* 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.
* 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.
* 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 boring and perfect.
* {{Moe}}: Sora, Marion and Rosetta.
* RonTheDeathEater: May and Kalos.
* TheScrappy: May is bashed.
* {{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.]]