How many pieces are in the Kai Fighter?

Kai Fighter contains 196 pieces.

What age is the Kai Fighter recommended for?

This set is recommended for ages 18+.

When was the Kai Fighter released?

Kai Fighter was released in 2014.

Breaking News

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Brickset • about 21 hours ago

🏛 Ninjago

Set #70721

Kai Fighter

The Kai Fighter is a fantastic little Ninjago set that packs a punch.

🏆 Best For: Ideal for younger Ninjago fans and those looking for a quick, enjoyable build experience. ⏱ 1.5 hr build 🧩 196 pcs

★★★★☆ 4.1

Fans appreciate the Kai Fighter's sleek design and the inclusion of General Cryptor, a unique minifigure. Some find the build relatively simple, but overall it's considered a solid and enjoyable set for Ninjago enthusiasts.

MSRP

$19.99

Best Price

$17.99

You Save

10% OFF

View on eBay

Check price on Amazon

📝 Our Take

The Kai Fighter is a fantastic little Ninjago set that packs a punch. Released in 2014 as part of the Rebooted theme, it offers a sleek design and two great minifigures at an affordable price point.

This set is perfect for Ninjago fans of all ages, especially those looking for a quick and satisfying build. The small size makes it ideal for display, and the play features add to the fun for younger builders.

Skip this if you're only interested in large, complex builds or have already collected most of the Rebooted Ninjago sets. Consider the larger Ninjago vehicles like the Ultra Sonic Raider (70505-1) for a more involved experience.

✨ New

Ask BlockTalk about this set

AI assistant with full set data

BlockTalk

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

Try asking:

How does the Kai Fighter compare to other Ninjago vehicles in terms of design and playability? What are some creative ways to display the Kai Fighter? Is this set a good value for its current price on the secondary market? How rare are the minifigures included in this set?

🧱 Building Experience

🧩

196

Pieces

⏱

1.5h

Build Time

📊

Beginner

Difficulty

Build Highlights:

Simple but effective building techniques create a swooshable fighter jet.
Clever use of angled plates to achieve the sleek design.
Fun play features including flick missiles.
Easy to display on a shelf or desk.

📈 Investment Analysis

↑ Trending up since release

Investment Grade

⏳ Appreciating

The Kai Fighter (70721-1) presents a moderate investment opportunity. As a retired Ninjago set from 2014, it benefits from the theme's enduring popularity and the set's relatively low original MSRP. The inclusion of two minifigures, including the General Cryptor, adds to its appeal. However, its small piece count may limit significant appreciation compared to larger, more complex sets. The rising price trend suggests growing demand, but potential investors should be mindful of market fluctuations and storage costs.

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

⚖ Compare Similar Sets

The Kai Fighter is a smaller, more affordable alternative to larger Ninjago vehicles like the Destiny's Bounty (70738-1) or the Ninja DB X (70750-1). While it lacks the complexity and piece count of those sets, it offers a more accessible entry point for younger fans or collectors on a budget. Its compact size also makes it easier to display.

2 Minifigures Included

Kai (Rebooted)

5 parts

General Cryptor (Rebooted)

5 parts

B+

The set includes two minifigures: Kai (Rebooted) and the exclusive General Cryptor, making it desirable for minifigure collectors.

📦 Full Parts Inventory - 75 unique parts • 186 total pieces

Tile Special 2 x ...

Part #: 11203 2× Dark Bluish Gray

Brick Special 1 x...

Part #: 11211 5× Red

Plate Special 1 x...

Part #: 11458 2× Dark Bluish Gray

Brick Curved 2 x ...

Part #: 11477 2× Black

Brick Wedged, Slo...

Part #: 13349 1× Black

Part #: 15621 1× Trans-Red

Sticker Sheet for...

Part #: 16050 1× [No Color/Any Color]

Tile Special 1 x ...

Part #: 2412b 3× Pearl Gold

Plate 2 x 2 Corner

Part #: 2420 2× Red

Wedge Plate 3 x 3...

Part #: 2450 4× Black

Brick Special 1 x...

Part #: 2653 2× Black

Brick Special 1 x...

Part #: 2921 2× Light Bluish Gray

Part #: 30173b 1× Flat Silver

Plate 2 x 4

Part #: 3020 4× Black

Part #: 3022 2× Yellow

Plate 1 x 2

Part #: 3023 9× Green

Plate 1 x 2

Part #: 3023 4× Red

Plate 1 x 1

Part #: 3024 2× Black

Plate 4 x 6

Part #: 3032 1× Black

Brick Round 2 x 2...

Part #: 30367b 1× Black

Bar 4L (Lightsabe...

Part #: 30374 2× Black

Brick Sloped 45° ...

Part #: 3039 1× Black

Part #: 3068b 2× Black

Plate Special 3 x...

Part #: 3176 2× Light Bluish Gray

Plate Special 1 x...

Part #: 32028 4× Light Bluish Gray

Technic Brick 1 x...

Part #: 32064a 1× White

Part #: 3660 6× Black

Part #: 3679 2× Light Bluish Gray

Turntable 2 x 2 P...

