[[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/rsz_spiderriders24.png]]
[[caption-width-right:350:''Let's ride!'']]

->''"There exists within the planet Earth a fantastic lost world. In this Inner World, elite warriors ride huge spiders and bravely fight against evil. When the wicked rise, the call goes out: Calling all Spider Riders!"''
-->-- English opening Narration

Within the Earth exists the Inner World, created and blessed by a being known as the Spirit Oracle. There, a war has been waging between the humans and Insectors/Invectids. Following the journal of his late grandfather, 13-year-old Hunter Steele finds himself drawn into the Inner World. He soon encounters the independent spider Shadow, who eventually becomes his partner, as well as the mysterious girl Corona, one of the elite warriors known as Spider Riders, who welcomes Hunter into their team.

Along with Corona, Igneous, Prince Lumen, Princess Sparkle, and the former wanderer Magma, Hunter fights against Mantid and his Insector army, trying to prevent them from collecting the four Oracle Keys.

A rather underrated anime, due to its strange title and premise, a broadcast cut short on American TV, and its {{genre busting}}. Despite its inability to generate interest in most serious anime fans, the show did relatively well in Canada, where it was dubbed and funded.

There is also a novel series, online game, and canceled manga as part of the franchise.

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!!This show provides examples of:

* ActionGirl: Corona, Aqune, and Sparkle are all competent fighters, even though Sparkle gets less opportunity to prove it than the other two.
* ActionHoggingOpening: The second OP has a lot of action going on. While the show typically has a fight scene per episode (although some have none), it's not as much as you would expect from the genre.
* AgainstTheSettingSun: Used when Hunter declares that he'll save the people of Nuuma.
* AudienceSurrogate: Hunter, in that he's new to the Inner World, thus things need to be explained to him, as well as viewers.
* AwesomeMcCoolName: In the Japanese version there is one Insector soldier with the name Great Genius. Grasshop is impressed when he learns this.
* BackupFromOtherworld: [[spoiler:Quake/Brade fills the spot of the 8th Rider needed to awaken the Spirit Oracle]], even though he's dead. The Sea Buff Mariner/Lost Mariner, also dead, helps the Riders escape an attack at sea.
* BadBadActing: While staring in a play to help out a struggling theater owner. Hunter plays the leading man, but his performance is stilted due to nerves, and his speech turns monotone. Corona isn't much better, turning into a LargeHam, while Lumen's performance is decent (until he's DistractedByTheSexy audience member). Igneous gets stuck playing an Invectid commander, and [[SoreLoser takes his frustration out on Hunter on stage]].
* BadassNormal: Stags and Buguese. Normal as in they don't have any super powers.
* BaitAndSwitchCredits: Unlike in the first OP, Hunter never fights against Magma. It's unclear why blood is leaking from Aqune's mask in the 3rd ED.
* BattleCouple: Hunter and Corona, who consider each other battle partners, and clearly have feelings for each other, though they aren't officially a couple.
* BeachEpisode: Somewhat subverted, in that it's one of the more serious episodes, [[spoiler:but when Hunter, Corona, Magma and Aqune are taken to a paradise in order to draw them away from fighting, it includes a beach and skimpy swimsuits]].
* BeastAndBeauty: Buguese and Aqune. Even if Buguese is the most humanoid Insector, he's still not exactly... human. Aqune is the gentle, empathetic one who tries to see the good in everyone. Buguese is the brooding, angry one. Despite his hatred of humans, it's clear he has a soft spot for Aqune. [[spoiler:Freeing her is the last thing he does before confronting Mantid, which he expects will lead to his demise.]]
* BedsheetGhost: Hunter and Corona disguise themselves as one to sneak into an Insector/Invectid base.
* BeePeople: The Insectors/Invectids. Though ironically, Mantid is more their "queen" than Beerain.
* BeginnersLuck: Subverted, in that Hunter begins as a complete loser. In his first fight against a member of the Big Four, it's Corona who deals the final blow. He's also humiliated when fighting Igneous to prove himself as a Spider Rider.
* BeneathTheEarth: The whole Inner World.
* BewareTheNiceOnes: Sparkle. Most of the time she's a sweetheart. Threaten her or her friends, however, and she might just pound you with a yo-yo.
* {{BFS}}: Stags' sword definitely counts.
* BigDamnHeroes: It happens regularly. A notable example is episode 41, in which the Riders pull this off twice. Once after returning from Nuuma, and again later that night.
