get GREAT DRAGON! Buraburaburabura Bura~h! Yabei![[note]]Burnburnburnburn Bu~rn! OH NO![[/note]]]]

[[caption-width-right:250:''Are you Ready? Uncontrol Switch! Black Hazard! Yabei!''[[note]]OH NO![[/note]]]]

!!!'''Portrayed by:''' Kenji Ohtsuki

!!!'''Portrayed by:''' Masanobu Katsumura

[[quoteright:210:https://static.tvtropes.org/pmwiki/pub/images/kengo_ino_2.png]]
[[caption-width-right:210:[[labelnote:Kamen Rider Blood]]https://static.tvtropes.org/pmwiki/pub/images/kamen_rider_blood.png[[/labelnote]]]]

!!!'''Portrayed by:''' Rena Matsui

!!!'''Portrayed by:''' Takeshi Fuji

!!!'''Portrayed by:''' Creator/AnriKatsu (voice), Gaku Shindo (physical appearance)

[[caption-width-right:250:[[labelnote:Kamen Rider Killbus]]https://static.tvtropes.org/pmwiki/pub/images/killbus_kr.png[[/labelnote]]]]

!!!'''Portrayed by:''' Tamiyasu Cho

* SayMyName '''Banjo''' '''''Ryuga!'''''

!!Blood Tribe

* {{Hypocrite}}: The Blood Tribe aren’t the paragons of moral honor, but Ino stands out among them, chastising the Kamen Riders for being tools of war, never mind half of what the Blood Tribe has pulled and destroyed. [[spoiler:And that Ino happily brainwashed an entire nation to MindRape Sento.]]

* ThisCannotBe: [[spoiler:Exclaims this when [=Cross-ZBuild=] lands his Rider Kick on him.]]

!!Ryoka Saiga/Scissors Lost Smash [[spoiler:II]]

* ThisCannotBe: [[spoiler:Spends her last moments in disbelief that a human could kill her since the Blood Tribe is "supposed to be stronger."]]

!!Mitsuomi Gobara/Zebra Lost Smash [[spoiler:II]]

* FamilyUnfriendlyDeath: [[spoiler:Gets by far the most brutal death out of all of the Blood Tribe: Grease ties him to a pillar with the Rose Bottle's vines, then fills him full of holes with bullets from behind.]] Given he's the one who's responsible for Kasumi's death it counts as KickTheSonOfABitch.

* ThisCannotBe: [[spoiler:A more understated one than the other three: his last words are "No way!" as Grease kills him.]]

* CainAndAbel: The Cain to Evolt's Abel. He tries to kill Evolt by absorbing him into the White Pandora Panel to use as energy for a new Pandora's Box, [[spoiler:but Evolt gets the last laugh by fusing with Cross-Z to defeat him]].

* DevourTheDragon: When [[spoiler:Cross-Z Evol]] starts getting the upper hand in their battle, he powers himself up by absorbing the Clone Smash that he spawned to fend off Grease and Rogue.

* LastOfHisKind: Following Evolt’s demise, Killbus is the last known member of the Blood Tribe. [[spoiler:At least until Evolt comes back and helps kill him.]]

* NiceJobFixingItVillain: Using Ryuga to recreate Pandora's Box near the start of the movie causes a ripple effect that [[spoiler:restores the memories of everyone who was subject to the Nebula Gas experiments.]]

Evolto's race and the main antagonists of TV series, ''Film/KamenRiderBuildBeTheOne'' summer movie and ''Recap/KamenRiderBuildNewWorldKamenRiderCrossZ'' V-Cinema. Originally from Planet Blood, its higher echelons escaped after their leader destroyed their home planet. Not much known about their early history, apart from being {{Obviously|Evil}} AlwaysChaoticEvil aliens who devoured countless of planets across the universe.