Part #: 3680 2× Black

Part #: 3794b 2× Black

Part #: 4282 1× Black

Wedge Plate 12 x ...

Part #: 47397 1× Black

Wedge Plate 12 x ...

Part #: 47398 1× Black

Part #: 54383 1× Black

Wedge Plate 6 x 3...

Part #: 54384 1× Black

Cone 1 x 1 [Top G...

Part #: 59900 1× Trans-Red

Cone 1 x 1 [Top G...

Part #: 59900 2× Pearl Gold

Plate Special 1 x...

Part #: 60470b 6× Red

Part #: 60602 2× Trans-Clear

Technic Pin 1/2 w...

Part #: 61184 3× Light Bluish Gray

Hinge Brick 2 x 2...

Part #: 6134 2× Black

Plate Round 1 x 1...

Part #: 6141 6× Pearl Gold

Turntable 4 x 4 S...

Part #: 61485 2× Black

Tail Shuttle

Part #: 6239 2× Red

Equipment Telesco...

Part #: 64644 1× Pearl Gold

Tile 1 x 6 with G...

Part #: 6636 2× Dark Bluish Gray

Brick Sloped Inve...

Part #: 72454 1× Black

Brick Sloped 30° ...

Part #: 85984 1× Dark Bluish Gray

Tile 2 x 4 with G...

Part #: 87079 6× Red

Technic Axle 4 wi...

Part #: 87083 1× Dark Bluish Gray

Cylinder 1 x 5 1/...

Part #: 87617 1× Black

Plate Special 1 x...

Part #: 92280 2× Black

Windscreen 8 x 4 ...

Part #: 92579 1× Trans-Brown

Brick Sloped 45° ...

Part #: 92946 4× Black

Weapon Sword, Big...

Part #: 98137 4× Pearl Gold

Bracket 1 x 2 - 2...

Part #: 99207 1× Red

The set provides a good selection of red and black plates and slopes, useful for building vehicles and other Ninjago-themed creations.

Community Insights

Real opinions from Reddit and YouTube

What Reddit Says

No Reddit discussions found for this set.

What YouTubers Say

1 video found

BlockTalk AI

The LEGO Ninjago Kai Fighter (70721) receives mixed reviews, with an overall sentiment score of 3.4/5. While reviewers like BricksNerd appreciate the solid build and cool design, particularly the adjustable wings, the overall reception is neutral, with few strong opinions expressed beyond the build quality.

LEGO Ninjago Kai Fighter 70721 Review Unboxing

BricksNerd • 42.0K views Review

What the Community Says

1 YouTube reviews

BlockTalk AI Summary

BricksNerd gives a positive review of the Kai Fighter (70721), praising its cool design, solid build, and the inclusion of the Kai and General Kryptor minifigures. He highlights the translucent red Techno-Blade as a key design feature.

Reddit Reviews

No Reddit reviews found

YouTube Reviews

1 video

LEGO Ninjago Kai Fighter 70721 Review Unboxing

BricksNerd

42.0K views Review

Community Content: These reviews are from Reddit and YouTube users sharing their personal experiences. Opinions may vary.

Inventory Statistics

Unique Parts

186

Total Pieces

Minifigures

Inventory Version: 1

Take to the Skies!
With the Kai Fighter

Random set of the day: Venomari Shrine

Kai Fighter

📝 Our Take

Ask BlockTalk about this set

🧱 Building Experience

📈 Investment Analysis

⚖ Compare Similar Sets

2 Minifigures Included

📦 Full Parts Inventory - 75 unique parts • 186 total pieces

🛒 Where to Buy

💎 Notable Parts

💡 MOC Potential

📰 Ninjago News

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Kai Fighter News (15)

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Community Insights

What Reddit Says

What YouTubers Say

What the Community Says

Reddit Reviews

YouTube Reviews

Inventory Statistics

Take to the Skies!With the Kai Fighter

Random set of the day: Venomari Shrine

Kai Fighter

📝 Our Take

Ask BlockTalk about this set

🧱 Building Experience

📈 Investment Analysis

⚖ Compare Similar Sets

2 Minifigures Included

📦 Full Parts Inventory - 75 unique parts • 186 total pieces

🛒 Where to Buy

💎 Notable Parts

💡 MOC Potential

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📰 Ninjago News

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Kai Fighter News (15)

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Harder, Better, Faster, Stronger: Updating Exo-Force mecha with modern MOCs [...

How to Use DUPLO In Your LEGO MOCs

Does anybody else find it frustrating how the inverted arch (part 70681) fits...

Random figure of the day: njo0984

Random figure of the day: njo1016

Guys, this is my Lego Collection. W or L? Lego 10333 — $352 used; perfect con...

Guys, this is my Lego Collection. W or L? Lego 10333 — $352 used; perfect con...

Community Insights

What Reddit Says

What YouTubers Say

What the Community Says

Reddit Reviews

YouTube Reviews

Inventory Statistics

We value your privacy

Take to the Skies!
With the Kai Fighter