# LEGO 71377-1 — King Boo and the Haunted Yard Expansion Set (2020)

Source: https://www.brickmissing.com/sets/71377-1-king-boo-and-the-haunted-yard-expansion-set
Publisher: BrickMissing (https://www.brickmissing.com) — free LEGO parts checker. Not affiliated with the LEGO Group.

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.

## Set facts

- Set number: 71377-1
- Name: King Boo and the Haunted Yard Expansion Set
- Theme: Super Mario › Expansion Set
- Released: 2020
- Pieces: 431
- Distinct part + colour lots: 144
- Build difficulty: intermediate
- Repairability: 6.9% of this set's lots are hard to replace (10 of 144 part+colour combinations appear in three or fewer sets in the entire LEGO catalog).

## Complete parts list (144 lots, 431 pieces)

Prices are the official LEGO Pick a Brick price per individual part, where LEGO publishes one.

| Qty | Part | Colour | Part no. | LEGO element ID | LEGO price each |
| ---: | --- | --- | --- | --- | --- |
| 1 | Tile 6 x 6 with Bottom Tubes with King Boo Face Print | White | 10202pr0008 | 6318695 | — |
| 4 | Brick Special 1 x 2 with 2 Studs on 1 Side | Black | 11211 | 6189191 | €0,13 |
| 8 | Slope Curved 2 x 1 No Studs [1/2 Bow] | Reddish Brown | 11477 | 6069984 | €0,06 |
| 2 | Brick Arch 1 x 3 x 3 [Gothic] | Dark Brown | 13965 | 6177917 | €0,21 |
| 1 | Tile 2 x 2 Corner | Reddish Brown | 14719 | 6221608 | €0,06 |
| 2 | Tile 2 x 2 Corner | Black | 14719 | 6133722 | €0,06 |
| 4 | Slope Curved 2 x 2 x 2/3 | Dark Orange | 15068 | 6104344 | €0,13 |
| 2 | Brick Arch 1 x 6 x 2 - Thin Top without Reinforced Underside [New Version] | Reddish Brown | 15254 | 6177998 | €0,27 |
| 1 | Tile Round 2 x 2 with Hole | Tan | 15535 | 6115248 | €0,07 |
| 2 | Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) | Reddish Brown | 15573 | 6092590 | €0,06 |
| 2 | Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper) | Black | 15573 | 6092585 | €0,06 |
| 4 | Wedge Plate 4 Stud 45° Angle Plate | Reddish Brown | 15706 | 6084573 | €0,22 |
| 1 | Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening] | Tan | 18575 | 6346517 | €0,36 |
| 4 | Plate Special 1 x 2 with Handles on Ends | Black | 18649 | 6099483 | €0,12 |
| 1 | Brick Arch 1 x 3 x 2 Inverted [Inside Bow] | Reddish Brown | 18653 | 6133833 | €0,16 |
| 2 | Plate Special Round 2 x 2 with Center Stud (Jumper Plate) | Reddish Brown | 18674 | 6102360 | €0,07 |
| 2 | Plant, Flower Stem with Bar and 6 Stems | Black | 19119 | 6299824 | €0,17 |
| 1 | Bar 2L with Towball | Red | 22484 | 6323083 | — |
| 8 | Slope Curved 2 x 1 Inverted | Black | 24201 | 6308097 | €0,06 |
| 1 | Plate 2 x 12 | Dark Tan | 2445 | 6322219 | €0,36 |
| 2 | Weapon Spear Tip with Fins | Black | 24482 | 6269965 | €0,15 |
| 8 | Brick 1 x 2 x 5 with Hollow Studs | Dark Bluish Gray | 2454b | 4211075 | €0,31 |
| 4 | Wedge Plate 2 x 2 Cut Corner | Reddish Brown | 26601 | 6218366 | €0,07 |
| 8 | Wedge Plate 2 x 2 Cut Corner | Magenta | 26601 | 6249742 | €0,07 |
