How many pieces are in the Ultrasonic Showdown?

Ultrasonic Showdown contains 187 pieces.

When was the Ultrasonic Showdown released?

Ultrasonic Showdown was released in 2015.

🏛 Ultra Agents

Set #70171

Ultrasonic Showdown

Ultrasonic Showdown is a fun, action-packed set from the now-retired Ultra Agents theme.

Before you buy

Who it's for: Beginner build Kids and LEGO fans who enjoy action-packed play scenarios
Build: 187 pieces · about 1.5 hours Build time is an estimate.
Price: $19.99 list price · 10.7¢ per piece
Availability: Likely retired

★★★★☆ 4.1 AI-generated review score, not a customer rating

Fans appreciate the unique minifigures and play features, especially the rapid shooters. Some find the build relatively simple, but the overall design and action-packed theme are well-received.

$19.99

Best Price

$17.99

You Save

10% OFF

📝 Our Take

AI-assisted editorial summary, grounded in our LEGO database and public community discussions. How we use AI

Ultrasonic Showdown is a fun, action-packed set from the now-retired Ultra Agents theme. It perfectly captures the essence of a classic hero-versus-villain scenario with a cool vehicle for the agent and a menacing mechanical spider for the villain.

This set is perfect for kids and LEGO collectors looking for a small, playable set with unique minifigures. The build is relatively simple, making it a great choice for younger builders while still offering enough detail to appeal to older fans.

Skip this if you're looking for a complex build or a large display piece. This set is designed for play and smaller collections; consider larger Ultra Agents sets for a more substantial building experience.

✨ New

Ask BlockTalk about this set

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BlockTalk

Hi! I'm BlockTalk, your LEGO expert. Ask me anything about the Ultrasonic Showdown - building tips, investment potential, comparisons, or anything else!

Try asking:

How does this set compare to other Ultra Agents sets in terms of playability? What are some creative ways to expand the Ultrasonic Showdown with other LEGO sets? Is this set a good value for the price considering the unique minifigures and parts? How should I display this set to best showcase the action features and minifigures?

🧱 Building Experience

AI-assisted build estimate, grounded in our LEGO database and public community discussions. How we use AI

🧩

187

Pieces

⏱

1.5h

Estimated Build Time

📊

Beginner

Difficulty

Build Highlights:

Simple and straightforward build
Incorporates play features like rapid shooters
Unique mechanical spider design
Compact and easily displayable

📈 Investment Analysis

AI-assisted investment analysis, grounded in our LEGO database and public community discussions. How we use AI

↑ Trending up since release

Investment Grade

⏳ Retired

The Ultrasonic Showdown set, while small, benefits from being part of the Ultra Agents theme, which has a dedicated following. Its relatively low piece count and original MSRP make it an accessible entry point for collectors. The presence of unique minifigures, particularly Professor Brainstein with his mechanical spider legs, adds to its appeal. As a retired set, its value is likely to gradually increase, but its smaller size might limit significant price surges. However, the rising price trend indicates growing collector interest.

Not Financial Advice: Content is for educational purposes only. Past performance doesn't guarantee future results. Full disclaimer

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Compared to other small LEGO sets, the Ultrasonic Showdown stands out due to its unique Ultra Agents theme and distinctive villain design. While sets like the LEGO City vehicles offer similar play experiences, this set provides a more defined hero-versus-villain scenario. For those interested in similar themes, consider other Ultra Agents sets for a more comprehensive collection.

2 Minifigures Included

Agent Curtis Bolt

4 parts

Professor Brainstein with Mechanical Spider Legs

26 parts

B+

The set includes Agent Curtis Bolt and the unique Professor Brainstein with Mechanical Spider Legs. Professor Brainstein is a standout figure due to his intricate design and specialized parts, making him a desirable collectible.

📦 Parts Inventory

Piece count: 187
Parts cataloged in this inventory: 66 unique parts, 157 pieces
Minifigures: 2

The piece count includes the 30 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Missing a piece? Check this set piece by piece, with look-alike colors flagged and element IDs for replacements.

Tile Round 2 x 2 ...

Part #: 14769 1× Black

Brick Special 1 x...

Part #: 15411 2× Black

Plate Special 1 x...

Part #: 15573 1× Pearl Gold

Wedge Plate 4 Stu...

Part #: 15706 4× Black

Launcher Trigger,...

Part #: 18587 2× Light Bluish Gray

Launcher, Weapon ...

Part #: 18588 2× White

Equipment Radio [...

Part #: 19220 1× Black

Wedge Plate 3 x 3...

Part #: 2450 2× Dark Bluish Gray

Plate 4 x 4 Corner

Part #: 2639 2× White

Technic Pin with ...

Part #: 2780 4× Black

Brick 2 x 2

Part #: 3003 1× Dark Bluish Gray

Plate 2 x 4

Part #: 3020 5× Dark Bluish Gray

Plate 2 x 3

Part #: 3021 4× White

Plate 2 x 2

Part #: 3022 1× Dark Bluish Gray

Plate 1 x 2

Part #: 3023 9× Trans-Light Blue

Brick Special 1 x...

Part #: 30237b 1× Black

Plate 4 x 4

Part #: 3031 2× Black

Plate 2 x 8

Part #: 3034 1× Light Bluish Gray

Wedge Plate 6 x 1...

Part #: 30355 1× Black

Wedge Plate 6 x 1...

