* AccidentalInnuendo: "Omens Part One" sees Lion-O and Tygra act out a longstanding SiblingRivalry by competing in a racing ChaseFight game, the object of which is to climb a tree and ring a bell while fighting off one's competitor. Lion-O announces that he'll ring the bell, whereupon Tygra replies "And I'm gonna ring ''yours''," smiling and tipping a wink. The series' fans, unaware of the phrase's usage in sport (Tygra has threatened to beat Lion-O into a concussion), and remembering that Tygra has previously smiled and winked to [[TheCharmer explicitly flirt]], [[ShippingGoggles seized on]] the exchange's oddly sexual undertone to launch a NotBloodSiblings HoYay ship.
* AlternateAesopInterpretation:
** "Song of the Petalars": "Retreat is cowardice"
** "The Duelist and the Drifter": "Don't depend on the awesomeness of your sword, depend on your [[PowerCopying spontaneously generated]] superpowers."
** "The Forest of Magi Oar": "Greed will almost ''always'' lead to self-destruction."
** "Ramlak Rising": "Don't let obsession drag your friends down with you."
* AlternateCharacterInterpretation: Is the Duelist really a true master swordsman, or is he just a hustler who preys on overconfident amateur swordsmen, using cheap tactics and overwhelming his opponents for a quick win, and not as skilled as his reputation or ego makes him out to be?
* {{Anvilicious}}: "Ramlak Rising"'s "revenge is bad" Aesop.
* AssPull: For some people, the season-end hook-up between [[spoiler:Tygra and Cheetara]] came from ''way out'' of left field.
** For even more people, the revelation that [[spoiler:Pumyra is with Mumm-ra]].
* AuthorsSavingThrow: Don't like the Thundertank's season 2 upgrade? Good news: WordOfGod says it's detachable.
* SugarWiki/AwesomeMusic:
** No one expected the music to be that ''epic''.
** Though things looked grim when "Omens" first premiered and NoThemeTune was evident, "Ramlak Rising" gave viewers a hypercompressed spin on a classic. There's the IconicLogo, the {{Fanfare}}, the EpicRiff, even the ''words'' are "audible." Verdict: [[ThreeChordsAndTheTruth Stripped down]], but still epic.
** While its usage is not exclusive to the ''[=ThunderCats=]'' series, the epic and amazing music used for the trailers and promos, [[http://www.youtube.com/watch?v=V0qY0r35XRM "Protectors of the Earth"]], is '''definitely''' worth a mention here.
** Wilykit's playing during Claudus' funeral. Heart-tugging.
** Or [[spoiler:Emrick the Petalar]]'s funeral.
** Lion-O's theme, which gets broken out any time he does something particularly awesome, is heroic beyond description.
** [[http://www.youtube.com/watch?v=flTtnD4Z9j8 The opening fanfare]]. Granted, it's only ten seconds long, but DAMN if it isn't a kickass ten seconds!
* BaseBreaker:
** Tygra. His [[GreenEyedMonster constant jealously]] of Lion-O, {{Jerkass}} behavior, and being a light KarmaHoudini who gets chosen by Cheetara over the generally more heroic Lion-O has earned him a fair share of haters.
** Lion-O and Cheetara have become this since episode 14, thanks to the LoveTriangle.
** Pumyra. People like her for being a strong, passionate woobie, or they hate her for acting butch and bipolar. [[spoiler:And things got worse after the season finale.]]
* BetterOnDVD: This is rapidly becoming apparent. One complaint against the series is that [[ContinuityLockOut it's very hard to leap in halfway and know what's going on.]] The creators have stated that they tried to plot the show into tightly focused, 13 episode arcs [[GenreSavvy because they know how hard it is to get a second season these days]] and wanted to make sure the audience got a complete story just in case things don't go their way. Some episodes don't really ''end'' as much as they just stop only to pick up right where they left off the next week.
** By WordOfGod the show is broken up into mini-arcs (of roughly seven episodes apiece, give or take) within the overarching season arc. Of particular note, the episodes "The Pit," "Curse of Ratilla," and "Birth of the Blades" were conceived and written as one single narrative.
