Adaptation Displacement: Viewers more familiar with the Disney versions of the stories might think Pinocchio's friend Meru is an Original Character, when she's actually the Blue Fairy, who was much more prominent in the original book, and may be surprised at The Little Mermaid's tragic original ending which serves as a major plot point for the episode.
Adorkable: Most of the time, Pochiro's a badass comedian but there are times where he shows a cuter, much more laid back and comedic side to his personality. Just look at him while he's dressed in his baker, pilgrim and punk rocker outfits from the Hansel And Gretel, Bluebird Of Happiness and Bremen Town Musicians episodes, respectively. He's extremely adorable.
When Bakumaru gets his hands on a Brand XGame Boy, he gets dizzy after the graphics jump out at him. Nintendo later made the Virtual Boy and Nintendo 3DS, which featured 3D graphics that jumped out at you.
Two episodes are about Moby Dick and Frankenstein. About 9 years later, The Fairly OddParents! had a half-hour special called "Shelf Life" with the same premise as the series involving the same exact books.
A cat fairy causing trouble for being embarrassed by an event? Are we talking Chocolat or Siren?
The messed-up version of Snow White involves the seven dwarves turning tall, buff and shirtless. Mirror, Mirror would make a Running Gag about Prince Charming (Armie Hammer) being buff and shirtless after being attacked by the same dwarves.
Iron Woobie: The Eto Rangers become this at the climax of the series after watching their friends die.
Monk is another example, as he frequently engages in pranks that upset people, but he also gets plenty of moments where he's on the receiving end of humiliation and in the Grand Finale, Monk goes berserk when Pochiro sacrifices himself to save Monk.
Chocolat, as her rampage is her attempt to get revenge against Princess Aura, who she thought had promised her a victory in the Etoranger qualification race if she started early, then disqualified her for seemingly no reason. Learning Bagi was behind it all adds to this.
Pochiro often picks on Monk and one time deliberately kicked a soccer ball at Tart but he's just so cute that you can't hate him. Watching him die to protect Monk is downright heartbreaking.
Bakumaru himself is a loudmouth Bratty Half-Pint but he's practically beaten half to death by Geton in the Mouse's wedding episode. Plus, he also was a vicious speciest in the Puss In Boots episode but you still have to feel some sympathy for him on account on his PTSD-ish reactions to cats. By the climax of the series, Bakumaru has experienced so much loss that you just want to hug the poor brat.
Memetic Loser: Nyorori. He tries so hard to be this badass and suaveGadgeteer Genius, but his creations are only ever shown falling apart, he hardly does anything useful throughout the entire series, and his character design is utterly adorable.
Souffle the Lamb is the girliest and cutesiest member of the team. Her A Day in the Limelight episode firmly cements how lovable she is.
Pochiro. Whenever he shows his goofier, lighthearted, more comedic side, you can expect extreme levels of adorkable-ness that would give even Nyorori a run for his money. It's especially evident if Pochiro isn't wearing his usual outfit.
Urii, who's an adorable little piglet and the Tagalong Kid of the rangers.
Moral Event Horizon: Nyanma crossed it immediately after her initial transformation, when she invoked Deadline News and shot Lydia just because he was there.
Never Live It Down: Hols and his Wholesome Crossdresser moment, brought on by a misfired spell from Corrupted Snow White. It only lasted for a few seconds and isn't brought up again, but it's brought up among the fandom a lot.
Unpopular Popular Character: While Tart's humanoid form has plenty of fans, she was by no means ugly in her original form like she was led to believe by the team, and most fans still prefer and depict her as a chicken.
Jyuken starts out being portrayed like the rest of the Jyarei, but is slowly revealed to be treated like dirt by the others, to the point where even during her most successful and dangerous act, she's only considered a decoy. This culminates when her character arc ends in a Shoot the Shaggy Dog, not only never getting a real chance at redemption but also making Nyanma even more powerful.
The corrupted wolf in the Little Red Riding Hood episode is so pathetic and terrified of being eaten that he could really use a hug.