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Captain Underpants and the Big, Bad Battle of the Bionic Booger Boy, Part 2: The Revenge of the Ridiculous Robo-Boogers

by Dav Pilkey · Captain Underpants #7

Gross-out comedy meets time-travel adventure in this action-packed Captain Underpants sequel

Kid
72
Parent
44
Teacher
43
Best fit: ages 7-10 Still works: ages 6-12 Lexile 710L

The story

George and Harold are back in trouble as three giant robotic villains threaten the city and the boys must use their wits, a time machine, and the power of underwear to save the day. This is Part 2 of a two-part story that picks up directly where Book 6 left off, following the boys through increasingly absurd situations involving time travel, prehistoric encounters, and creative problem-solving.

Age verdict

Best for ages 7-10. The visual format and constant humor make it accessible to readers as young as 6, but starting with Book 6 is recommended for full context.

Our take

A kid's dream that parents tolerate — pure entertainment engine with sky-high fun factor and creative spark but minimal literary or educational depth

What stands out

Each audience's top 3 dimensions. Out of 30 scored per book.

👦

Kids love

  • Laugh-out-loud Exceptional

    The Scarlet Shedder , sits below — Multiple humor channels (slapstick, visual gags, Flip-O-Rama, comics-within-comics, gross-out escalation) fire simultaneously. Sits at 9: consistent humor but relies on series formula rather than innovation-level reinvention.

  • Mental movie Exceptional

    Tier 3: Comparable to Lunch Lady and the Cyborg Substitute , triangulated with Don't Let the Pigeon Drive the Bus! — Illustrations on every page, Flip-O-Rama, comics-within-comics render visual storytelling as primary reading experience. Sits at Pigeon anchor: visual density and narrative integration match minimalist-yet-complete approach.

👩

Parents love

  • Creative spark Exceptional

    Tier 3: Comparable to InvestiGators: Off the Hook , triangulated with Frog and Toad Together — George-and-Harold as comic creators directly model creative production. Flip-O-Rama invites physical replication. Sits just below InvestiGators at 9: creative spark equally high; loses 1 point for less scaffolded hands-on projects.

  • Reading gateway Strong

    Tier 3: Comparable to 5 Worlds Book 1: The Sand Warrior , triangulated with A Bear Called Paddington — Visual format, short chapters, conversational voice, relentless pacing eliminate reading friction. Sits at Paddington anchor at 8: Part 2 structure slightly reduces gateway score vs graphic-novel format advantage.

🍎

Teachers love

  • Reluctant reader rescue Strong

    Tier 3: Comparable to Lunch Lady and the Cyborg Substitute , sits at Babymouse anchor — Visual, funny, short, non-threatening format rescues reluctant readers. Sits at 7: Part 2 structure requires prior context unlike standalone graphic novels.

  • Writing prompt potential Solid

    three strong prompt categories emerge naturally.

✓ Perfect for

  • Kids aged 7-10 who love gross-out humor
  • visual comedy
  • and non-stop action. Especially effective for reluctant readers who need a high-interest
  • low-barrier entry point to the joy of reading.

Not ideal for

Readers who haven't read Book 6 (Part 1) yet, or families who prefer quieter, more literary stories with substantial vocabulary building.

At a glance

Pages
176
Chapters
31
Words
25k
Lexile
710L
Difficulty
Easy
POV
Third Person Omniscient
Illustration
Heavy
Published
2003
Publisher
Scholastic
ISBN
9780439376129

Mood & style

Tone: Comedic Pacing: Rapid Fire Weight: Light Tension: Physical Danger Humor: Absurdist

You'll know it worked when…

Absolutely — short chapters, constant humor, visual storytelling, and relentless pacing make it nearly impossible to put down. Even reluctant readers will finish this in one or two sittings.

If your kid loved this

Matched across 30 dimensions — interest hooks, character appeal, tone, pacing, emotional core. Not by what other people bought. By what fits the same reader profile.

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