* BlackAndGrayMorality: Some of the proposed ideas for the cancelled ''[=ThunderCats=] (2011)'' second season included atrocities so heinous they make you wonder [[DarknessInducedAudienceApathy why you'd care about the ThunderCats "heroes" in the first place.]]
* CargoShip: Panthro's only love interest is the Thundertank.
* ClicheStorm: The most common complaint leveled against the premiere, other than ones related to TheyChangedItNowItSucks.
* ComplainingAboutShowsYouDontWatch[=/=]NostalgiaFilter[=/=][[TheyChangedItNowItSucks/WesternAnimation They Changed It Now It Sucks]]:
** Before the first episode aired, people who grew up with the [[WesternAnimation/ThunderCats original '80s show]] denounced the 2011 "[[{{Animesque}} too anime]]" character designs, though the [[http://slices-of-life.com/2011/03/02/thundercats-characters-hoooo-old-and-new/ original designs are both dated]], and themselves {{Animesque}} in their time.
** However the show has received near-unanimous praise on [[http://www.thundercats.ws/ Thundercats.ws]], one of the largest ''[=ThunderCats=]'' fan-boards out there.
** One review did suggest that most of those already denouncing the new show have not seen the original since they were children.
** When a clip revealed that Mumm-Ra has his [[http://www.youtube.com/watch?v=73HlG2Xd2FA own tank]] in episode 6, some people flat out stated the show may be ruined because of it. Talk about jumping the gun.
** The Latin American Spanish dub received lots of flak, due of the fact it was dubbed in Venezuela (due to WB's internal politics about Spanish voice acting in Latin America and also for cost reasons) and not in Mexico like the original one.
* ContinuityLockOut: It ''is'' admittedly, a show that is heavy on plot, light on exposition.
* [[spoiler:CrackPairing: Pumyra...and ''Mumm-Ra''?!]]
* DesignatedVillain: The Duelist. A [[HustlingTheMark hustler]], yes, and happy to challenge others to a DuelToTheDeath. But he did ''win'' those swords.
* DracoInLeatherPants: Pumyra. Despite her poor treatment of Lion-O [[spoiler: including beating Lion-O to a pulp on their first meeting, ridiculing his deepest held values of mercy and kindness, manipulating him into falling into traps that cost him both the Sword of Plun-Darr and the Tech stone, betraying him to Mumm-Ra, trying to kill him again, and otherwise breaking his heart]], many in the fandom believe she is a perfect match for Lion-O and that more screen time should be spent [[spoiler: bringing her character back from the dead, redeeming her, and exploring her anger so that she can potentially be rehabilitated and refashioned as a love interest and ]] connecting her with Lion-O again. On the other hand, [[spoiler:many fans believe that Pumyra is under a form of mind control, a legitimate theory since she was brought back from the dead, meaning it wouldn't technically be her fault. Besides that, the above statement also ignores that Pumyra easily comes around to accept Lion-O's values each time, or at least seems to, depending how much mind control one believes she's under.]]
* {{Ensemble Darkhorse}}s:
** The Thunderkittens are well liked by initial reviewers, and are already popular with fans just from the previews and leaks. One review even called them the {{Breakout Character}}s of the show.
** Holding Panthro back for a few episodes only served to make an already popular character a clear fan-favorite.
** Lynx-O became this as soon as he appeared. One of the most asked questions on ''[[http://crewofomens.tumblr.com/ Crew of Omens]]'' is "When is Lynx-O coming back?"
** Certain characters who haven't even been confirmed to ''exist'' yet in this version are inexplicably popular, like Bengali.
** The hype surrounding the appearance of Pumyra was ''insane'', and within ''hours'' of her design being revealed (in preview clips and concept art released by the production team) fanart and fanfiction started coming in. Not bad for someone who was all but dropped from the original's cast. She's even starting to edge out Cheetara as the fans favorite female.
** The Cats from the flashback in "Legacy," Leo, Panthera, and Tygus, have a strong following and get lots of fan art.
** Dobo is well regarded by many for being cool and surprisingly developed.
* EpicRiff: Still retained in the stripped down TruncatedThemeTune
* EvilIsSexy: [[spoiler: Pumyra, to an amazing degree.]]