* {{Bishonen}}: Most of the male characters are handsome.
* BlindIdiotTranslation: Not too bad, but errors still occur here and there, such as when Portia was voiced by Brutus' VA in episode 31.
* BloodlessCarnage: There's never a drop of blood in this show, regardless of the injury.
* [[ABoyAndHisX A Boy and his Giant Spider]]
* BrainwashedAndCrazy: Aqune is frequently mind-controlled, but towards the end of the series [[spoiler:Mantid's Ultimate Machine-Sector turns out to be a trap, and her mask merges with it. She then drains the power from Hunter's Oracle Keys, much to the surprise and horror of Buguese, who was sitting next to her and perfectly convinced that he was in control. Afterwards, Mantid lends her additional power and pits her against the Spider Riders. Fortunately, Buguese stops her from killing Hunter]].
** Also, both Igneous and Corona in the 4th episode thanks to a flower, but it ends once the flower is exposed to light.
* BreakingTheFourthWall: The dub does this in the very last episode.
** Grasshop also does this at least once, in regards to the heroes' transformation sequence. In the Japanese version, he breaks the forth wall constantly, such as when he thanks the sound crew for playing fitting music.
* BrilliantButLazy: Lumen. He would rather sleep than do anything, making it hard to believe he's as skilled as he actually is.
* BrotherSisterIncest: There must have been a reason the dub cut a certain scene of Lumen watching Sparkle play and calling her "cute". And that's not the only instance that comes to mind.
* BugWar: It's there, but very much subverted in that the Insectors are both humanoid and sympathetic.
* ByThePowerOfGrayskull: In the dub, the phrase that activates the transformation sequence is "Arachna Power!" Each Rider has their own transformation phrase in the Japanese version.
* CallingYourAttacks: All the Riders do this.
* CanonForeigner: Several in the anime. Brade/Quake, Grey/Slate, Lily, Queen Elma/Illuma, Toure/Solan, Lorraine... just to name a few.
** On the other hand, Portia manages to be something of a CanonImmigrant. She first appeared in the anime, and her existence was at least mentioned in the 4th novel. Problem is, the 4th novel makes bizarre retcons to the original ones, and might not even count.
* CantCatchUp: Basically all the Riders when compared to Hunter using the Oracle Keys, Aqune and Brade/Quake serving as the only exceptions. Igneous even comments about just how far Hunter has come after their training session in episode 24, and that was when Hunter only had one Key.
* CatchPhrase: "Never give up" is Hunter's phrase in both versions, though his Japanese secondary catch phrase, "It's alright" (often mimicked by the others as well) was turned into the much cheesier "Arachna Power" in the dub.
* TheChessmaster: Mantid. [[spoiler:The Insectors don't realize that they're serving his master plan, and he plans to kill them all once it's complete.]]
* AChildShallLeadThem: Lumen is 12 and Sparkle is 8. There's no king or queen to be mentioned.
* ChronicHeroSyndrome: Hunter, [[spoiler:who even reaches the point of wanting to save the Invectids/Insectors, after realizing that they're being oppressed]].
* ComfortingComforter: In the 2nd episode, when Corona sees Hunter's leaf blanket fall off, she puts it back on him. This is one of the first hints of her romantic infatuation with him.
* CookingDuel: Corona and Aqune literally have one in episode 32.
* CosmicKeystone: The Oracle Keys.
* CuriousQualmsOfConscience: Despite having pledged his loyalty to [[BigBad Mantid]], one Invectid sergeant decides [[spoiler:he's tired of the war with the humans, and has already been suspicious of Mantid's behavior for some time. He helps the Spider Riders infiltrate Mantid's palace]].
* CuteMonsterGirl: Lemin/Katy fits into this trope. She is adorable, but Beerain subverts it.
* DarkIsNotEvil:The spiders themselves. [[spoiler:It takes being brought directly into Mantid's citadel for Hunter to finally grasp what his "enemies", who live in a world of darkness, are really fighting for. Of course, Mantid himself turns out to be insane anyway.]]
* DeadAllAlong:
** The Sea Buff Mariner/Lost Mariner.
** [[spoiler:Quake/Brade]].
* DeadpanSnarker: Shadow.
* DesolationShot: The Insector world gets a few of these, as do some other places that were wiped out in battle, like the town where the Riders stay the night in episode 34.
* {{Determinator}}: Hunter. His catch phrase is "never give up" for a reason.
