Beginner
≈ 1 h 15 minSuggested range45 min – 2 h
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Technic · SET 42200
Monster Jam ThunderROARus Pull-Back
ThunderROARus puts a dinosaur-like body on a Technic chassis with oversized tyres.
- Pieces
- 232
- Release year
- 2025
- Theme
- Technic
- Set number
- 42200
- LEGO recommended age
- 7+
- LEGO retail price · Italy
- 27.99 €
Retail price reported by the LEGO source for the stated market. Check the store for current price and availability; this does not establish the launch price. LEGO ↗ · Reference checked on 26 October 2026
Official English name verified at: LEGO English catalogue ↗ · Checked on 26 October 2026.
TIME TO BUILD
How long does it take to build Monster Jam ThunderROARus Pull-Back?
A starting point for planning your build. Times for each experience level are editorial estimates, not measurements submitted by HowLongToBuild users.
Editorial estimate · first build
Intermediate
≈ 50 minSuggested range30 min – 1 h 20 minExperienced
≈ 35 minSuggested range21 min – 56 minBased on one person building the set for the first time, following the original instructions and using numbered bags where supplied. Includes normal piece-finding and minor adjustments; excludes long breaks, filming, dismantling and modifications. Sources may use different methods. This range is neither a statistical interval nor a limit: your build may take less or more time.
How we estimate times · sources and method
Editorial assessment of the first illustrated arrangement: ThunderROARus puts a dinosaur-like body on a Technic chassis with oversized tyres. The pull-back vehicle combines a mechanical structure with decorative panels; the estimate includes an initial test. A first build following the instructions, including normal piece finding; an adult may help when needed. Breaks and subsequent play are excluded. No verified timed build: indicative values with substantial variation.
Sources do not always specify the builder’s experience. The three experience bands are our editorial assessment, based on the complexity of the set and individual accounts where available.
- LEGO · set-specific instructions ↗
Official name, pieces, age and imagery; no timed building data.
- LEGO · set manual ↗
Document for this set number. The duration is an editorial estimate, not a LEGO timing.
Checked: 26 October 2026 · Method v1.0 · Limited reports; not a statistical average.
BUILT BY THE COMMUNITY
Yours could be the first building time.
0 reviewed solo building times.
No solo building times have been reviewed yet. You can still find editorial estimates under Suggested times.
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Create a free account →BEYOND THE BRICKS
Did you know?
Inside the set
Teeth on the body
A large toothed mouth distinguishes the monster truck’s front.
LEGO sourceBuilding and pull-back
The pull-back vehicle combines a mechanical structure with decorative panels; the estimate includes an initial test.
LEGO sourceBeyond the set
The stories, places and inventions behind your build.
Grave Digger began in 1982
Dennis Anderson created Grave Digger in 1982, long before its brick-built interpretations.
Monster JamA Hall of Fame name
Monster Jam included Anderson in its 2020 Hall of Fame class in recognition of his career.
Monster JamWritten by HowLongToBuild · Sources are linked with each story · Checked on 26 October 2026. Historical facts and story details refer to the context described.
THE COMMUNITY’S EXPERIENCE
What was it like to build?
Three separate scores from 1 to 10. For difficulty, 1 means very easy and 10 means very difficult.
No approved ratings yet. Scores are never generated by this site or inferred from the recommended age.
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Specific steps, useful checks and sticking points. Contributions appear after moderation, in their original language. Do not upload instruction pages or personal contact details.
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Sign in to contributeSET THE MOOD
A soundtrack for your build
· Selected for the subject and atmosphere
Movement and character for vehicles, city scenes and imaginative details. An informal alternative to large orchestral scores.
OUR PICK
¿Y Tú Qué Has Hecho?
Buena Vista Social Club · Buena Vista Social Club
Groove, cities and movementEditorial suggestions, not official soundtracks for the set. External services may require an account or subscription; editions and availability can vary by country. Suggest another soundtrack →
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YOUR NEXT BUILD
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Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Monster Jam DIGatron Pull-Back
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30 min – 1 h 20 min
Suggested time · Intermediate
Same theme, a new build
Official LEGO® image · © LEGO Group and/or the respective rights holders. Source: LEGO Italy ↗
Monster Jam Sparkle Smash Pull-Back
243 pieces · 7+
30 min – 1 h 20 min
Suggested time · Intermediate
Same theme, a new build