Creator's Pet: Some fans thought that Hygenia was a lame superheroine that should not have gotten as far as she did in her season, but Stan Lee seemed to like her.
Ear Worm: The Fat Momma theme song. She even gets a crowd singing it.
"Fat Momma, Fat Momma, I'm here to save the day. Fat Momma, Fat Momma, I'll take your food away."
Elimination Houdini: Hygena. In the second-to-last episode, she revealed her home address to the TV personality and still made it to the finals out of sheer luck because Stan decided that nobody would be eliminated in the second-to-last episode, and that the finale would have three contestants instead of two.
The above-mentioned Fat Momma in-show. In one of the final episodes, the remaining three contestants had to convince an elementary school class to be inspired by their hero persona, and then the kids of the class had to stand behind their favorite. Fat Momma gave a heartwarming speech about learning to love yourself for who you are, and more than half the class got behind her.
Game-Breaker: A late challenge in the second season involved bonding with children and using the knowledge they were taught in school to solve some puzzles. The guy who failed? Parthenon, who was a teacher, and therefore didn't need the children's help.
Narm: Parthenon's catchphrase, "Who says diamonds are a girl's best friend?", is probably the most unsuperheroic and unimpressive Non Sequitur of a catchphrase that has ever been devised.
Shocking Elimination: Creature who was eliminated for jaywalking, therefore breaking the law, during a challenge. Her justification (she didn't grow up around traffic lights and only learned to look both ways before crossing a street) didn't help, considering she also mentioned that superheroes have broken much worse laws.
Wangst: Fat Momma in Season 1, and Whip-Snap in Season 2, both teeter on the edge between angst and wangst, especially Whip-Snap.
Whip-Snap's wangsting got her eliminated - Stan Lee's final speech to her basically said, "If you can't deal with your own problems, you have no business being a superhero on top of it." He ought to have made the obvious comparison to Spider-Man, noting that (at least when written well), Peter Parker actually works to solve the problems amidst his superhero life, rather than crying about it every damn time (at least when he's not selling his soul to Satan to fix the problem for him).
Monkey Woman in Season 1 also had this problem: she was on the verge of tears every time something didn't go right for her.
They Wasted a Perfectly Good Character: Feedback's very detailed backstory and super powers did not transition into the comic book, which instead had them struck by lightning and subsequently using fairly generic electricity powers. It's been suggested that their original power of borrowing abilities from video games would have been a legal nightmare, which falls rather flat when there's no reason they couldn't have made up the games.
The Web Comic:
Hilarious in Hindsight: Vegeta and Piccolo statements that Gotenks cannot be defeated by them due to his status as a fusion becomes hilarious in Dragon Ball Super, where in one of the filler arcs Gotenks fights off against a copy of Vegeta in his base form, and does nothing to him.