* DiscoDan: On one occasion, Hunter dresses up as "Dan the Disco Man" in order to help Lumen out in a scheme to get girls.
* DisproportionateRetribution: Mantid. [[spoiler: My girlfriend died, so the world who took her away from me needs to be destroyed. Yeah...]] In all fairness, he said he'd suffered ''many'' losses, implying many other people he cared for died.
** And for whatever reason he decided to throw ''Imma go to the outer world [[spoiler:again]] and take it over'' in.
* DoItYourselfThemeTune: The 2nd OP is performed by Corona's seiyuu and the 3rd ED by Shadow and Aqune's.
* DrivenToSuicide: [[spoiler:Buguese, after finding out the truth and realizing how much he wronged his comrades in his efforts to capture the Oracle Keys, decides to crash Dark Opal into Mantid's castle, taking out Mantid with him. When he fails, he admits that he doesn't feel he deserves to live]].
* DrowningMySorrows: Grasshop does this once... only with milk. [[AlienCatnip Though this may be a bit more plausible than most cases due to his being an Invectid/Insector.]]
* DubInducedPlotHole: According to episode 23 of the dub [[spoiler:the sun was taken from the "Invectid" world as punishment for their race eating all the plant life]]. What actually happened was [[spoiler:Mantid caused its disappearance when he collected the four Oracle Keys, and the plant life died as a result]]. The dub goes with the true story later, making the already bizarre edit seem even more awkward.
** Though one could argue that all the Invectids believed and perhaps were told (by Mantid) the first story in order to make them hate the humans and The Oracle, when the second story was in fact the truth.
* DubText: Hunter and Aqune's promises to each other. Most indication that Hunter had romantic interest in her were dub only. The same could probably go for Buguese calling her "my beautiful" and "my sweet." Considering that the dub even went as far as to remove some of the Hunter/Corona moments, perhaps they just wanted to hook Aqune up with someone. Heck, the dub even hints at Aqune being interested in Quake/Brade.
* TheEmperor: Mantid, although the specific term isn't mentioned in the dub. [[spoiler:Buguese probably becomes this at the end.]]
* TheEndOfTheWorldAsWeKnowIt: Well, just the Inner World.
* EvenEvilHasLovedOnes: Of course there's Grasshop and his beloved family.[[spoiler:Much later we learn of Lorraine, the woman Mantid loved.]]
* EverythingsBetterWithPrincesses: Sparkle.
* EvilRedheads: Beerain
* ExpositoryThemeTune: "Calling All Spider Riders" for the English dub.
* {{Expy}}:
** Similar to other BeeTrain anime (Madlax, Noir), Spider Riders features Corona and Aqune, two girls with no memory of their past, and some sort of connection. Aqune and Madlax even share the same seiyuu.
** Slate/Grey is debatably an Expy of Petra from the novels, with a gender flip.
* FacialMarkings: The Insectors/Invectids have them. Whether they're genetic or painted is never brought up.
* FantasticRacism: Between humans and Insectors/Invectids.
* FiveBadBand: Mantid and the Big Four fit this perfectly. That would make Aqune the SixthRanger and Portia TeamPet.
* FinishingMove: Any of Hunter's Oracle Key attacks.
* FlyingDutchman: The Lost Mariner.
* GenreBusting: An action/adventure story with a twist... TheHero riding a GiantSpider.
* GiantSpider
* GladiatorGames: On several occasions, the Riders fight minor Insector/Invectid soldiers, or Machine-sectors inside a generated "Coliseum".
* GreenEyedMonster: At first, Corona refuses to accept [[spoiler:Aqune]] as an ally, mostly due to jealousy over her closeness to Hunter. In turn, Buguese despises Hunter for multiple reasons, one being Aqune's affection.
* HandsomeLech: Lumen. The fact that he's 12 doesn't lessen the effect.
* HandsOnApproach: As Hunter isn't a handmaiden, [[spoiler:he's unable to place an Oracle Key into the barrier in Nuuma castle. Corona helps him by putting her hand on his, and they break through together]].
* HeelFaceTurn: Applies to [[spoiler:all of the Big Four]].
** [[spoiler:Grasshop first, when he ultimately decides to rescue Sparkle (as well as Igneous and Lumen). He then remains an ally to the Spider Riders, traveling with them until the end.]]
** [[spoiler:Then Stags, who purposefully quits after being defeated by Hunter.]]
** [[spoiler:Next Beerain, who aids Grasshop by reminding him of an alternate way that the Riders can cross into Insector/Invectid lands. After that she leaves, and isn't seen again until she and Stags rescue Buguese.]]
