---
title: "blue ninja costume kids — Niche Verdict: Skip it (26/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/clothing-shoes-jewelry/blue-ninja-costume-kids"
last_updated: "2026-07-13T23:24:25.843Z"
locale: en
meta:
  description: "a small market ($0/yr) — blue ninja costume kids doesn't clear our bar today."
  "og:description": "a small market ($0/yr) — blue ninja costume kids doesn't clear our bar today."
  "og:title": "blue ninja costume kids — Niche Verdict: Skip it (26/100) | Amazon United States - Flapen"
---

Back to Flapen home

# **blue ninja costume kids**

**Skip it**

A small market ($0/yr) — this niche doesn't clear our bar today.

Market size 0Growth 31Conversion 0Competition 28Returns 26Price range 88Avg price 95Brand share 7Review moat 43Quality gap 24

**Avg price**

**Incredible****$26.69**

avg listing price — sweet spot $15–$100

**Price range**

**Great****$13.28–$33.72**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Review moat**

**Okay****2,166.08**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Okay****+4.9%**

90-day search growth — must beat 0% to launch

**Competition**

**Okay****68%**

top-5 click share — leaders hold, buyers still browse

**Returns**

**Okay****5.8%**

return rate — above 6% kills the launch gate

**Quality gap**

**Bad****4.6★**

avg incumbent rating — lower means beatable quality

**Brand share**

**Bad****97%**

top-5 brand share — brand-locked demand

**Market size**

**Bad****$0**

$0/yr · 32K searches

**Conversion**

**Bad****0.0%**

search→purchase rate — share of searches ending in a sale

## **Competition**

The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them.

**Brands**

**6 **—flat

**Sellers**

**8**

**Top-5 brand share**

**97%**

**Open market**

**0%**

- Spooktacular Creations32% - Fun Costumes29% - SATKULL18% - Bosvin10% - Missanabie8% - Runcati3%

## **Product shelf**

Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.

0%10%$020%$030%$040%$01101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 12 tracked products in this niche — three views at once, no toggling.

### **Top sellers**

by 90-day click share

[1![Fun Costumes Kids Regal Blue Ninja Costume | Ninja Costumes - Small - Black blue](https://m.media-amazon.com/images/I/41Kcpt4XDJL.jpg)**Fun Costumes Kids Regal Blue Ninja Costume | Ninja Costumes - Small - Black blue**Fun Costumes**$19.61**4.6★9 rev](https://www.amazon.com/dp/B0CBSPN3LB) [2![SATKULL Blue Ninja Costume for Kids Ninja Deluxe Costumes Set with Ninjas Accessories for Boy Dress Up(Kids-L-8/9T)](https://m.media-amazon.com/images/I/41OIELX3a2L.jpg)**SATKULL Blue Ninja Costume for Kids Ninja Deluxe Costumes Set with Ninjas Accessories for Boy Dress Up(Kids-L-8/9T)**SATKULL**$22.35**4.7★2,514 rev](https://www.amazon.com/dp/B0BK4NHFK8) [3![Spooktacular Creations Kids Halloween Ninja Costume Blue Black Ninja Kung-Fu Outfit for Boys Teen Halloween Costumes for DressUp and Themed Party (Medium 8-10 yrs)](https://m.media-amazon.com/images/I/51Fth6HbbJL.jpg)**Spooktacular Creations Kids Halloween Ninja Costume Blue Black Ninja Kung-Fu Outfit for Boys Teen Halloween Costumes for DressUp and Themed Party (Medium 8-10 yrs)**Spooktacular Creations**$30.45**4.6★2,532 rev](https://www.amazon.com/dp/B08BWKXNT6) [4![Spooktacular Creations Halloween Ninja Costume Blue Ninja Outfit Set for Kids Halloween Costumes with Accessories for Boys Dress Up and Role Play Party (Small 5-7 yrs)](https://m.media-amazon.com/images/I/41wyqYGJELL.jpg)**Spooktacular Creations Halloween Ninja Costume Blue Ninja Outfit Set for Kids Halloween Costumes with Accessories for Boys Dress Up and Role Play Party (Small 5-7 yrs)**Spooktacular Creations**$30.40**4.7★10,729 rev](https://www.amazon.com/dp/B0B1PY7689) [5![3PCS Anime Costume Ninja Costume Ninja Accessories Role Cosplay Outfit Halloween Fancy Cool Costume(L)](https://m.media-amazon.com/images/I/41VJ28upFEL.jpg)**3PCS Anime Costume Ninja Costume Ninja Accessories Role Cosplay Outfit Halloween Fancy Cool Costume(L)**Missanabie**$13.28**4.4★4 rev](https://www.amazon.com/dp/B0D97HMFPV)