* EnemyCivilWar: While they're all OmnicidalManiac, they differ in how they want to go about it, resulting in them coming into conflict with one another. Evolto wants to draw out destroying planets for his own amusement, Blood and his faction desires to destroy Earth [[PragmaticVillainy as quickly as possible so they can move on to the next one]], and whereas the other members want to survive the destruction of everything, Killbus wants to destroy ''literally'' everything, himself and the rest of the Blood Tribe included. The latter is why Evolto and the rest of the Tribe stole Pandora Box and headed off on their own.

** The majority of the surviving Blood Tribe just want to kill everything in a quick and orderly manner and thus object to Evolto's desire to draw out destroying Earth out of sadism and trying to enhance himself. This causes them to have a falling out with him and attempt to destroy Earth themselves.
** While they all want to destroy everything, even Evolto wants to ''survive'' destroying everything else. As a result, the other survivors objected to Killbus wanting to kill the Blood Tribe too and stole the Pandora Box and fled.

The new governor of Touto following the reunification of Japan. In truth, Kengo is a member of Evolto’s species, the Blood Tribe, and arrived with two others of his kind shortly after Evolto reached Earth, working together with Evolto behind the scenes. Using the Cobra Lost Fullbottle with a Build Driver, combined with the Hazard Trigger and Great Cross-Z Dragon, Kengo can transform into Kamen Rider Blood.

** BigBadWannabe: He tries to usurp Evolto over Evolto’s desire to drag out the destruction of Earth for his own purposes, but ultimately he requires a mishmash of upgrades and devices to approach artificially what Evolto has ''naturally''. In the end he ends up on a similar level to Build Genius, at a stage when Evol Black Hole is perfectly capable of taking on all four riders at once. Doubled down in ''New World'' which introduces Killbus, Evolto’s older and ''stronger'' brother. Forget trying to keep up, Blood’s not even on the same ''track''.
* CantCatchUp: He’s the second strongest of the Blood Clan in the movie, but he's second to [[StoryBreakerPower Evolto]] by a ''gigantic'' margin. Ino can only become Kamen Rider Blood by kitbashing parts of Build Hazard, Great Cross-Z, and Blood Stalk together with a Build Driver ''and'' has to fuse with the other members of the Blood Tribe to do it. Even after jumping through all of these hoops, he’s ''still'' only on par with Evol’s base form, and saved from a thrashing by the fact Evolto is too lazy to bother dealing with Blood himself when he can just make Sento do it for him. Even his jingle is underwhelming, as it simply adds the Hazard Trigger sounds and a weak added sound to Great Cross-Z’s jingle.

* OffstageVillainy: Ino and the other members of the Blood Tribe were working behind the scenes the whole time to help Evolto orchestrate his schemes by manipulating the three factions while he was busy setting up Faust. His gift of Japan’s three nations to them was intended as the reward for their help, not that they’re grateful when they’d rather just blow the planet up and move on.
* OmnicidalManiac: Like Evolto, given they’re the same species. However, Blood just wants to destroy Earth and be done with it, causing a falling out between him and Evolto.
* PragmaticVillainy: While he ''does'' want to destroy the Earth like Evolto, he has no interest in drawing things out for fun like Evolto and just wants Earth destroyed. This results in Blood and his fellows falling out with Evolto.
* TheStarscream: PlayedWith: he was originally subservient to Evolto along with the other two governors, and Evolto is naturally far stronger than them. However, it’s ''Evolto'' who deviates from the plan for his own ends, Blood is merely trying to carry out the original plan.

The king of the Blood Tribe and Evolto’s older brother. He arrives searching for Evolto to reclaim Pandora's Box that Evolto stole from him and mistakes Ryuga for his brother.