** [[spoiler:And finally Buguese, who turns on Mantid after being betrayed. He then frees Aqune from Mantid's control, and makes it his mission to defeat his former leader himself.]]
* HorribleJudgeOfCharacter: [[spoiler:Buguese, who continued to follow Mantid loyally, despite knowing some of his intentions, believing that there would be no other way to restore sunlight to his land. He didn't even consider that the ultimate weapon Mantid handed to him might've been part of a trap.]]
* HostageSituation: Corona by way of Buguese, in exchange for both the Oracle Keys and Aqune. [[spoiler:Although Aqune was willing to return to him anyway in the Japanese version, and he's only able to get her back, because the other Riders return to retrieve the keys.]]
* HumongousMecha: All of the Machine-Sector's fit this category, [[spoiler:though only the last can actually be piloted]].
* IdiotHero: Hunter. He's not too bright, especially early on.
* IJustWantToBeNormal: Corona, in one particular episode. The rest seem to have no problem being Spider Riders, Hunter loving it enough to abandon whatever old life he might have had.
* ImprobableHairStyle: Igneous, who keeps it up in one massive spike.
* InternationalCoProduction: Produced with CookieJarEntertainment in Canada and BeeTrain Production Inc. in Japan. The Japanese producers did most of the work (writing, directing, and animation), with the Canadian producers providing the funding and the basis they had to work with.
* IWantMyBelovedToBeHappy: [[spoiler:Not to debate whether their relationship was romantic or platonic, but fitting to Buguese, when he reluctantly freed Aqune, allowing her to be with her comrades.]]
* KidHero: This basically applies to the whole Spider Rider team.
* KillerYoyo: Sparkle's signature weapon.
* TheKnightsWhoSaySquee: Magma is a huge fanboy of Brade/Quake, to the point where the man is somewhat afraid of him.
* LittleMissBadass: Sure, Sparkle's cute, but if you piss her off, she AND her adorable spider will kick your ass.
* LoveDodecahedron: Beerain-Buguese-Aqune-Hunter-Corona. Sparkle seems to have a thing for Hunter too. Lumen also hits on Sparkle in the Japanese version, and has declared his true love for Beerain. But he'll fall in love with just about anything female, so neither case was probably meant to be taken seriously.
* LighterAndSofter: The anime, in comparison to the novels they were based off of. The novels include much more sinister and less sympathetic Insectors (they eat humans, for one), as well as more depressing themes like Spider Riders ultimately aging out of their powers and losing the ability to speak with their spider partners.
* LoveMartyr: Although they're not actually in a relationship, Beerain is basically this. Buguese does not treat her well. At all. And it doesn't seem to change her feelings.
* LoveTriangle: Igneous-Elma/Illuma-Toure/Solan. [[spoiler:Not that the end resolution was ever a surprise, as Igneous' love was wholly unrequited.]]
* LullDestruction: Abused in the dub.
* MaskPower: Oracle Key power boosts aside, Buguese and Aqune are easily the most powerful characters in canon. Beerain subverts this by being generally less combative.
* MentorArchetype: Brade to Hunter. Igneous also plays this role to an extent.
* {{Miko}}: Corona and Aqune. They're referred to as this in the Japanese version, though not in a traditional sense.
* MindControlDevice: Aqune's mask. However, [[spoiler:she serves the Insectors/Invectids by choice; it's just the fighting she has a problem with, so she might count as NotBrainwashed too]].
* MiniatureSeniorCitizens: Quake/Brade. He was much taller in flashbacks to his younger days.
* {{Minionshipping}}: [[spoiler:Beerain is deeply infatuated with Buguese, who in turn has a strong care for Aqune, debatably romantic attraction. Aqune cares about Buguese, but not necessarily on a romantic level. Buguese also respects and cares for Beerain as a comrade, though never returns her romantic feelings.]]
* MoodSwinger: Stags. Especially in the Japanese version, where he'll burst into fits of maniacal laughter for no reason.
* MookPromotion: The Big Four were minor characters in the novels.
* MoralityPet: Sparkle to Grasshop, and to an extent, Aqune to Buguese.
* MotorMouth: Grasshop. He can talk for several minutes straight without stopping.
* MySisterIsOffLimits: Lumen gets jealous whenever someone gets close to Sparkle.