**~~View all top sellers →~~**

### **Newest**

by launch date

[![Runcati Mens Renaissance Hooded Cloak Medieval Samurai Witch Vampire Cape Wizard Raven Halloween Costume](https://m.media-amazon.com/images/I/31FPlKzHFAL.jpg)**Runcati Mens Renaissance Hooded Cloak Medieval Samurai Witch Vampire Cape Wizard Raven Halloween Costume**Runcati**$24.73**26 rev5mo ago](https://www.amazon.com/dp/B0GH6CBCF9) [![3PCS Anime Costume Ninja Costume Ninja Accessories Role Cosplay Outfit Halloween Fancy Cool Costume(L)](https://m.media-amazon.com/images/I/41VJ28upFEL.jpg)**3PCS Anime Costume Ninja Costume Ninja Accessories Role Cosplay Outfit Halloween Fancy Cool Costume(L)**Missanabie**$13.28**4 rev1y ago](https://www.amazon.com/dp/B0D97HMFPV) [![Kids Ninjia Costume - Boys & Girls Muscle Ninja Costume Suit with Deluxe Ninja Toys Halloween Cospaly Dress Up (Blue) 10-12 Years](https://m.media-amazon.com/images/I/51jJqgxjuPL.jpg)**Kids Ninjia Costume - Boys & Girls Muscle Ninja Costume Suit with Deluxe Ninja Toys Halloween Cospaly Dress Up (Blue) 10-12 Years**Bosvin**$30.05**234 rev2y ago](https://www.amazon.com/dp/B0D2RT3SDH) [![Kids Ninjia Costume - Muscle Ninja Costume Suit with Deluxe Ninja Toys for Little Boys & Girls Halloween Cospaly Dress Up (Blue) 5T 6-7 Years](https://m.media-amazon.com/images/I/51jJqgxjuPL.jpg)**Kids Ninjia Costume - Muscle Ninja Costume Suit with Deluxe Ninja Toys for Little Boys & Girls Halloween Cospaly Dress Up (Blue) 5T 6-7 Years**Bosvin**$33.72**234 rev2y ago](https://www.amazon.com/dp/B0D2RQ9C4J) [![Spooktacular Creations Halloween Ninja Costume Kids Blue Silver Ninja Dragon Jumpsuit Set Boys Halloween Costume for DressUp and RolePlay Party (Large 10-12 yrs)](https://m.media-amazon.com/images/I/51AgFoiLtEL.jpg)**Spooktacular Creations Halloween Ninja Costume Kids Blue Silver Ninja Dragon Jumpsuit Set Boys Halloween Costume for DressUp and RolePlay Party (Large 10-12 yrs)**Spooktacular Creations**$32.77**4,066 rev2y ago](https://www.amazon.com/dp/B0CZNGJHJ8)

