* {{Adorkable}}: Delete, though he and Buzz work for the Hacker, he's got a thing for bunnies and cute things and is somewhat sensitive.
* AmericansHateTingle: While not outright hated, the show had quite a low viewership in the United Kingdom during its run to the point where it was taken off Pop around 2007-2012.
* AngstWhatAngst:
** The Hacker is essentially Digit's father since he built him, but Digit seems to have no complex feelings about this at all. The intent might be that what The Hacker has done caused Digit to burn all bridges with him a long time ago.
** In "Fit To Be Heroes", Scanner breaks his video game while stepping up to stop Hacker, and he's pretty darn chill about it. Straight priorities are one thing, but considering how attached to the hip he was to that game throughout most of the episode, one would think he'd be a ''tad'' disappointed at it breaking apart, even with his newfound enthusiasm for physical activity.
* BrokenBase: Starting in Season 9, each episode is no longer dedicated to a mathematical topic, but an environmental problem. The math problems in each episode are simpler and less focused or consistent. Some fans don't like this change, as the math sections were what made the show unique, and Cyberspace seems an unfitting setting to recenter around ecology. Others feel it's not bad, and that the show would have either had to repeat lessons or move up to higher levels of mathematics, alienating the target audience more.
* EvilIsCool: The Hacker is easily one of the most iconic aspects of the show. Being an EvilGenius voiced by Creator/ChristopherLloyd.
* DieForOurShip:
** Shari Spotter gets this treatment from some Matt/Inez shippers, as Shari has had a crush on Matt since her introductory episode.
** Ditto for Ollie from "The Cyberchase Movie." Just like in the example above, Ollie and Inez seem to like each other, and some Matt/Inez shippers resent him for it.
* EnsembleDarkHorse:
** Slider, a young skateboarder and inventor who holds his own relatively well against Hacker while searching for his father. He's presented as a [[LoveInterests romantic option]] for Inez and Jackie, leading to some tension within the [=CyberSquad=]. While Slider is scarcely in over a dozen episodes, all of his early appearances made such an impact that fans view him as a SixthRanger.
** Coop, Slider's DisappearedDad, voiced by Creator/TonyHawk with skateboarding prowess to match. He is memorable for being at the crux of the Transformatron story arc, but he only makes two appearances in the show's present, and is only voiced in "[[Recap/CyberchaseS4E5MeasureForMeasure Measure for Measure]]". Many fans like to speculate that Coop and Hacker's partnership had a romantic side, and that Slider was created as Hacker's son, to heighten the {{angst}} of Hacker's betrayal.
** Creech, the kahuna of Tikiville. She is well-liked for understanding Inez's [[SesquipedalianLoquaciousness idiosyncrasies]]. Compared to Slider, she is less relevant to the overarching plot and appears in substantially fewer episodes, and is still seen as a major character regardless.
** Shari Spotter, a student at Frogsnorts Sorcerer's Academy, another recurring friend of the [=CyberSquad=], and a potential LoveInterest for Matt.
** Several of the minor villains have earned disproportional popularity to their roles in canon. This may be a side effect of the show's meagerness with its cast of main villains. Every episode (until Season 13) includes Hacker, nearly all put the spotlight on him or his henchmen, and most of the remainder feature Wicked, while the gallery of secondary villains stayed just that. The rare new antagonist is bound to stick out and capture the fandom's interest.
*** Ledge, the twist villain of the last two episodes of Season 8. He earned fans' interest by [[NearVillainVictory nearly brainwashing]] the entire [=CyberSquad=] out of nowhere, then [[EvilVersusEvil seeking revenge on Hacker]], forcing a begrudging EnemyMine between the two main factions. Since then, Ledge has only had a silent background appearance, while many viewers still want more exploration of the character and are eager to continue developing him in fanworks.
*** Zusk from Season 12's "Hacker Hugs a Tree" is in a similar boat to Ledge as a third pillar of the conflict. Some fans prefer his design, as he looks less like a misplaced Earth character.
* FirstInstallmentWins: Fans generally consider the first five seasons to be the best. Some narrow it down further to the first four seasons, feeling that Season 5 recycled too many plot concepts and was sloppily animated. Regardless, the interpolated puppet-rigged animation from Season 6 onward has disappointed both camps.
