How many pieces are in the Ultrasonic Showdown?

Ultrasonic Showdown contains 187 pieces.

What age is the Ultrasonic Showdown recommended for?

This set is recommended for ages 18+.

When was the Ultrasonic Showdown released?

Ultrasonic Showdown was released in 2015.

🏛 Ultra Agents

Set #70171

Ultrasonic Showdown

Name: Ultrasonic Showdown
Brand: LEGO
SKU: 70171-1

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

🏆 Best For: Kids and LEGO fans who enjoy action-packed play scenarios ⏱ 1.5 hr build 🧩 187 pcs

★★★★☆ 4.1

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.

MSRP

$19.99

Best Price

$17.99

You Save

10% OFF

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📝 Our Take

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

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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

🧩

187

Pieces

⏱

1.5h

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

↑ Trending up since release

Investment Grade

⏳ Appreciating

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

⚖ Compare Similar Sets

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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.

📦 Full Parts Inventory - 66 unique parts • 157 total pieces

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

Slope 45° 2 x 2

Part #: 3039 1× Dark Bluish Gray

Slope 45° 2 x 1 w...

Part #: 3040b 2× White

Slope 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

Wedge Sloped 4 x ...

Part #: 43710 1× Black

Wedge Sloped 4 x ...

Part #: 43711 1× Black

Wedge Plate 3 x 2...

Part #: 43722 1× White

Wedge Plate 3 x 2...

Part #: 43722 1× Black

Wedge Plate 3 x 2...

Part #: 43723 1× White

Wedge Plate 3 x 2...

Part #: 43723 1× Black

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

Wedge Curved 4 x ...

Part #: 47753 2× Black

Wedge Plate 8 x 3...

Part #: 50304 1× Black

Wedge Plate 8 x 3...

Part #: 50305 1× Black

Slope 30° 1 x 1 x...

Part #: 54200 2× Black

Slope 30° 1 x 1 x...

Part #: 54200 2× Trans-Light Blue

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

Slope 18° 2 x 1 x...

Part #: 61409 2× Black

Slope 18° 2 x 1 x...

Part #: 61409 1× White

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

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$19.99

Amazon

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💎 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

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Inventory Statistics

Unique Parts

157

Total Pieces

Minifigures

Inventory Version: 1

Ultra Agents Unite!Defeat evil in the Ultrasonic Showdown!

Ultrasonic Showdown

📝 Our Take

Ask BlockTalk about this set

🧱 Building Experience

📈 Investment Analysis

⚖ Compare Similar Sets

2 Minifigures Included

📦 Full Parts Inventory - 66 unique parts • 157 total pieces

🛒 Where to Buy

💎 Notable Parts

💡 MOC Potential

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Community Insights

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Inventory Statistics

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Ultra Agents Unite!
Defeat evil in the Ultrasonic Showdown!