**~~View all new products →~~**

### **Trending**

90-day click momentum

[![Runcati Mens Renaissance Hooded Cloak Medieval Samurai Witch Vampire Cape Wizard Raven Halloween Costume](https://m.media-amazon.com/images/I/31FPlKzHFAL.jpg)**Runcati Mens Renaissance Hooded Cloak Medieval Samurai Witch Vampire Cape Wizard Raven Halloween Costume**Runcati**$24.73**4.4★**▲ 936%**](https://www.amazon.com/dp/B0GH6CBCF9) [![3PCS Anime Costume Ninja Costume Ninja Accessories Role Cosplay Outfit Halloween Fancy Cool Costume(L)](https://m.media-amazon.com/images/I/41VJ28upFEL.jpg)**3PCS Anime Costume Ninja Costume Ninja Accessories Role Cosplay Outfit Halloween Fancy Cool Costume(L)**Missanabie**$13.28**4.4★**▲ 825%**](https://www.amazon.com/dp/B0D97HMFPV) [![Fun Costumes Kids Regal Blue Ninja Costume | Ninja Costumes - Small - Black blue](https://m.media-amazon.com/images/I/41Kcpt4XDJL.jpg)**Fun Costumes Kids Regal Blue Ninja Costume | Ninja Costumes - Small - Black blue**Fun Costumes**$19.61**4.6★**▲ 502%**](https://www.amazon.com/dp/B0CBSPN3LB) [![Spooktacular Creations Halloween Ninja Costume Kids Blue Silver Ninja Dragon Jumpsuit Set Boys Halloween Costume for DressUp and RolePlay Party (Large 10-12 yrs)](https://m.media-amazon.com/images/I/51AgFoiLtEL.jpg)**Spooktacular Creations Halloween Ninja Costume Kids Blue Silver Ninja Dragon Jumpsuit Set Boys Halloween Costume for DressUp and RolePlay Party (Large 10-12 yrs)**Spooktacular Creations**$32.77**4.6★**▲ 378%**](https://www.amazon.com/dp/B0CZNGJHJ8) [![Spooktacular Creations Kids Halloween Ninja Costume Blue Black Ninja Kung-Fu Outfit for Boys Teen Halloween Costumes for DressUp and Themed Party (Medium 8-10 yrs)](https://m.media-amazon.com/images/I/51Fth6HbbJL.jpg)**Spooktacular Creations Kids Halloween Ninja Costume Blue Black Ninja Kung-Fu Outfit for Boys Teen Halloween Costumes for DressUp and Themed Party (Medium 8-10 yrs)**Spooktacular Creations**$30.45**4.6★**▲ 283%**](https://www.amazon.com/dp/B08BWKXNT6)

**~~View all trending →~~**

## **Demand & seasonality**

Weekly Amazon search volume, last 84 weeks — +4.9% search growth over the last 90 days.

5K3KSpike '25Prime Day '25Spike '26 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun

Peak months: Sep, Oct, Nov · busiest ÷ quietest = 35.5×

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Value For Money**25%

*“The value for the price seems good”*

**Quality-Overall**16%

*“Really fantastic quality”*

**Size-Overall**10%

*“Great price and accurate size description”*

**Washability**6%

*“Has survived many washes”*

**Color**6%

*“The color is accurate to the photos”*

**Material Quality**4%

*“The material feels better than expected”*

**Gifting Purpose**3%

*“it was his favorite present”*

**Adjustability/Rotatability/Reclining**3%

*“easy to adjust”*

**Warmth**2%

*“the nicer fabric makes it warmer”*

**Advertised Vs Actual Product**2%

*“Better than it should be”*

### **What buyers complain about **

**Thickness**17%

*“not like the super thin costume material some of these come with”*

**Size-Overall**9%

*“The only downsides for me are the fit”*

**Material Quality**5%

*“The material is kind of thin so probably won't hold up to too much wear and tear”*

**Arm Fit**4%

*“The arm holes are also pretty tight”*

**Weight Heavy**4%

*“heavier than I expected”*

### **Top return reasons **

**Size-Overall**65%

**Material Quality**8%

**Color**7%

**Smell**3%

**Product Condition**3%

**Defective Material/Parts**2%

**Sleeve Fit**2%

**Thin**2%

**Comfort-Overall**2%

**Chest Fit**2%