* AncientEvil: He is Evolto’s older brother, and like him, millions of years old.
* AuthorityEqualsAsskicking: The King of the Blood Tribe and its most powerful member, surpassing even Evolto and Ino.
* AxCrazy: He’s even nuttier than Evolto, which is saying something. Where Evolto simply wanted to become the strongest, and only, being in the universe, Killbus wants to annihilate the universe and himself in a Big Bang because he thinks it’d be a cool way to die.
* BeyondTheImpossible: Killbus is said to be stronger than Evolto, without any use of the Evol Driver.

* BigBrotherBully: The ways he tosses around Banjo and Evolto along with his general demeanor are a lot like that of a bully picking on someone smaller.
* CainAndAbel: The Cain to Evolto's Abel. He tries to kill Evolto by absorbing him into the White Pandora Panel to use as energy for a new Pandora's Box, [[spoiler:but Evolto gets the last laugh by fusing with Cross-Z to defeat him]].

* EvilKnockoff: Before he swipes the Killbuspider, he simply uses Best Matches to become ''Build''. Even in this form he’s much stronger than Ryuga and holds the upper hand in a fight against Evolto’s Blood Stalk form.
* EvilUncle: He's Evolto’s brother and thus Ryuga’s uncle.
* EvilerThanThou: To Evolto of all people. Evolto does think highly of humans ([[HumansAreTheRealMonsters for mostly twisted reasons]], albeit) while Killbus thinks everything is beneath him. Even Evolto is shocked at how destructive he is. If nothing else, Evolto at least wants to ''survive'' killing everything else, whereas Killbus wants to kill himself and the Blood Tribe off too.

* FauxAffablyEvil: Killbus can be pretty jovial and the way he greets Evolto again is just like a brother talking to a sibling he hasn’t seen in a while, though it’s easy to see he’s just a psychotic planet destroyer. And he never drops his cheerful attitude even when picking on Evolto like a bully.
* ForTheEvulz: Killbus' only motive for destroying things is because he likes destroying things. To quote Evolto, “he’s a hedonist with a love of destruction”.

* GodzillaThreshold: Killbus just ''being there'' is enough to get Evolto [[EnemyMine to work with Ryuga and Team Build]]. Granted, this is mostly because Killbus' desire to kill literally everything includes Evolto, [[ArsonMurderAndJaywalking but also even himself]].
* GreaterScopeVillain: Of the entire ''Build'' series. Killbus’ destruction of the Blood Tribe’s homeworld and his orders to the remaining members of his tribe is what drove Evolto and his minions to steal Pandora's Box and eventually pick a fight with Queen Vernage, setting the events of the series. Not bad for a character who only appears in one movie, huh?
** In an ''even wider sense'', his destruction of Planet Blood is what made Evolto able to be a galaxy wandering PlanetEater in the first place. Considering Evolto was behind nearly every other villain in the TV series, this makes Killbus responsible for all of that by proxy.

* LargeHam: Just like Evolto, he loves attention.
* LastOfHisKind: Following Evolto’s demise, Killbus is the last known member of the Blood Tribe. [[spoiler:At least until Evolto comes back and helps kill him.]]

* TheManBehindTheMan: Evolto states that Killbus is the one who gave out the order to destroy planets to the other members of the Blood Tribe, making him responsible for Evolto and the other surviving Blood Tribe members’ planet-destroying sprees.

* PsychopathicManchild: Even more so than Evolto. His behavior is an alien equivalent to a sadistic schoolyard bully.

* StrongerSibling: He’s even more powerful than his younger brother. Evolto has never beaten him in a straight fight, seemingly even with access to Black Hole or his monster form. As mentioned previously, Kamen Rider Evol is in the running for one of the most powerful riders of all time. And using just Build’s Driver and a few extras, Killbus is able to curb stomp Evol Phase 1: Cobra and Cross-Z Magma (who is strong enough to at least briefly hinder Evol Phase 4: Black Hole). Killbus also states that in the millions of years they’ve been apart, he’s been wiping out and absorbing planets, making him even stronger. Fair to say we’re all glad there wasn't an Evol Driver handy for him to try out.