* MysteriousPast: Corona and Aqune. But at least we get to find out most of Corona's.
* NeverSayDie: Actually averted in some of the dub episodes.
** It's played straight in the short-lived Kids WB cut of the same dub, however. Some awkward changes were made just to avoid references to death.
* NoMrBondIExpectYouToDine: Hunter is treated quite well when taken prisoner by the Insectors/Invectids. Mantid even offers him Aqune. [[spoiler:But as it turns out, Mantid was just trying to convince him to give them the Oracle Keys, which he didn't even have with him. Fortunately, Brade intervenes and rescues him]].
* NonHumanSidekick: Any of the spiders.
* NoOneCouldSurviveThat: [[spoiler:Stags]] manages to survive after purposefully falling backwards off a building, which was already floating high in the air. More surprisingly, he didn't even appear hurt. [[note]]He IS based on a Stag Beetle, after all. Beetles have hard exoskeletons in real life to protect them, so it's possible this also applies to the Insectors/Invectids.[[/note]]
* ObviousTrap: How about following the only villager left in a conspicuously empty village into a cave? Genius, if you ask me.
* OddlyNamedSequel2ElectricBoogaloo: "Spider Riders: Yomigaeru Taiyou," (The Resurrected Sun) made no sense until the last episode [[spoiler:when the sun finally did get resurrected]].
* OlderThanTheyLook: [[spoiler:Mantid. Keep in mind that he fought against the first Spider Rider, and Brade/Quake, who was either from King Arachna III's generation or later, is old enough to be an adult's great great grandfather.]].
* TheOnlyOne: The Arachnian military is generally incompetent, leaving the Spider Riders to bail them out on occasions.
* OnlyOneName: Everyone from the Inner World. The dub gave Grasshop a full name, though.
* OnTheNext: Although cut from the dub, all the Japanese episodes featured previews narrated by various characters. The ones in the first season in particular could be pretty hilarious, and often very OOC, even when [[TheBigBad Mantid]] was the one narrating.
* ParentalAbandonment: No one in this show has parents who are mentioned. Magma's family is at least confirmed dead, but with the rest of the cast, it's anybody's guess what happened to them.
* ThePawn: [[spoiler:The Big Four and Aqune]].
* PlotArmor: Could anyone honestly believe [[spoiler:Hunter was killed in his fight against Stags, 3/4 into the show]]?
* RaisedByWolves: Aqune was raised by Insectors/Invectids. The Insectors/Invectids act like human beings, so she does.
* RebelliousPrincess: Sparkle. She doesn't appreciate being left behind, and will sneak out to fight with everyone else if she has to.
* RecapEpisode: Episode 41. A creative one in that it doesn't really use much stock footage, but it re-accounts the Nuuma arc.
* {{Reincarnation}}: According to original plans for the series, Aqune was the Oracle's reincarnation. Because the plot was [[WhatCouldHaveBeen changed so much]], there's no way of telling if that's still true.
* TheReveal: A big dose is revealed near the end of the series when Mantid admits that [[spoiler:he's an Earthen like Hunter. On top of that, it's also a subtle CallBack to the beginning of the series]]. A prophecy stated that an Earthen would bring great evil to the Inner World... and one did.
* RidiculouslyCuteCritter: Hotarla, the smallest spider. The messenger bugs are also kind of adorable.
* TheRival: Buguese vs. Hunter.
* RomanticRunnerUp: Igneous, when he pursues Elma/Illuma.
* RoyalsWhoActuallyDoSomething: Lumen and Sparkle... although Lumen would prefer to be lazy.
* RunningGag: Both Corona's terrible cooking and Lumen's tendency to flirt with anything female, regardless of age, [[InterspeciesRomance species]], or [[BrotherSisterIncest relation to him]].
* SatelliteCharacter: Grey/Slate. His friendship with Igneous is basically all there is to his character. And most of the spiders for that matter, aside from Shadow and maybe Brutus.
* SaveBothWorlds: Averted. The BigBad ''says'' that he intends on conquering the Outer World, but he's defeated before he can even get there. Considering that this is an anime that involves a boy from earth getting [[TrappedInAnotherWorld sucked into a subterranean world beneath our own]], the fact that we didn't even see some strange phenomenon going on in the outer world is rather unique.
* SayMyName: Watch any episode (besides the first). Try and guess Corona's favorite word. This is abused in the series in general.
* SeashellBra: Aqune's transformed outfit.
