These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Kick Buttowski
Base Breaker: Jackie Wackerman. She's either loved for her "wacky" personality or despised for her creepy obsession with Kick.
The show itself to Disney Animated Television. It is not as big as Phineas and Ferb or even Fish Hooks, but is still beloved by many fans.
Epileptic Trees: Some fans have joked that the whistle Kendall pulled out in "Box Office Blitz" was a rape whistle, because it seems to be the only realistic reason she would be carrying a whistle, other than her being Crazy-Prepared.
Power Play in general - the whole episode had Kick getting beat up for no reason, and with no positive resolve whatsoever to make his character worth rooting for. In fact arguably a lot of Season 2's episodes have been like this. All they're doing is making Kick, as a character, look weak and too pathetic to root for (As for Power Play, it's not the worst episode, but it's easily the worst offender of this trope in Season 2 so far.).
Unfortunate Implications: Played for laughs in-universe when Kick gushes about the "barbarian heritage" of Gunther's family, which leads to Gunther's dad shouting, "Did he just call us barbarians?!"
Brianna's best friends, as seen at her slumber party, are both Acceptable Targets: A fat girl with a deep voice, and a black girl.