* SuicidalCosmicTemperTantrum: Takes his {{omnicidal mania|c}} one step further than his brother. Evolto wants to travel from planet to planet, torturing their inhabitants for his own amusement before eating their planets to continue his own evolution. Killbus wants to just wipe out the entire universe, ''including himself''. Evolto thus turns against Killbus to ensure his own survival.
* SuspiciouslySimilarSubstitute: His personality is Evolto's, but with his LargeHam and OmnicidalManiac tendencies ramped UpToEleven, and is so bad that Evolto works with Team Build for his own sake.

* TheHedonist: Evolto describes him as 'a hedonist in love with destruction,' which essentially translates to Killbus' entire existence being devoted to destroying everything ForTheEvulz. [[DeathSeeker Including himself.]]

* AscendedExtra: [[spoiler:Like Yui from the previous ''Build NEW WORLD'', he is one of the victims that Evolto used to make one of the four Lost bottles he already had.]]

* AscendedExtra: [[spoiler:She’s one of the victims that Evolto used to make one of the four Lost bottles he already had.]]

* RescueRomance: [[spoiler:She gains feelings for Banjo when he protected her from Killbus and later Evolto.]]

!!!Portrayed by Kenji Ohtsuki

!!!Portrayed by Masanobu Katsumura

!!!Portrayed by Rena Matsui

!!!Portrayed by Takeshi Fuji

!!!Portrayed by Creator/AnriKatsu (voice), Gaku Shindo (physical appearance)

!!!Portrayed by Michael Tomioka

* ButtMonkey: The messy-haired blond that attacks Grease early on in the film ''really'' can't get a break, constantly being harassed throughout the film even while transformed. [[spoiler: It isn't until Metal Build gets Grease down to his last legs that he's able to land a solid hit at all, though this is quickly invalidated by both being disintegrated to become parts for Phantom Build, and Phantom Build's defeat at the hands of Perfect Kingdom]].

!!Keiji Uraga/Kamen Rider Metal Build/[[spoiler: Zebra Lost Smash I]]/[[spoiler:Kamen Rider Phantom Build]]
!!!Portrayed by Tamiyasu Cho

** Metal Build [[spoiler: as well as its upgrade Phantom Build]] is this to regular Build, as it represents the biggest fear its creators had when developing the Rider System: that would be used as a weapon of war to terrorize the people it was created to protect. This is even lampshaded by the Hokuto Three Crows, especially Shuuya/Aoba, when Metal Build is basically Build Hazard Form, the only form to instill fear into others instead of inspiring hope. This is also reflected in him using two Tank bottles, as [[spoiler:the abiotic half of Best Matches represents something that destroys the biotic half]], something Sento defies but Keiji embraces.

!!!Portrayed by Mariya Nagao

!!Ryoka Saiga/Scissors Lost Smash [[spoiler: II]]

The new governor of Hokuto and a member of the Blood Tribe, arriving alongside Kengo Ino and Mistuomi Gahara. Using the Scissors Lost Fullbottle, she becomes the Scissors Lost Smash.

!!Mitsuomi Gobara/Zebra Lost Smash [[spoiler: II]]

* AncientEvil: He is Evolto’s older brother, and like him millions of years old.

Evolt's race and the main antagonists of TV series, ''Film/KamenRiderBuildBeTheOne'' summer movie and ''Recap/KamenRiderBuildNewWorldKamenRiderCrossZ'' V-Cinema. Originally from Planet Blood, its higher echelons escaped after their leader destroyed their home planet. Not much known about their early history, apart from being {{Obviously|Evil}} AlwaysChaoticEvil aliens who devoured countless of planets across the universe.

