The Space Bikers run a school in their home planet. They do everything to benefit their society. On weekends, they take their stress out on Earth.
Also in regards to the events of "Ball and Chain", where the Space Bikers say that men on their planet are slaves/pets to the women and if a man wants to end the marriage, she eats him, however in "Voyage to the planet of the Bikers", we see that they live in a very peaceful, friendly world and the men don't seem to serve woman as the way they describe. Is it possible that that they lied about this just for kicks and because Tammy wanted to to still bully Brad, and the whole eating thing was another lie and Disproportionate Retribution on their part?.
Sheldon expresses a near-obsessive infatuation for Jenny, but he was quick to fall for Vexus when she swindled him (and even tried to share a romantic dance with a toaster when Jenny wasn't dancing with him at a party). Does Sheldon really love Jenny, or are his feelings solely based on both desperation and robot fetishism?
In "Teenage Mutant Ninja Troubles", Misty claims that the Teen Team has disbanded due to Orion wanting to join ballet, but given how selfish and callous she acts in this episode and her subsequent and final appearance in "Mist Opportunities", it's conceivable that she lied about the Teen Team disbanding and was either kicked out for refusing to help people without getting paid and not caring about avoiding civilian casualties or even killed her teammates Orion and Squish when they tried to confront her on her not-so-heroic attitude.
Although, as shown in their debut, Orion and Squish aren't all that better than her, given their cold attitude to "regulars" and how they ignored the giant frog attack (which Misty actually bothered to help Jenny with). It really is possible that they really did disband but for different reasons.
Applicability: "Victim of Fashion" has Jenny competing against Brit and Tiff to see who can be more fashionable. But when it comes to getting slim, being a robot her only option is having her armor and weapons removed leaving her body as just a robot skeleton. She's so weak that even the smallest member of the biker chicks gang kicks her butt easily. Of course this could be seen as An Aesop about function over fashion which can easily apply to technology, but the way Jenny gets slimmer can also read as a metaphor for anorexia.
Sheldon. Beyond being the cause of the majority of the fandom's shipping arguments (Jenny/Brad vs Jenny/Sheldon), there are those who see him as a shallow creep and those who think he's an absolute sweetheart, especially with him being the only one who actually believes Jenny was innocent in the Christmas episode.
Tuck. Some think he's a hilarious comic relief character with genuine moments of kindness and craftiness ("Future Shock", "Victim of Fashion") while others find him an annoying pest who makes everything worse ("The Boy Who Cried Wolf", "Speak No Evil"), his young age notwithstanding.
Some hate The Crust Cousins for being so darn cruel to Jenny but with that being said, there are people who love them and/or just their wardrobe.
Misty is another polarizing character. Some fans like her for having cool powers and an interesting character design, while others are put off by her sudden mean-spiritedattitude in "Teenage Mutant Ninja Troubles" and "Mist Opportunities".
Designated Hero: It's not uncommon for Sheldon's detractors to accuse him of being one. Despite being treated as a plucky underdog who is trying his hardest to win Jenny's affection, he actually displays a lot of negative characteristics that he's never called out for. Such as how he purposefully tried to ruin two of Jenny's dates out of jealousy or how he broke into her house to steal her blueprints to figure out how to make her fall in love with him.
Ear Worm: "Oh, Happy Noontime Funtime Song! We love to sing it all day long..."
"This is the song that goes on forever 'cause it doesn't ever end, and we will finish singing it never 'cause here we go again"
The Scrappy: If there are any characters on the show who act mean toward Jenny, then they're likely to be despised by the fandom. The most notable examples are Vice Principal Razinski for giving Jenny a hard time just for being a robot and Don Prima for being a self-centered bully.
Ugly Cute: Sheldon looks like your standard geek but he's a very kind admirer.
Unintentionally Unsympathetic: Misty comes off as this during her final appearances in "Teenage Mutant Ninja Troubles" and "Mist Opportunities". The latter episode is especially glaring because she gives the excuse that she has to charge money for her heroics because she's too dirt-poor to live a decent life, but her argument is undercut because she shows a severe Lack of Empathy by not caring about getting people hurt when she's fighting crime and callously refusing to rescue people if she won't get paid for it.
However, this might be an Invoked Trope, although more intentionally if anything, as Jenny does call her out on it.