* CrowningMusicOfAwesome: The third OP, [[http://www.youtube.com/watch?v=jX4ZwBlQy0s Tattoo Kiss]].
* DieForOurShip: May Wong is ''really'' hated by some Leon/Sora shippers. [[DoubleStandard Ken Robbins is not]], despite all the LesYay subtext.
* DoubleStandard: According to fandom May is a whore, a bitch, a self centered JerkAss and should be shot to death... but Leon can get away with lots of shit and arrogant stunts and ''he's just misunderstoooooooood''. Specially bad when you recall [[spoiler: that Leon was the one who injured May and could have potentially ''killed'' her.]]
* DracoInLeatherPants: Holy SHIT, Leon. While he ''does'' have somewhat understandable reasons to be the way he is, these do NOT justify how his fangirls hanwave or ommit the crap he has pulled on Sora, May and on many others [[spoiler: like the innocent partners that he injured just to test their worth]].
* FamilyUnfriendlyAesop: Some of the training techniques and behaviors seen in both the Kaleido Stage and the International Circus Festival are ''not'' exactly ethical.
* JerkassWoobie: Leon and May. Leon has a ''terrible'' DarkAndTroubledPast, and May is much more insecure than she lets on... but that doesn't justify their bad behavior.
* JerkSue: In the same way Sora deconstructs PuritySue, May Wong deconstructs this trope. She ''does'' have traits of it, but she then [[BreakTheHaughty suffers the consequences for it]].
** Leon Oswald, back when he was a jerk, might play the trope straight, though. [[spoiler: Though, unlike other {{Jerk Sue}}s, he ''does'' come around in the end.]]
* LauncherOfAThousandShips: Sora gets ShipTease with Ken. And Leon. And Layla. And Rosetta. And maybe even May.
* LesYay: There's a quite sizable chunk of subtext between several girls of the cast. Sora and Layla, Sora and Rosetta (which crosses the line to RomanticTwoGirlFriendship in the second season), Sora and May (more of FoeYay for a time, though), May and Rosetta, Anna and Mia, Mia and Katie, Katie and Layla...
** Arguably, Cathy with Layla and Mia. So much that Sora even gets a little jealous of her closeness to Layla at some point!
** May's hero worship of Layla counts as well.
* MagnificentBastard: Leon, until he's defrosted by Sora and Yuri. Surprisingly, he's ''not'' hit with BadassDecay.
* MisaimedFandom: Some fans are so protective of Sora that they peg Kalos, Leon and ''[[DoubleStandard especially]]'' May as evil. Often while whining about how Sora should be spoonfed and showered with love and praise - which is funny because, had Sora gotten approval and love easier, the fandom would've doubtlessly whined about her being a boring and perfect MarySueClassic.
* {{Moe}}: Sora, Marion and Rosetta.
* PuritySue: Sora Naegino is a ''deconstruction'' of this trope. She has traits that would make her the UrExample... and yet they work ''against'' her. She has to balance her extreme idealism with her experiences in the circus world to keep believing in herself and the rest of the world and not go the KnightInSourArmor route [[spoiler: like it happened to Leon and Yuri.]]
** [[spoiler: Sophie Oswald]] is a more by-the-book version, but it's a JustifiedTrope: [[spoiler: Being [[CynicismCatalyst a dead little sister]], [[ToogoodForThisSinfulEarth she didn't last long enough to see the worst parts of the world]], ''and'' Leon would've been OOC if he didn't idealize her due to the ''terrible'' circumstances surrounding her death.]]
* RonTheDeathEater: May and Kalos.
* TheScrappy: No matter how much she was redeemed, May is ''still'' bashed and gets her share of CharacterDevelopment ignored or handwaved by FanDumb.
* {{Wangst}}: Sora's problems in the second season are very valid, but sometimes her angst ''does'' get extremely grating. Lampshaded by Fool, who tells her that [[spoiler: if she doesn't come around, she'll lose her chance to be the Kaleido Star, and as such she'll stop seeing him. And it happens for a while.]]