* EnemyCivilWar: While they're all OmnicidalManiac, they differ in how they want to go about it, resulting in them coming into conflict with one another. Evolt wants to draw out destroying planets for his own amusement, Blood and his faction desires to destroy Earth [[PragmaticVillainy as quickly as possible so they can move on to the next one]], and whereas the other members want to survive the destruction of everything, Killbus wants to destroy ''literally'' everything, himself and the rest of the Blood Tribe included. The latter is why Evolt and the rest of the Tribe stole Pandora Box and headed off on their own.

** The majority of the surviving Blood Tribe just want to kill everything in a quick and orderly manner and thus object to Evolt's desire to draw out destroying Earth out of sadism and trying to enhance himself. This causes them to have a falling out with him and attempt to destroy Earth themselves.
** While they all want to destroy everything, even Evolt wants to ''survive'' destroying everything else. As a result, the other survivors objected to Killbus wanting to kill the Blood Tribe too and stole the Pandora Box and fled.

The new governor of Touto following the reunification of Japan. In truth, Kengo is a member of Evolt’s species, the Blood Tribe, and arrived with two others of his kind shortly after Evolt reached Earth, working together with Evolt behind the scenes. Using the Cobra Lost Fullbottle with a Build Driver, combined with the Hazard Trigger and Great Cross-Z Dragon, Kengo can transform into Kamen Rider Blood.

** BigBadWannabe: He tries to usurp Evolt over Evolt’s desire to drag out the destruction of Earth for his own purposes, but ultimately he requires a mishmash of upgrades and devices to approach artificially what Evolt has ''naturally''. In the end he ends up on a similar level to Build Genius, at a stage when Evol Black Hole is perfectly capable of taking on all four riders at once. Doubled down in ''New World'' which introduces Killbas, Evolt’s older and ''stronger'' brother. Forget trying to keep up, Blood’s not even on the same ''track''.
* CantCatchUp: He’s the second strongest of the Blood Clan in the movie, but he's second to [[StoryBreakerPower Evolt]] by a ''gigantic'' margin. Ino can only become Kamen Rider Blood by kitbashing parts of Build Hazard, Great Cross-Z, and Blood Stalk together with a Build Driver ''and'' has to fuse with the other members of the Blood Tribe to do it. Even after jumping through all of these hoops, he’s ''still'' only on par with Evol’s base form, and saved from a thrashing by the fact Evolt is too lazy to bother dealing with Blood himself when he can just make Sento do it for him. Even his jingle is underwhelming, as it simply adds the Hazard Trigger sounds and a weak added sound to Great Cross-Z’s jingle.

** In the grand scheme of things, he's the ''third'' most powerful of the Blood Clan overall. Everything that applies to him as detailed above is magnified by an ''enormous'' factor when [[BeyondTheImpossible Killbus]] is taken into account.

* OffstageVillainy: Ino and the other members of the Blood Tribe were working behind the scenes the whole time to help Evolt orchestrate his schemes by manipulating the three factions while he was busy setting up Faust. His gift of Japan’s three nations to them was intended as the reward for their help, not that they’re grateful when they’d rather just blow the planet up and move on.
* OmnicidalManiac: Like Evolt, given they’re the same species. However, Blood just wants to destroy Earth and be done with it, causing a falling out between him and Evolt.
* PragmaticVillainy: While he ''does'' want to destroy the Earth like Evolt, he has no interest in drawing things out for fun like Evolt and just wants Earth destroyed. This results in Blood and his fellows falling out with Evolt.
* TheStarscream: PlayedWith: he was originally subservient to Evolt along with the other two governors, and Evolt is naturally far stronger than them. However, it’s ''Evolt'' who deviates from the plan for his own ends, Blood is merely trying to carry out the original plan.

The king of the Blood Tribe and Evolt’s older brother. He arrives searching for Evolt to reclaim Pandora's Box that Evolt stole from him and mistakes Ryuga for his brother.