* FriendlyFandoms: There is overlap with other PBS series that target older viewers, including fellow long-runner ''WesternAnimation/{{Arthur}}'' and fellow continuity-driven series ''WesternAnimation/WordGirl''.
* HeartwarmingInHindsight: In the "For Real" segment following "Out of Sync," "When Harry Met Stephanie," Harry gains a crush on his dance teacher Stephanie. Fast forward to 2023, and their real-life actors are married and [[https://www.instagram.com/p/CptrVqKOwKA/?igshid=YmMyMTA2M2Y= expecting a baby]].
* HilariousInHindsight: Prolific fanfic writer Creator/PerkyGoth14 [[https://www.fanfiction.net/s/9477734/1/Uncle-Hacker gave Hacker a niece]] long before an episode of the show did.
* MagnificentBastard ("Hackerized!" & "The Bluebird of Zappiness"): The seemingly friendly Ledge reveals himself as the mastermind behind the outbreak. Devising a machine that transforms its victims into replicas of the Hacker in three minutes, Ledge deceives the Cybersquad into exhausting themselves, [[NearVillainVictory nearly succeeding]] at disposing them. In his next appearance, Ledge decides to [[CardCarryingVillain outdo his former idol as a villain]]. Tricking the Hacker into wearing a clown suit, Ledge snaps a picture at his expense and publishes it worldwide. Upon learning of the Blue Bird of Zappiness, Ledge bugs the Hacker and effortlessly manipulates Buzz & Delete to his side, having backup plans in store if they proved to be problematic. Despite his few appearances, Ledge earns the ire of both the Cybersquad and the Hacker and stands as the most competent and dangerous of the series' antagonists for a reason.
* {{Moe}}:
** Delete. Besides his [[CuteMachines Cute Machine]] design, Delete’s sensitive childlike naïveté, emotional fragility, and love for stereo-typically cute things like bunnies makes him a rare villainous (and even rarer, a ''male'' villainous) example of one.
** Also Digit, who is TheHeart of the Cybersquad in addition to the TeamPet. He can be childlike at times and is also more emotionally sensitive than other characters (with the kids often comforting and reassuring him even if they feel frustrated with one another).
* NightmareFuel: [[NightmareFuel/{{Cyberchase}} Has its own page.]]
* PeripheryDemographic:
** It's an EdutainmentShow about elementary school math concepts. A decent amount of high schoolers and college students have admitted to watching it.
** There was also a formerly-active message board that required members to be over 18.
* RetroactiveRecognition:
** Designer Cal Brunker would later go on to direct ''WesternAnimation/EscapeFromPlanetEarth'', ''WesternAnimation/TheNutJob2NuttyByNature'' and ''WesternAnimation/PAWPatrolTheMovie''.
** Bianca's friend Kelly (Kelly [=McCreary=]) would later be known for playing Dr. Maggie Pierce from Seasons 10-19 of ''Series/GreysAnatomy'', as well as for voicing Dot in ''WesternAnimation/HarveyStreetKids''.
* RomanticPlotTumor: {{Inverted}}. The series sets up various LoveInterests for the Earth kids, and does nothing with them. Matt's resultant jealousy of Slider also only comes up a handful of times before being reconciled. The lack of focus or development, though refreshing, paints these moments as [[TokenRomance shallow]] and pointless. Why bother nudging at these kids' crushes ''at all'' when the narrative impact is negligible?
* SeasonalRot: Most longtime fans consider this to have gradually overtaken the series since the end of Season 5, when Nelvana left the show's production and WNET-13 took over completely.
** Starting with Season 6, [[ArtEvolution the animation was done entirely in]] UsefulNotes/AdobeFlash in lieu of being mostly hand-drawn like before (likely due to WNET's budget constraints), and many viewers see it as a serious downgrade due to the much more lifeless tweened movements and rather OffModel vectorized versions of the characters.
** Because the puppet-rigged models are designed assuming a limited range of "camera" angles and focal lengths, much of the storyboarding feels stiffer. For example, the dramatic close-up shots that accentuated Hacker's monologues were quickly abandoned.