* FamilyUnfriendlyAesop: "Song of the Petalars": You might still have a chance of escaping your pursuers and attaining a noble goal when the fate of your people, perhaps even your ''planet'' hangs in the balance? Don't feel like it. We're TiredOfRunning! [=ThunderCats=] [[HonorBeforeReason never retreat]]! Let's make our LastStand for [[GloryHound glory]]! Never mind the cowering eight-year-old refugees!
** Fabulously [[LampshadeHanging lampshaded]] the very next episode by Panthro dryly noting how miraculous it is they've survived this long "without adult supervision."
** "The defeat of your enemy is worth any sacrifice". Granted, we probably aren't meant to completely agree with this, but Panthro does subscribe to this line of thinking when [[spoiler:he sacrifices both his arms to trap Grune in the astral plane.]]
* FauxSymbolism: Tygra's backstory has distinctly biblical elements. [[spoiler: His father was ordered to sacrifice him by a higher power, but didn't go through with it (Abraham and Isaac) and he was sent away for his own safety to be found and raised by the royal family (Moses)]].
* HarsherInHindsight: After Tygra/Cheetara became [[OfficialCouple official]] in episode 13, a lot of angry fans bashed Cheetara [[spoiler: and eagerly awaited Pumrya to appear on the show because she deserved him more. Whoops.]]
** After the reveal in the series finale, Pumyra's lines take on a disturbing tone. In The Pit, Pumyra's declaration, "I cannot kill my king," comes off more like an order than an expression of loyalty. It would seem that any "mind control" she was under might have been suppressing her anger, and forcing her to be nice, rather than the other way around.
* HilariousInHindsight:
** Early in the second season of the [[WesternAnimation/ThunderCats original '80s show]], Lynx-O tells Lion-O that his voice sounds just like his father's. In the 2011 remake, Larry Kenny, Lion-O's original VA, will be the VA for Lion-O's father, Claudus.
** A kingdom of cats with one black maned cat leading a rebellion against the king with the oppressed minorities? [[Disney/TheLionKing Why does that sound familiar?]]
* HoYay:
** Yup. Already. Of the SiblingIncest variety, no less. AccidentalInnuendo or IncestSubtext?
---> '''Lion-O''': "I'm going to ring that bell."
---> '''Tygra''': "And I'm going to ring yours." *wink*
** The cell they're locked into has [[ThereIsOnlyOneBed Only One Bed.]]
*** It only gets better in the LovePotion episode...
** Claudus and Grune. They certainly seemed ''close''.
** Likewise Claudus rushing to Panthro's [[RoaringRampageOfRescue rescue]].
** The flashbacks when Panthro and Grune meet are full of this, starting with Panthro's: "Grune, we've been [[HeterosexualLifePartners inseparable]] ever since that first day we met on the battlefield"
** And then there's Panthro and Dobo.
* InformedWrongness: Lion-O gets hit with this a lot. Even his good decisions land him in the doghouse.
* IronWoobie: Lion-O, considering all that he goes through.
* ItWasHisSled:
** [[spoiler: The cleric Jaga]]'s seeming death during "Omens Part Two" comes as no surprise to anyone who's seen the original as he spent most of his time there [[spoiler:as a ghostly apparition]] after dying at the start of the series.
** And now subverted in "Ramlak Rising".
** And played straight in "Journey to the Tower of Omens" [[spoiler:as he sacrifices himself for real to protect Lion-O from Mumm-Ra and get the Book of Omens.]]
** Same thing to Claudus's death. Arguably subverted with Grune, who survives the first two episodes.
* JerkassWoobie: Tygra jumps between this and TheWoobie quite often.
** [[spoiler: Also Pumyra, despite her betrayal at the end.]]
* MagnificentBastard:
** Mumm-Ra.
** Rataro. Elegant. Sophisticated. Tyrannical. Rataro has his own agenda for domination and couldn't care less about Mumm-Ra.