* AncientEvil: He is Evolt’s older brother, and like him millions of years old.
* AuthorityEqualsAsskicking: The King of the Blood Tribe and its most powerful member, surpassing even Evolt and Ino.
* AxCrazy: He’s even nuttier than Evolt, which is saying something. Where Evolt simply wanted to become the strongest, and only, being in the universe, Killbus wants to annihilate the universe and himself in a Big Bang because he thinks it’d be a cool way to die.
* BeyondTheImpossible: Killbus is said to be stronger than Evolt, without any use of the Evol Driver.

* BigBrotherBully: The ways he tosses around Banjou and Evolt along with his general demeanor are a lot like that of a bully picking on someone smaller.
* CainAndAbel: The Cain to Evolt's Abel. He tries to kill Evolt by absorbing him into the White Pandora Panel to use as energy for a new Pandora's Box, [[spoiler:but Evolt gets the last laugh by fusing with Cross-Z to defeat him]].

* EvilKnockoff: Before he swipes the Killbuspider, he simply uses Best Matches to become ''Build''. Even in this form he’s much stronger than Ryuga and holds the upper hand in a fight against Evolt’s Blood Stalk form.
* EvilUncle: He's Evolt’s brother and thus Ryuga’s uncle.
* EvilerThanThou: To Evolt of all people. Evolt does think highly of humans ([[HumansAreTheRealMonsters for mostly twisted reasons]], albeit) while Killbus thinks everything is beneath him. Even Evolt is shocked at how destructive he is. If nothing else, Evolt at least wants to ''survive'' killing everything else, whereas Killbus wants to kill himself and the Blood Tribe off too.

* FauxAffablyEvil: Killbus can be pretty jovial and the way he greets Evolt again is just like a brother talking to a sibling he hasn’t seen in a while, though it’s easy to see he’s just a psychotic planet destroyer. And he never drops his cheerful attitude even when picking on Evolt like a bully.
* ForTheEvulz: Killbus' only motive for destroying things is because he likes destroying things. To quote Evolt, “he’s a hedonist with a love of destruction”.

* GodzillaThreshold: Killbus just ''being there'' is enough to get Evolt [[EnemyMine to work with Ryuga and Team Build]]. Granted, this is mostly because Killbus' desire to kill literally everything includes Evolt, [[ArsonMurderAndJaywalking but also even himself]].
* GreaterScopeVillain: Of the entire ''Build'' series. Killbus’ destruction of the Blood Tribe’s homeworld and his orders to the remaining members of his tribe is what drove Evolt and his minions to steal Pandora's Box and eventually pick a fight with Queen Vernage, setting the events of the series. Not bad for a character who only appears in one movie, huh?
** In an ''even wider sense'', his destruction of Planet Blood is what made Evolt able to be a galaxy wandering PlanetEater in the first place. Considering Evolt was behind nearly every other villain in the TV series, this makes Killbas responsible for all of that by proxy.

* LargeHam: Just like Evolt, he loves attention.
* LastOfHisKind: Following Evolt’s demise, Killbus is the last known member of the Blood Tribe. [[spoiler:At least until Evolt comes back and helps kill him.]]

* TheManBehindTheMan: Evolt states that Killbus is the one who gave out the order to destroy planets to the other members of the Blood Tribe, making him responsible for Evolt and the other surviving Blood Tribe members’ planet-destroying sprees.

* PsychopathicManchild: Even more so than Evolt. His behavior is an alien equivalent to a sadistic schoolyard bully.

* StrongerSibling: He’s even more powerful than his younger brother. Evolt has never beaten him in a straight fight, seemingly even with access to Black Hole or his monster form. As mentioned previously, Kamen Rider Evol is in the running for one of the most powerful riders of all time. And using just Build’s Driver and a few extras, Killbus is able to curb stomp Evol Phase 1: Cobra and Cross-Z Magma (who is strong enough to at least briefly hinder Evol Phase 4: Black Hole). Killbas also states that in the millions of years they’ve been apart, he’s been wiping out and absorbing planets, making him even stronger. Fair to say we’re all glad there wasn't an Evol Driver handy for him to try out.

