Lego® Super Mario™ 71366 Boomer Bill Barrage Expansion Set

Current best price

LEGO 71366 is currently available from £17.99 incl. shipping at eBay. 28% below RRP (£24.99). Only one retailer in our comparison stocks it.

Updated 2 November 2026 at 15:34

LEGO® Super Mario™ Boomer Bill Barrage Expansion Set 71366 (1/12)
LEGO® Super Mario™ Boomer Bill Barrage Expansion Set 71366 (1/12)
LEGO® Super Mario™ Boomer Bill Barrage Expansion Set 71366 (2/12)
LEGO® Super Mario™ Boomer Bill Barrage Expansion Set 71366 (3/12)
LEGO® Super Mario™ Boomer Bill Barrage Expansion Set 71366 (4/12)
LEGO® Super Mario™ Boomer Bill Barrage Expansion Set 71366 (5/12)
LEGO® Super Mario™ Boomer Bill Barrage Expansion Set 71366 (6/12)
LEGO® Super Mario™ Boomer Bill Barrage Expansion Set 71366 (7/12)
LEGO® Super Mario™ Boomer Bill Barrage Expansion Set 71366 (8/12)
LEGO® Super Mario™ Boomer Bill Barrage Expansion Set 71366 (9/12)
LEGO® Super Mario™ Boomer Bill Barrage Expansion Set 71366 (10/12)
LEGO® Super Mario™ Boomer Bill Barrage Expansion Set 71366 (11/12)
LEGO® Super Mario™ Boomer Bill Barrage Expansion Set 71366 (12/12)

Lego 71366 price comparison: where is it cheapest?

Prices incl. shipping to the UK ·

Brickfact may earn a commission when you buy through a merchant link. Commissions do not determine the order of offers. How Brickfact compares prices

iFurther information
The Lego set Boomer Bill Barrage Expansion Set with the set number 71366 is part of the LEGO Super Mario™ theme and is recommended for ages 7+. It was released in August 2020. It includes 3 minifigures. The model has 132 pieces, and we estimate it takes around < 1 hour to build. 281 Brickfact users have this set in their collection.
The set weighs about 0.229 kg. The box measures 10.3 x 7.5 x 1.8 in (26.2 x 19.1 x 4.6 cm). The recommended retail price is £24.99.
Our Brickfact Lego price comparison compares the prices of 1 shop for this set. It is currently cheapest at eBay for £17.99 including shipping. That is £0.14 per piece. With this offer you save £7.00 off the recommended retail price, a discount of 28%.
The Part-Out-Value (POV) is the sum of the average prices paid on bricklink.com for all parts of this set. It is about £16.67.

Lego 71366 product data

Set Information

Set ID
71366
Pieces
132
Building Time
< 1 hour
Age Range
7+
Minifigures
4

Availability

Release
08/2020
Retiring Status
Retired (07/2021)

Price Information

RRP
£24.99
Insiders Points (for purchase at Lego)
200
Part Out Value
£16.67
i

Packaging

Weight
0.229 kg
Packaging dimensions
10.3 x 7.5 x 1.8 in
EAN (GTIN13)
5702016618457

Popularity with Brickfact users

users have this set
281
buyers in the last 12 months
12

281 Brickfact users have Boomer Bill Barrage Expansion Set in their collection. 12 users bought it in the last 12 months. It ranks #9 among the most-collected Super Mario™ sets on Brickfact.

Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of 2 November 2026.

Lego 71366 price trend

Average sale price on secondary marketplaces – not the new price at retailers.

Current market value
£14.88
Growth vs. RRP
−40.5 % £24.99
Range
£13.87 – £15.85
Average
£14.81

Loading price history…

Lego 71366 price history: how has the price changed?

Brickfact has been recording retailer prices since 27/10/2026. Best price so far: £17.99 (2 days ago).

Current best price
£17.99 -28% vs. RRP
Best price since 27/10/2026
£17.99 -28% vs. RRP · 2 days ago

Daily lowest prices at the tracked shops, including shipping. Gaps indicate days with no recorded price. The table lists each shop’s lowest price.

Lowest price per retailer (since 27/10/2026)

RetailerCurrentLowest priceDate
eBay LogoeBay£17.99£17.9902/11/26

Lowest price per day that Brickfact recorded at the retailers in the price comparison, including shipping where known – as in the comparison above. Amazon offers are not included in the price history.