Part #: 30356 1× Black

Brick Sloped 45° ...

Part #: 3039 1× Dark Bluish Gray

Brick Sloped 45° ...

Part #: 3040b 2× White

Brick Curved 2 x ...

Part #: 30602 3× Trans-Light Blue

Tile 1 x 2 with G...

Part #: 3069b 1× Trans-Red

Plate 1 x 3

Part #: 3623 2× Dark Bluish Gray

Technic Brick 1 x...

Part #: 3700 3× Dark Bluish Gray

Technic Brick 1 x...

Part #: 3701 2× Dark Bluish Gray

Plate 2 x 6

Part #: 3795 1× Dark Bluish Gray

Hinge Brick 1 x 2...

Part #: 3937 2× Black

Part #: 43121 1× Black

Brick Wedged, Slo...

Part #: 43710 1× Black

Brick Wedged, Slo...

Part #: 43711 1× Black

Wedge Plate 3 x 2...

Part #: 43722 1× Black

Wedge Plate 3 x 2...

Part #: 43722 1× White

Wedge Plate 3 x 2...

Part #: 43723 1× Black

Wedge Plate 3 x 2...

Part #: 43723 1× White

Brick Special 1 x...

Part #: 4595 1× Black

Dish 2 x 2 Invert...

Part #: 4740 1× Trans-Light Blue

Brick Curved 2 x ...

Part #: 47457 1× Dark Bluish Gray

Brick Wedged, Cur...

Part #: 47753 2× Black

Wedge Plate 8 x 3...

Part #: 50304 1× Black

Wedge Plate 8 x 3...

Part #: 50305 1× Black

Brick Sloped 30° ...

Part #: 54200 2× Trans-Light Blue

Brick Sloped 30° ...

Part #: 54200 2× Black

Technic Axle 8 wi...

Part #: 55013 2× Dark Bluish Gray

Cone 1 x 1 [Top G...

Part #: 59900 2× Trans-Orange

Plate Special 1 x...

Part #: 60470b 1× Black

Hinge Brick 2 x 2...

Part #: 6134 2× Light Bluish Gray

Brick Sloped 18° ...

Part #: 61409 1× White

Brick Sloped 18° ...

Part #: 61409 2× Black

Plate Round 1 x 1...

Part #: 6141 25× Trans-Orange

Turntable 4 x 4 S...

Part #: 61485 2× White

Tail Shuttle

Part #: 6239 2× Black

Technic Brick 1 x...

Part #: 6541 2× White

Tile 1 x 6 with G...

Part #: 6636 2× White

Brick Round 4 x 4...

Part #: 87081 2× Black

Plate Special 2 x...

Part #: 87580 2× Dark Bluish Gray

Windscreen 6 x 4 ...

Part #: 87752 1× Trans-Light Blue

Brick Round 2 x 2...

Part #: 92947 2× Black

Bracket 1 x 2 - 2...

Part #: 93274 2× Black

Brick Round Corne...

Part #: 95188 2× Black

Weapon Gun / Pist...

Part #: 95199 1× White

Brick Round 2 x 2...

Part #: 98100 2× Black

Tile Round 1 x 1

Part #: 98138 4× Trans-Light Blue

Bracket 1 x 2 - 2...

Part #: 99207 2× Red

Bracket 1 x 2 - 1...

Part #: 99780 4× Black

Bracket 1 x 2 - 1...

Part #: 99781 3× White

🧱 Sticker Sheet for...

Part #: 21670 1× [No Color/Any Color]

The set features a variety of translucent orange and blue elements, which are useful for adding visual flair to MOCs. The inclusion of rapid shooters also provides interesting play and building possibilities.

🛒 Where to Buy

eBay

✓ In Stock

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Walmart

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$18.99

Target

✓ In Stock

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$19.99

💎 Notable Parts

Trans-Orange Plate Round 1 x 1 with Solid Stud (25x) $3.75

Trans-Light Blue Plate 1 x 2 (9x) $0.90

Black Wedge Plate 4 Stud 45° Angle Plate (4x) $0.60

White Launcher, Weapon Rapid Shooter Six Barrel, 3 Fingers (2x) $1.50

Est. BrickLink Part Value

$6.75

💡 MOC Potential

🚗 Agent vehicles, like a motorcycle or small airplane

🤖 Larger, more complex robots or mechs

🏙 Small city diorama additions

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

Based on 8 videos

3.0 /5

Mixed

0% positive

BlockTalk AI

The LEGO Ultra Agents Ultrasonic Showdown (70171) receives mixed reviews from the YouTube community, with a neutral overall sentiment. Reviewers like just2good offer requested reviews of the set, while others, such as Brickology Productions, provide standard set reviews.

LEGO Ultra Agents Ultrasonic Showdown review! 70171

just2good • 20.9K views Review

NEW! LEGO Ultra Agents 70171 Review: Ultrasonic Showdown

Brickology Productions • 4.5K views Review

Community Sentiment

Based on 8 YouTube reviews

Not enough Reddit data

YouTube

3.0 /5

Mixed

0% positive

Positive

Mixed

Critical

BlockTalk AI Analysis

What the Community Says

2 YouTube reviews

BlockTalk AI Summary

just2good provides a straightforward review of the Ultrasonic Showdown set, and Brickology Productions offers a general overview without strong positive or negative opinions. The focus remains on presenting the set's features rather than expressing strong personal opinions.