Dragon Booster/YMMV

Broken Aesop: In the episode The Mouth that Roared, a blatant The Boy Who Cried Wolf story. Except the boy in question is Lance Penn, who aside from occasionally being immature, is probably one of the most moral characters in the whole series and has never shown a habit of lying. And he never lies in the episode either, he's telling people about a black-market gear dealer who in fact does exist--it's just that the guy is good at hiding and never shows up when Lance brings people to see (he's even smart enough to call the police the second he finds out!). So, in one episode we get Police Are Useless and People Over Ten Are Useless.
- How useless are they? Instead of scoping the area thoroughly for evidence, they just hunker down wherever Lance was hanging out and wait a few minutes. If the guy doesn't show up, the kid must have been lying! despite the fact that one of the racers is using gear that must have come off the black market and this kid says he saw a black market guy, he must be lying!
- Though the first big one of the series was in Pride of the Hero. It starts with Artha's ego yet again getting over-inflated. Then we see Fan-Favorite Anti-Villain Moordryd suddenly stopping Wraith Dragons after what looked like a fight with his Big Bad father. While we admit it seems a bit abrupt for a Heel Face Turn, at least Artha's getting called out for the fact that the main reason he doesn't trust Moordryd is because he's jealous. In order to make a point, and possibly because he sense the good in him, Beau then lets Moordryd get on his back, shocking Artha into admitting that maybe there is good in Moordryd...only for Moordryd to whip out an Artifact of Doom and spill his whole evil plan.
  - The Aesop gets slightly repaired when Artha gets through to Moordryd, with Artha admitting he was wrong and there is a hero inside Moordryd. The episode ends with Artha telling Moordryd "the dragon chose you too", hinting Moordryd may have a good side... that we don't see much of for another 8 episodes. What.
Marty Stu: Lots of people accuse Artha of being one of those in the first season. But after episode 13, Artha STARTS to develop a personality.
- And even more of an ego. And since only a few episodes (a Wham! Episode, usually) had an effect on continuity, it was never truly dealt with. Pride of the Hero and its implications went ignored by the writers (but not the fans), Artha the Drac had no impact overall outside of introducing Vociferous as a One-Episode-Wonder, and everything not explicitly related to him tended to go by the wayside, despite having a personality.
Tear Jerker: Moordryd in Pride of a Hero reacts very, very strongly to his father saying "I'm impressed...I'm even...proud" to the point of snapping out of insanity. The sheer shock in his voice when he asked word for confirmation, and then his attempt to stop his own plan just from hearing those words...not only did it solidify that he's a serious "Well Done, Son" Guy, but it made you wonder if Word's ever seemed proud of him.
- Moordryd again in Wraith Booster wandering the streets full of frozen citizens and then finding Lance, who wouldn't have been frozen if Moordryd hadn't flipped out on the kid and left him behind. Then It Got Worse when Moordryd goes to get his crew-mates to stop his father, only to find them, including his best friend, frozen too.
- In the first episode, when Artha and Lance can't find their father and realize he must have died in the explosion of course, he didn't, but they didn't know that for two seasons while he went Stealth Mentor on them.
Villain Sue: Word never really got any serious come-uppance, and he never displayed too much Magnificent Bastard, just barely not being proved guilty or just never being considered (Moordryd and the Dragon Eyes being the one with the bad PR).
- Until Moordryd became the Shadow Booster, and started breaking away from him, that is. Word actually got an Enemy Mine with his son (that he did not recognize), Mortis, and the Dragon Booster in the finale.