Minifigures from 71366 Boomer Bill Barrage Expansion Set

The Boomer Bill Barrage Expansion Set set includes 3 different minifigures, 2 of which are unique to this set. The combined value of the minifigures is £10.55, which is ~42% of the RRP of this set.
x1
Thumbnail of minifigure mar0009
Shy Guy
Super Mario
time-logo
2020
#mar0009
£4.68
i
Unique
x2
Thumbnail of minifigure mar0015
Boomer Bill
Super Mario
time-logo
2020
#mar0015
£2.32
Unique
x1
Thumbnail of minifigure mar0061
Super Mushroom
Super Mario
time-logo
2020
#mar0061
£1.24
3 sets

Official Set Description for LEGO 71366 Boomer Bill Barrage Expansion Set

LEGO® Super Mario™ fans can take on a fast-spinning challenge with this Boomer Bill Barrage Expansion Set (71366). A great gift for kids to add to their LEGO Super Mario Starter Course (71360), this collectible toy playset features a spinner with 2 ‘flying’ Boomer Bill figures and a rotating platform with 2 difficulty levels (with or without studs). An enemy Shy Guy figure and a Super Mushroom boost the gameplay options.

Fun app
The free LEGO Super Mario app has intuitive Instructions PLUS, featuring cool viewing tools to make building easier and even more fun. It also suggests different ways to rebuild and play, and is a safe environment for kids to share ideas with other Mario fans.

Competitive action
Inspirational LEGO Super Mario playsets bring a family-favourite character into the real world. The Starter Course, Expansion Sets and Power-Up Packs allow fans to build their own levels and then try to master them in competitions with friends and family or solo gameplay.

  • Kids will love the fast-spinning, coin-collecting challenge they can create with this Boomer Bill Barrage Expansion Set (71366), bringing extra action to their LEGO® Super Mario™ Adventures with Mario Starter Course.
  • This unique toy playset features a spinning platform for LEGO® Mario™ (figure not included), a spinner with 2 ‘flying’ Boomer Bill figures, plus a Shy Guy figure and a Super Mushroom to boost the gameplay.
  • Players place LEGO® Mario™ (figure not included) on the platform’s studded end or the smooth end for added difficulty. How many times can they spin LEGO Mario without him falling or being knocked off by the Boomer Bills?
  • This 132-piece, creative LEGO® toy makes a fun birthday or Christmas gift for kids aged 7 and up, inspiring kids to customize their own unique levels to add to their Adventures with Mario Starter Course (71360).
  • Measuring over 4.5” (11.5cm) high, 9” (24cm) wide and 7.5” (20cm) deep in its basic formation, this modular playset can be rebuilt and combined with the Starter Course and other Expansion Sets in many ways.
  • This Expansion Set doesn’t need batteries – combine it with the LEGO® Mario™ figure in the Starter Course to power up the gameplay experience.
  • Kids can find building instructions, cool digital viewing tools and inspiration for ways to play on the free LEGO® Super Mario™ app. For a list of compatible Android and iOS devices, visit LEGO.com/devicecheck.
  • Creative LEGO® Super Mario™ toy building sets bring a family-favourite character into the real world. They allow fans to expand and rebuild to create unlimited challenges to master solo or with friends and family.
  • No need for a Super Star’s power to connect or pull apart LEGO® bricks! They meet the highest industry standards to ensure a perfect, easy connection and robust builds every time.
  • LEGO® building bricks and pieces are tested in almost every way imaginable so you can be assured that this collectible toy playset meets the highest safety and quality standards.
  • This set features digital building instructions. Now it’s easy to follow the steps on your mobile device or download a PDF of the printed building guide. Click the Building Instructions button at the bottom of this page to find and download the instructions.

Building Instruction for LEGO 71366 Boomer Bill Barrage Expansion Set

LEGO 71366 Frequently Asked Questions

How much does LEGO 71366 Boomer Bill Barrage Expansion Set cost?
The lowest price in the Brickfact price comparison is currently £17.99 incl. shipping at eBay. That is 28% below the RRP of £24.99.
Where can I buy LEGO 71366 cheapest?
Only one retailer in the Brickfact price comparison currently stocks LEGO 71366: eBay (£17.99).
Is LEGO 71366 still available?
LEGO has retired 71366 Boomer Bill Barrage Expansion Set. New copies are still available at 1 retailers in our price comparison while stocks last.
When was LEGO 71366 cheapest?
Since tracking began on 27/10/2026, the lowest shop price recorded by Brickfact for LEGO 71366 was £17.99 on 01/11/2026 at eBay, including shipping. Amazon prices are not included.

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