* SuicidalCosmicTemperTantrum: Takes his {{omnicidal mania|c}} one step further than his brother. Evolt wants to travel from planet to planet, torturing their inhabitants for his own amusement before eating their planets to continue his own evolution. Killbus wants to just wipe out the entire universe, ''including himself''. Evolt thus turns against Killbas to ensure his own survival.
* SuspiciouslySimilarSubstitute: His personality is Evolt's, but with his LargeHam and OmnicidalManiac tendencies ramped UpToEleven, and is so bad that Evolt works with Team Build for his own sake.

* TheHedonist: Evolt describes him as 'a hedonist in love with destruction,' which essentially translates to Killbas' entire existence being devoted to destroying everything ForTheEvulz. [[DeathSeeker Including himself.]]

* TheLeader: Of Down Fall [[spoiler: before being betrayed by Keiji.]]

* AscendedExtra: [[spoiler:Like Yui from the previous ''Build NEW WORLD'', he is one of the victims that Evolt used to make one of the four Lost bottles he already had.]]

* HistoryRepeats: Once again, [[spoiler: Kazumi's opponent in a movie is related to the Zebra Lostbottle.]]

* AscendedExtra: [[spoiler:She’s one of the victims that Evolt used to make one of the four Lost bottles he already had.]]

* RescueRomance: [[spoiler:She gains feelings for Banjou when he protected her from Killbas and later Evolt.]]
* TheResenter: She spends a good part of the movie hating Banjou. [[spoiler:Because he didn’t help her and her students, it lead to her being experimented on and then killed to make a Lost Bottle. It doesn’t help that he explains when he first became a Kamen Rider, he was still self-centered that he wasn’t in the mindset to help the people around him. As such she thinks he [[ItsAllAboutMe only cares about himself.]] It’s Misora and then Banjou later saving her from Killbus while he was weakened that made her change her mind about him.]]
* ShipTease: With Banjou. [[spoiler:The end of the movie has her giving him a big hug, kissing his cheek and helping him selling Sento's inventions, with Sento even calling their outing a date.]]
[[/folder]]

* GodzillaThreshold: Killbus just ''being there'' is enough to get Evolt [[EnemyMine to work with Ryuga and Team Build]]. Granted, this is mostly because Killbus' desire to kill literally everything includes Evolt.

* InTheBlood: Both he and his brother turned out as sadists with a love of destruction. Makes you wonder what whatever spawned them is like.

Evolt's race and the main antagonists of TV series, ''Be the One'' summer movie and ''Build NEW WORLD: Kamen Rider Cross-Z'' V-Cinema. Originally from Planet Blood, its higher echelons escaped after their leader destroyed their home planet. Not much known about their early history, apart from being [[ObviouslyEvil obviously]] AlwaysChaoticEvil aliens who devoured countless of planets across the universe.

[[folder: Yui Mabuchi]]

[[folder: Kaisei Mogami]]
!!Kaisei Mogami / Kaiser / Kaiser Reverse / Bikaiser

!!Kengo Ino / Kamen Rider Blood

!!Ryoka Saiga / Scissors Lost Smash [[spoiler: II]]

!!Mitsuomi Gobara / Zebra Lost Smash [[spoiler: II]]

!!Killbus / Kamen Rider Killbus

* CainAndAbel: He tries to kill Evolt by absorbing him into the White Pandora Panel to use as energy for a new Pandora's Box, [[spoiler:but Evolt gets the last laugh by fusing with Cross-Z to defeat him]].

[[folder:Keiji Uraga[=/=]Kamen Rider Metal Build]]

!!Keiji Uraga / Kamen Rider Metal Build / [[spoiler: Zebra Lost Smash I]] /[[spoiler:Kamen Rider Phantom Build]]

!!Yui Mabuchi / [[spoiler: Scissors Lost Smash I]]