* MemeticMolester:
** Tygra will [[AccidentalInnuendo ring your bell]], whether you want him to or not.
** More like MemeticSexGod. [[EvenTheGuysWantHim You know you want him to.]]
* MemeticMutation:
** Tygra's [[spoiler:girlfriend-stealing powers]] are quickly becoming his most remarked-upon trait.
** Quickly! To the Mumm-Ramobile!
** Nothing that happens to Panthro matters because he's dead.
** "Whiskers!"
* MemeticSexGoddess: Cheetara and Pumyra.
* {{Moe}}:
** The Thunderkittens.
** Also, Emrick. [[ImTakingHerHomeWithMe Awww!]]
** Young Cheetara too.
* MoralEventHorizon: For Mumm-Ra. Stabbing King Claudus in the back? Subjecting wise old Jaga to a FateWorseThanDeath? Hiring psychos like [[AxCrazy Kaynar]] and [[ImAHumanitarian Addicus]]? Bringing about the downfall of Thundera and enslaving its people? Trying to TakeOverTheWorld? [[spoiler: Oh, no... it's when, in the past, he destroyed a ''populated solar system'' to forge the Sword of Plun-Darr that he established himself as a monstrous being. Leo even tried talking him out of it and pointed out that he could destroy an unpopulated solar system, but [[BecauseDestinySaysSo refused to deviate from the plan the Ancient Spirits of Evil set for him]].]]
* {{Narm}}[=/=]NarmCharm:
** The ReallyDeadMontage for [[spoiler:Emrick the Petalar]] varies in effectiveness depending on the viewer's contextual tolerance for ViewersAreGoldfish.
** Most of the dialogue in "Into the Astral Plane" and "Between Brothers" comes off as [[DullSurprise detatched]], stock dialogue
* NightmareFuel:
** The amount and speed that Thundera is destroyed by the Lizards' military power. Lion-O lampshades this, saying his dream has become his nightmare.
** Mumm-Ra's, well, everything. Special mention to his pointed teeth.
** Mumm-Ra's [[spoiler: torture and imprisonment of Jaga.]] Not something you'd want to experience judging by his reactions.
** Panthro [[spoiler:[[HandicappedBadass losing his arms]] [[RevengeBeforeReason to push Grune into the Astral plane]]]] can be a little disturbing if you're not prepared for it. Then again, [[MajorInjuryUnderreaction Panthro plays it off very well.]]
** Kaynar and Addicus. Thinking back to Jackalman and Monkian (respectively) in the 80's version, they were bumbling fools and not the least bit threatening. On the other hand Kaynar and Addicus are physically imposing and competent fighters, but as if that was not enough, Kaynar is a [[AxCrazy giggling, sadistic, psychotic serial killer]], and Addicus is not only a killer himself, he also [[ImAHumanitarian enjoys preying on other sentients]].
*** Addicus's introduction should get special mention. He's seen hanging by a rope from a cliff as a tribe of birds have sentenced him for death, for unknown (though pretty easily guessed) reasons. He is offered a last meal, but when he says, essentially, that he wants to ''eat'' the birds, it's skipped, the rope is cut, and he's sent plummeting to his doom...until Slithe's flying ship hovers up to the cliff, Addicus standing unrestrained on board. Addicus says "I believe I am owed a last meal..."...at which point we get a far shot of the bird village and are treated to the sound of many birds [[GoryDiscretionShot screaming in agony]].
** Lion-O's surprisingly graphic [[spoiler: death by drowning in "The Trials Of Lion-O."]]
** The Tiger Clan [[spoiler:being killed and cursed with undeath by the Ancient Spirits of Evil. Lion-O and Tygra spent most of the episode in a literal ghost town.]]
** The [[WildTake faces]] that the man with the "nervous disposition" makes in "Recipe for Disaster" if only because [[BigLippedAlligatorMoment they come out of nowhere.]]
** In "Soul Sever", [[spoiler:Tygra gets his soul torn out]] and the result is a soul devouring robotic horror. Foreshadowed by Tygra who comments that the scenario was "...The stuff of nightmares."
