Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy
Dav Pilkey
Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy
Age Rating, Reading Level & Content Guide
Revenge of the Ridiculous Robo-Boogers
by Dav Pilkey
The text is written at a 4th grade reading level, the subject matter is intended for middle graders (ages 9–12), and the content is mild with minimal sensitive material.
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About This Book
The air buzzes with the whir of robots and the faint smell of melted circuits. George and Harold race through the school halls, their hearts pounding alongside Sulu the bionic hamster’s tiny, speedy footsteps. The battle to save Melvin Sneedly is wild, messy, and full of surprises that will leave you cheering.
Themes
Quick Assessment
This humorous middle-grade fiction follows George, Harold, Captain Underpants, and their bionic hamster, Sulu, as they confront the Robo-Boogers to help their friend Melvin. Suitable for ages 9-12, the story features light fantasy violence and silly, imaginative scenarios that engage young readers. Parents should expect playful humor and themes of friendship and problem-solving.
Why we rated Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy 9LP
Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy is written at a Level 4-5 reading level across 170 pages. Strong independent readers around grade 5.5 can typically handle this book on their own; with parent or teacher support, Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy works for readers up to grade 6.5.
We rate Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy as 9LP ("Light — Physical") because the content sits in the "Mild" range — mild conflict — the kind a child encounters in normal play and sibling life. Across our four dimensions (emotional, physical, social, thematic) the book reads as evenly mild; no single dimension stands out as a concern.
No specific content flags were raised by community reviewers, which is consistent with the mild intensity score.
Thematically, Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy explores humor, adventure, friendship, and school — these threads give the book room to mean different things to different readers.
Good fit for
- ✓ Children in the Ages 9-12 range — the maturity and attention span match the story's pacing.
- ✓ Kids drawn to stories about humor, adventure, friendship.
Maybe not for
- ! Readers looking for something heavier — this is a gentle, low-stakes story by design.
For Parents
Content Intensity
9LP — Light — PhysicalLight conflict or tension. Mild peril resolved quickly.
Was our "Mild" content intensity rating accurate for this book?
Reading Insights
Hook Factor
3/10A steady, thoughtful read that rewards patient readers.
Discussion Potential
1/10A lighter read — great for independent enjoyment.
Book DNA
Multi-dimensional content fingerprint
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Details
Book Length
- ISBN
- 9780606282192
- Pages
- 170
- Publisher
- Turtleback Books Distributed by Demco Media
- Published
- April 2002
- Type
- Fiction