How many pieces does the LEGO King Boo and the Haunted Yard Expansion Set (71377-1) have?

The LEGO King Boo and the Haunted Yard Expansion Set set (71377-1) contains 431 pieces. It was released in 2020 as part of the LEGO Super Mario theme.

How can I find missing parts for LEGO set 71377-1?

On BrickMissing you can check which parts from the LEGO King Boo and the Haunted Yard Expansion Set (71377-1) you already own. Add your LEGO collection and we'll show exactly which of the 431 pieces you're missing and which you already have.

Can I build the LEGO King Boo and the Haunted Yard Expansion Set with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 431 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO King Boo and the Haunted Yard Expansion Set from?

The LEGO King Boo and the Haunted Yard Expansion Set (71377-1) belongs to the LEGO Super Mario theme. You can browse all Super Mario sets on BrickMissing to find more sets from this theme.

King Boo and the Haunted Yard Expansion Set - View 8

King Boo and the Haunted Yard Expansion Set

71377-1 Super Mario 2020 431 parts 6.9% catalog rarity Intermediate

The LEGO Super Mario 71377-1 King Boo and the Haunted Yard Expansion Set presents Mario with a series of spectral challenges. This 431-piece set includes a King Boo figure, two Goombas, and four Swoops, depicting a haunted yard from the Super Mario universe. Players begin by stomping on Goombas and a spider web to progress through the area. A flip-tree element then activates, revealing more of the grounds and leading to spinning Swoops that must be engaged. The ultimate goal is to topple King Boo, uncovering a Super Star. This set requires the LEGO Super Mario Starter Course (71360) for full interactive functionality.

Parts Inventory

🧱 431 parts

Showing the first 12 rows of the parts list (431 pieces in total). The full list loads automatically.

Color	Qty	LEGO price each
White	1×	Check price → View
Blue	4×	€0,13 View at LEGO → View
Reddish Brown	8×	€0,06 View at LEGO → View
Dark Brown	2×	€0,21 View at LEGO → View
Reddish Brown	1×	€0,06 View at LEGO → View
Black	2×	€0,06 View at LEGO → View
Dark Orange	4×	€0,13 View at LEGO → View
Reddish Brown	2×	€0,27 View at LEGO → View
Tan	1×	€0,07 View at LEGO → View
Reddish Brown	2×	€0,06 View at LEGO → View
Black	2×	€0,06 View at LEGO → View
Reddish Brown	4×	€0,22 View at LEGO → View

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Catalog rarity

How common are the parts in King Boo and the Haunted Yard Expansion Set?

6.9%Moderate rarity

more commonless common

10 of 144 recorded part+color combinations appear in 3 or fewer sets in our catalog. This does not measure replacement availability or price.

Theme average

9.3%

All sets

6.7%

Least common in our catalog

Tile 6 x 6 · White · only this set in our catalogBar 2L · Red · only this set in our catalogTile 2 x 2 · Dark Azure · only this set in our catalog

How we calculate this →

More Super Mario sets

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