* OlderThanTheyThink: Some younger fans were shocked that Tygra and Cheetara ended up becoming the OfficialCouple instead of Lion-O and Cheetara. Tygra and Cheetara were canon back in the original 1985 series, so for older viewers, the pairing ended up being par course.
** Well, actually the original 80s version kind of went back and forth between whether or not she liked Tygra or Lion-O. Some early episodes and later on seemed to favor her with Tygra while later episodes favored Lion-O.
*** It still counts if one remembers the Wildstorm comics, which had Cheetara and Tygra having children very late in the series (though most fans consider these comics non-canon).
* OneSceneWonder: Lynx-O has a small cameo in "Omens Part Two". Fans are already placing bets on when he returns (possibly with Bengali and Pumyra in tow)
* TheProblemWithLicensedGames: The series does have a game for the NintendoDS. Unfortunately, due to the finicky platforming and controls, the lack of checkpoints, the absence of any voice acting, and [[ArsonMurderAndJaywalking the fact that it was released when the]] Nintendo3DS [[ArsonMurderAndJaywalking was already released]], it's clear [[TheyJustDidntCare that Namco Bandai just didn't care.]]
* RescuedFromTheScrappyHeap:
** Snarf. Being a less-sentient non-speaking creature means that he's not a nagging whiner this time around. Fan response has been much more positive. Also [=WilyKit=] and [=WilyKat=], for those who found them annoying in the original.
** Although there are the few fans who ''enjoyed'' Snarf's voice in the original, and are actually ''upset'' he doesn't talk.
* RonTheDeathEater: Tygra. Shown as JerkWithAHeartOfGold who is both a rival to and a loyal supporter of his brother Lion-O in canon. In fanon, considered by some to be a villain more evil than Mumm-Ra, ostensibly because of his treatment of Lion-O, but chiefly because of [[DieforOurShip shipping preferences.]]
* ShipToShipCombat: Like with all fandoms, but in this case it was a three way battle: [[BodyguardCrush Lion-O/Cheetara]] vs. [[ChildhoodFriendRomance Tygra/Cheetara]] vs. [[HoYay Lion-O/Tygra.]] [[spoiler: Tygra/Cheetara wins.]]
* ShippingGoggles: The peculiar IncestSubtext-laden AccidentalInnuendo of "Omens Part One" gave rise to Lion-O/Tygra NotBloodSiblings HoYayShipping.
* SugarWiki/SoCoolItsAwesome: The premiere has been getting phenomenally good reception from both fans and those new to ''WesternAnimation/ThunderCats''. Studio4C's reputation from projects like ''BatmanGothamKnight'' and ''Anime/TheAnimatrix'', high quantities of {{Badass}} and {{Moe}}, and a lot of HeyItsThatGuy are probably all factors bringing the new fans in.
* SomeAnvilsNeedToBeDropped: The theme of seeing the big picture and having a wider perspective. A lot of the conflict in the series ultimately stems from people being too narrow sighted to see the consequences of their actions in the long run. It ties into the themes of kindness and mercy being the cure to hatred exploited by evil. Also, never compromising your morals in spite of what's normal or what's logical in the short term.
* {{Squick}}: [[spoiler: Pumyra [[IKissYourHand kisses Mumm-Ra's hand]] (okay, gauntlet, but close enough) when she reveals her allegiance to him, and he, the guy who brought her back to life just to serve as his puppet, calls her "beloved."]] Ewwwww!
* StoicWoobie: Panthro.
* StrawmanHasAPoint: While it doesn't really justify [[spoiler:siding with Mumm-Ra]], Pumyra ''does'' have legitimate grievances with Lion-O. He ''did'' abandon his people in their time of need, and he ''did'' try to force integration between his people and their mortal enemies, the Lizards.
* TooGoodToLast
* UnfortunateImplications:
** Think of that Berbil arm seen briefly in "Omens Part One"...
* VillainDecay: The Lizards have certainly taken a big hit from "overwhelmingly terrifying badasses" to "typical {{redshirt}} fodder." Unusually, losing their motivating racial pathos (whatever happened to the MercifulMinion?) is a contributing factor.