** Season 9, in contravention of the show's entire original purpose, stopped focusing on mathematics, and it alongside subsequent seasons instead elect to focus on other subjects such as environmental problems and [[StockAesops stock edutainment morals]].
** The increasingly basic writing is a letdown, at least for the periphery fanbase. Also, while individual episodes can still technically have high stakes, the show has shied from developing events over multiple episodes. Hacker's more potent schemes are quickly prevented, [[TheyWastedAPerfectlyGoodPlot depriving them of their full potential]].
** The "For Real" segments are not exempt. Harley failed to appear at all and Harry's CharacterDevelopment was completely undone, but also Bianca returned only to share segments with Harry, with her personality drastically toned down. Starting in Season 12, Harry, Bianca, and their recurring friends (Harley, Kelly, etc.) were all dropped completely, with the segments now being hosted by [[CousinOliver much younger children]]. The newer segments are also much more of a lecture than the usual story-driven segments of previous season, leaving little to no character development for the new hosts.
* TheyChangedItNowItSucks:
** After the first five seasons were traditionally animated, the [[ArtEvolution abrupt jump]] to Flash in season 6 put a lot of fans off, who felt it made the animation look cheaper and more stilted.
** The shift from teaching math to teaching ecology and conservation in the ninth season, which some fans felt was incongruous with the show's premise.
* TheyWastedAPerfectlyGoodCharacter:
** The original cast of villains aside from Hacker, his main henchmen, and Wicked. Characters like Warren Plotnik and Ivanka the Invincible never got ADayInTheLimelight. Hacker's other henchmen in "[=EcoHaven=] Ooze", "Chaos as Usual", and "Blowin' in the Wind" arguably have no proper introduction, much less spotlight.
** Funnily, it reached a point where several suspects had to be designed just for the sake of the {{whodunnit}} in "The Case of the Missing Memory". They never appeared since, despite being interesting new villains for the [=CyberSquad=] to face.
** It would have been nice to see more of Digit's efforts to raise Widget and get clarification on their exact relationship. Sadly, the Mini-Didge never reappeared after Season 5. It seems like it would've been economical to make the tweaks to Digit's model and give Creator/GilbertGottfried a few more lines in falsetto.
** Ledge. After getting two episodes in Season 8 showing him to be one of the Cybersquad's most dangerous foe (Hackerizing Sensible Flats, and trying finding the [[MacGuffin Bluebird of Zappiness]], the key to fixing Motherboard’s virus), he could have been a good secondary villain on the show. Unfortunately, after those two episodes, despite saying they'll never see the last of him, he has yet to do anything meaningful in the dozen years since Season 8. Ledge got a non-speaking background appearance four seasons later in "Space Waste Odyssey", leaving fans split on whether the showrunners have any plans for him.
* TheyWastedAPerfectlyGoodPlot:
** Hacker built Digit, Buzz, and Delete[[note]]Buzz and Delete's origins were only confirmed in ''Buzz & Delete Save the Day'', so some fans interpret the matter differently[[/note]], so they are essentially a family unit that Digit had to betray and abandon. [[AngstWhatAngst One would think that would instill some level of angst in Digit]], but it doesn't seem to bother any party involved, aside from Hacker occasionally calling Digit a traitor.
*** This may be justified to some extent by the “How It All Started” webisode chronicling Digit’s origins, which establishes that he was taken to the Frontier by Hacker after the FaceHeelTurn completely against his will, and thus he wouldn’t feel any guilt about betraying those who he didn’t want any association with in the first place. However, [[ContinuitySnarl Digit’s past as Hacker’s henchman is contradictorily played up in other episodes]] as being genuine and long-lasting, so it’s ultimately inconclusive.
** The main plot--the Earthlies being called into Cyberspace and facing off against Hacker to cure Motherboard of the virus--has arguably stalled. More and more episodes open with the heroes sightseeing, camping, or playing with random kids in Cyberspace[[note]]instead of visiting peers or trails on Earth, for whatever reason[[/note]], coming across Hacker's antics by chance, assuming he doesn't [[HarmlessVillain undo his own plan without their interference]].