* ShesAManInJapan: Although a gender isn't actually confirmed, one of Grasshop's children was made to sound more feminine in the dub. In the Japanese, both are confirmed to be male.
* ShrinesAndTemples: Likely places for Oracle Keys to be hidden.
* ShowWithinAShow: The play titled "The Adventures of the Legendary Hero Quake".
* SpellMyNameWithAnS:
** "Aqune" is "Aquine" in the online game. Her name is often mistakenly spelled as "Akune" or "Aquna" by the fans.
** "Igneous" became "Ignus" in the anime (the dub brought it back to "Igneous", as it was in the novels) because [[WordofGod it was easier for the Japanese to pronounce.]]
** Try to find people in the fandom who know how to spell "Buguese". You'll have trouble. Doesn't help that the way his name is written in Japanese reads more like "Baggus".
* ShellShockedVeteran: The show takes this trope ''very'' seriously, especially during the Nuuma arc and beyond. [[spoiler:Mantid is one himself; it's what led him to his StartOfDarkness.]]
* ShipperOnDeck: On a few occasions, Magma has tried to help Hunter and Corona's relationship, [[spoiler:such as restraining Igneous so Corona could be the first to greet him after they were separated]]. Then there's Corona's sisters, and many other residents of her hometown.
* ASimplePlan: The episode "Ghost Spider", easily the most pointless filler episode in the series.
* SpiderTank: The entire show is based around this trope.
* SpoilerOpening: The second OP is really bad about this. [[spoiler:For one, it shows Aqune with the Spider Riders, even though she doesn't officially join them until the fourth-to-last episode.]] Next, it reveals the existence of [[spoiler:Quake/Brade, as well as the fact that he's a Spider Rider, and has a younger form. Although viewers could assume that younger Quake/Brade was a different person entirely]].
* {{Synchronization}}: [[spoiler:Since they're handmaidens, hurting the Oracle also harms Corona and Aqune.]]
* SuperSoldier: Mantid creates a stronger type of Insector/Invectid soldier after acquiring a second Oracle Key.
* SwordFight
* SwordSparks
* TakeMyHand: Towards the end of the series, [[spoiler:Beerain saves Buguese this way. Hunter also offers his hand to Mantid, which he accepts]].
* ThemeNaming: With Hunter and Aqune as exceptions, the humans have mostly sun-related (Corona, Sparkle, Lumen) or Earth-related (Igneous, Magma, Grey) names. There are even more cases in the dub, due to the name changes. The Insectors names are all bug-related.
* ThemeTuneCameo: In one episode, Aqune hums the 2nd ED theme (Japanese version only).
* ThouShaltNotKill: Aqune. [[spoiler: Towards the end of the series, the other Riders pick up this way of thinking, thanks to Quake/Brade]].
* ThrowingYourSwordAlwaysWorks: Subverted in that it missed, [[spoiler:but it's not like Buguese intended to kill Beerain, so it really did work as a threat]].
* TransformationSequence: Always a sign of lazy animators. [[DubText In the English version]], Grasshop actually comments that the children take too long to transform during a battle.
--> '''Grasshop:''' So you finally finished transforming? About time!
* TransformationTrinket: Manacles.
* TrappedInAnotherWorld: Hunter in the Inner World.
* TrueCompanions: The Spider Riders.
* {{Turncoat}}: [[spoiler:Grasshop.]]
* UpgradeArtifact: Besides the manacles that allow the Riders to transform, using the Oracle Keys allow more powerful transformations.
* TheUnchosenOne: Hunter is believed by all to be TheChosenOne due to his apparent ability to control the power of the Oracle keys, but it turns out [[spoiler:Corona was the one with the ability to call upon the Oracle and her keys for help]]. Of course it's eventually revealed, but doesn't affect the plot much.
* WeAreTeamCannonFodder: The last episode pits Hunter against Mantid. Everyone else just sits there looking helpless. Corona and Aqune give him power, and then go back to looking helpless.
* WhipItGood: Beerain.
* WhipSword: Lumen has one.
* WillTheyOrWontThey: Hunter and Corona. So much ShipTease...
* WritingAroundTrademarks: Despite being known as Insectors in both the novels and the Japanese version, they were changed to Invectids in the dub due to legal reasons, or so says WordOfGod.
* YouGottaHaveBlueHair: Igneous' is blue, Aqune's is purple, Hunter's is pinkish-orange, Lily's is lavender, and Elma/Illuma's is green. Most other characters actually have plausible colors.

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