** Lampshaded in the season 2 opener, where Slithe tells Mumm-Ra that his minions are under strict (and correct) impressions that he thinks of them as expendable drones.
* {{Wangst}}: Tygra and Lion-O's angst over their competition for Cheetara's attention revolves around their need for her to confirm that she's "chosen" one of them without directly telling her ''their'' feelings, (and risking her explicit rejection), their SiblingRivalry and mutual jealousy of one another, and Cheetara herself not being clear on where her affections lie. Passive-aggressive teenagers!
* WhatAnIdiot: the guy who had just bumped into somebody carelessly thinks he should scream "robbers" when two kids in rags reveal themselves trying to give back his bag of money.
** [[spoiler:Okay Pumyra, go ahead and [[TheQuisling sell out your entire race]] just to get petty revenge on Lion-O if you like, but blowing your own cover just to give Mumm-Ra one power stone is beyond stupid when you could have poisoned the cats in their sleep and taken all three stones any time you wanted.]]
*** [[spoiler:On the other hand, Pumyra was probably only ordered to tag along until the last stone was found. Also, her outbursts of anger were making it really hard to mesh well with the others (Cheetara even called her out on it at one point). Mumm-Ra probably figured that now that he knows where all the stones are it's safe for her to reveal herself. Also, at that point they thought the fight was easily theirs.]]
** Only one problem with that, [[spoiler:there's one more stone out there to find.]]
* WhatMeasureIsANonBadass: The series more or less [[DeconstructedTrope deconstructs]] this, especially in regards to Lion-O. Many of his own people show disdain towards his values of kindess and mercy towards his enemies, but their warrior culture attitudes are what ultimately led to their home being destroyed in the first place. Lion-O tries to be the badass king everyone wants, like Tygra, but over time he learns that this is not the right path for victory, and learns to rely more on his cunning, his leadership, and his mercy. Ironically, many fans miss this point, and dislike Lion-O for not being the best fighter. That said, Lion-O does indeed become a much better warrior by the season's end.
* TheWoobie:
** Lion-O, let's recap. So far Lion-O has lost his father, his mentor, his surrogate father [[spoiler:Captain Tunar]]. Also, his surrogate little brother [[spoiler:Emrick the Petalar.]] The latest being that he [[spoiler: DidNotGetTheGirl,]] and to top it all off [[spoiler: now he's ''dead!'']] MAN! the poor guy might as well be wearing "Kick Me" on his back or something!
*** Now it's gotten worse for him because [[spoiler:Pumyra is actually working for Mumm-Ra.]]
*** IronWoobie: Yet despite that he keeps going.
** Tygra too - his birth mother presumably dies, his birth father [[spoiler: sends him away from home to protect him]], his adopted mother [[spoiler: dies in childbirth]], and then his adopted father dies. He grows up knowing he will lose his kingdom to his little brother and feeling like he doesn't belong, and when he finally finds his real home, [[spoiler: everyone in it dies, including his birth father, leaving him the last tiger.]] In his own words: "Tell me, Lion-O, is it my destiny to lose everything I care most about?"
*** Lion-O assures him that Tygra won't lose him at least. Nevermind that in the previous episode [[spoiler:Tygra nearly ''did'' lose Lion-O.]]
** The thunder kittens Wily-Kit and Wily-Kat considering that [[spoiler: they watched their father die saving them and their mother from a tornado]] and also the fact that the reason they left home was [[spoiler: to find a way to provide for their mother and their younger siblings to have resources to live on.]] Keep in mind that they're ''children'' that have to endure these burdens as well.
** Pumyra, who wasn't always a fighter. She was sold into slavery after the fall of Thundera first in a mine and later as a gladiator under Dobo in The Pit. When she chews Lion-O out over everything that's happened and how she holds him responsible for her and the other refugees suffering she almost breaks down in tears (and in the next episode we get to see firsthand the hell she lived in). There's been plenty of ManlyTears in the show, but seeing a strong, independent woman break down like that is a first.
** StoicWoobie: That poor Swordmaker, so very heartwrenching to see his dreams so mercilessly crushed. [[spoiler:That awful purple man made the ''cute bunny'' sad!]]