- Angst? What Angst?: Her husband ran off, just like her father had years ago, yet Delia doesn't seem to mind. It's mentioned that she no longer loves her husband, but she hasn't divorced him and turns down suitors.
- Darkness-Induced Audience Apathy: Despite being written by Takeshi Shudo (whom many fans agree was the only top creative mind who wanted to do more than plug merchandise with an episodic formula), seeing his Darker and Edgier interpretation of the Pokémon world (in which, for example, Gym Leaders are disqualified for losing three times and as such bribe challengers to lose for large amounts of money) can be rather off-putting for some, even those who enjoy the episodes and movies he wrote.
- Fanfic Fuel: The books are considered an Alternate Continuity by most fans for a couple of reasons (tone, anime info conflicting with the info within, etc.) however it's still used as a source of ideas, especially concerning works that mention Ash's father, the family history of Delia and the Oak family, what Pallet Town is like, Ash's childhood, history of Pallet Town, and the state of the world at large.
- Hilarious in Hindsight: There's a passage where a character, implied to be Professor Oak, waxes poetic about what might happen if various inanimate objects turned out to have Pokemon versions of themselves. Many of these examples now are actual Pokemon. The examples given are fighter jets (Latias and Latios), tanks and pistols (tenuously the Octillery line), swords (the Aegislash line), and dolls (Banette).
- What Do You Mean, It's for Kids?: Has some pretty adult themes for a kid's book, namely children being legal adults at age ten, Teen Pregnancy and adultery, Pikachu dying if using all of it's electricity, to name a few examples. Of course, this is Takeshi Shudō we're talking about, who wanted the anime to be just as much for adults as for kids.
YMMV / Pocket Monsters: The Animation