** In "Plantasaurus!", the [=CyberSquad=] has a sleepover at the newly redecorated Motherboard Control Central, while Hacker plans to attack by bringing the titular, [[ShowWithinAShow in-universe]]-BMovie RentAZilla to life. Unfortunately for the episode's sense of tension, the plan is toothless, as Hacker has no idea how Plantasaurus is supposed to defeat Motherboard. Buzz and Delete then misprogram it to act affectionate, as if to triple down on the ForegoneConclusion. Meanwhile, the [=CyberSquad=] learns about indoor air quality, and [[DancePartyEnding dances with Plantasaurus]] after Hacker virtually defeats himself.
* UnintentionalPeriodPiece: This show was created during the TurnOfTheMillennium, and boy is it apparent sometimes.
** The premise of the show, where three kids are warped into Cyberspace to solve problems in that universe, allowed for a lot more creative freedom in the late '90s and early 2000s when the Internet was a relatively new thing. The show’s depiction of the web feels more dated and unfocused 20 years later. Cyberspace being the Internet incarnate at all, rather than some specific computer or network, is lost on some viewers, having only being mentioned about twice in supplementary material.
** The computers that they have [[TechnologyMarchesOn are the blocky CRT-monitor affair]] that was commonplace when the show launched.
** One PlanetOfHats is the skater-themed [[TotallyRadical Radopolis]], for Christ sakes.
** The kids' original profiles gave them interests that were heavily rooted in 2002, especially regarding their favorite singers. Matt had "anything by Creator/WillSmith", who is far better known for his acting career these days. Jackie had Music/NSync and Music/DestinysChild, both of which would split up and have [[Music/JustinTimberlake their]] [[Music/{{Beyonce}} respective]] faces move on to successful solo careers. Inez had Music/MarcAnthony, who, while still highly successful, has dropped significantly in mainstream popularity since the show's debut.
** "Cool It" had Matt lamenting that there's "No CD player!" in the Cybercoupe, which was probably a funnier line back when [=CDs=] were still the most common way of listening to music.
** The "For Real" segment following "Casablanca" ''screams'' 2001. The segment features Bianca wanting to buy her friend a new CD for her birthday, and goes to a music store to survey customers on what [=CDs=] they just bought as well as their favorite artists. Artists mentioned include Music/AaronCarter, Music/IndiaArie, and Music/AliciaKeys. Specific albums mentioned include Music/{{NSYNC}}'s ''Celebrity'' and the soundtrack for Music/MariahCarey's box office bomb ''Film/{{Glitter}}'' (which Carey herself [[OldShame now refuses to talk about or sing songs from]]). Bianca buys "the new Alicia Keys album" (at the time, her debut album ''Songs in A Minor'', released in June 2001), then has to go back and return it when she learns her friend already owns it.
** There are a few [[ShoutOut pop culture references]] that date certain episodes as well:
*** The first episode has several; Inez namedrops ''Series/XenaWarriorPrincess'', and says that they can [[Series/{{Survivor}} vote her off the island]].
*** Frogsnorts Sorcerer's Academy is a pastiche of ''Franchise/HarryPotter'', complete with {{expies}} [[ParodyNames Shari Spotter and Professor Stumblesnore]]. The franchise was well into its initial peak of popularity at the time. With the main book and film series being long finished, the Frogsnorts episodes can seem dated.
*** Creator/TonyHawk voiced Coop in "[[Recap/CyberchaseS4E5MeasureForMeasure Measure for Measure]]", likely to capitalize on his time in the limelight at that point in the mid-2000s for his skating career.
*** "Borg of the Ring" is a shoutout to ''Franchise/TheLordOfTheRings'' during the run of the [[Film/TheLordOfTheRings Peter Jackson movies]] as well.
* TheWoobie: Delete, with his [[ProneToTears general emotional fragility]] and childlike attitude coupled with his ButtMonkey status, as well as well as his mistreatment by other characters such as when Hacker rejected his bunny themed invention in "The Fairy Borg Father". The show seems to be playing to this and increasingly makes him team up with the [=CyberSquad=], downplaying all he's done under Hacker's employ.
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