| 12 | Technic Pin with Friction Ridges Lengthwise and Center Slots | Black | 2780 | 278026 | — |
| 2 | Insect, Spider with Elongated Tail Section | Black | 29111 | 6234806 | €0,16 |
| 1 | Brick 2 x 2 with Star with Eyes Print | Black | 3003pr0139 | 6309028 | — |
| 4 | Brick 1 x 2 | Dark Bluish Gray | 3004 | 4211088 | €0,11 |
| 7 | Brick 1 x 2 | Black | 3004 | 300426 | €0,11 |
| 7 | Brick 1 x 2 | White | 3004 | 300401 | €0,11 |
| 1 | Brick 1 x 2 | Red | 3004 | 300421 | €0,11 |
| 2 | Window 1 x 2 x 2 2/3 with Rounded Top | Reddish Brown | 30044 | 4542131 | €0,28 |
| 3 | Window 1 x 2 x 2 2/3 Pane Lattice Diamond with Rounded Top | Pearl Gold | 30046 | 6173106 | €0,18 |
| 2 | Brick 1 x 1 | Dark Bluish Gray | 3005 | 4211098 | €0,07 |
| 6 | Brick 1 x 6 | White | 3009 | 300901 | €0,25 |
| 7 | Brick 1 x 4 | White | 3010 | 301001 | €0,16 |
| 5 | Brick Special 1 x 2 Palisade [aka Log] | Reddish Brown | 30136 | 4211180 | €0,10 |
| 7 | Brick Special 1 x 4 Palisade [aka Log] | Reddish Brown | 30137 | 4211181 | €0,18 |
| 2 | Plate 2 x 4 | Dark Bluish Gray | 3020 | 4211065 | €0,15 |
| 1 | Plate 2 x 4 | Dark Tan | 3020 | 4267874 | €0,15 |
| 1 | Plate 2 x 3 | Dark Tan | 3021 | 6035540 | €0,13 |
| 2 | Plate 2 x 2 | Light Bluish Gray | 3022 | 4211397 | €0,10 |
| 2 | Plate 2 x 2 | Reddish Brown | 3022 | 4216695 | €0,10 |
| 4 | Plate 1 x 2 | Dark Azure | 3023 | 4653988 | €0,08 |
| 5 | Plate 1 x 2 | Dark Orange | 3023 | 4570877 | €0,08 |
| 1 | Plate 1 x 2 | Reddish Brown | 3023 | 4211150 | €0,08 |
| 2 | Plate 1 x 2 | Black | 3023 | 302323 | €0,08 |
| 12 | Plate 1 x 2 | Dark Bluish Gray | 3023 | 4211063 | €0,08 |
| 3 | Plate 1 x 2 | Black | 3023 | 302326 | €0,08 |
| 4 | Brick Special 1 x 2 with Vertical Clip [Open O Clip] | Dark Bluish Gray | 30237b | 6335306 | €0,23 |
| 8 | Brick Special 1 x 2 with Vertical Clip [Open O Clip] | Reddish Brown | 30237b | 6330202 | €0,23 |
| 1 | Plate 2 x 8 | White | 3034 | 303401 | €0,29 |
| 7 | Plate 2 x 8 | Dark Tan | 3034 | 4246957 | €0,29 |
| 2 | Plate 2 x 8 | Light Bluish Gray | 3034 | 4211406 | €0,29 |
| 1 | Slope 45° 2 x 1 with Bottom Pin | Light Bluish Gray | 3040b | 4211614 | €0,10 |
| 2 | Slope 45° 2 x 2 Double Convex | Black | 3045 | 4189064 | €0,13 |
| 2 | Brick Round 1 x 1 Open Stud | Reddish Brown | 3062b | 4211183 | €0,06 |
| 2 | Tile 2 x 2 with Groove | Dark Orange | 3068b | 6186423 | €0,07 |
| 1 | Tile 2 x 2 with Star and Barcode Print (Sticker) | Black | 3068bpr0036 | 6315998 | — |
| 1 | Tile 2 x 2 with King Boo and Barcode Print (Sticker) | Dark Azure | 3068bpr0052 | 6323470 | — |
| 4 | Tile 2 x 2 with Explosion and Barcode Print (Sticker) | Black | 3068bpr0053 | 6319932 | — |
| 2 | Tile 2 x 2 with Coin and Barcode Print (Sticker) | Light Bluish Gray | 3068bpr0060 | 6316006 | — |
| 2 | Tile 2 x 2 with Goomba Face with Low Furrowed Brow and Curved Mouth Print | Dark Orange | 3068bpr0439 | 6319790 | — |
| 2 | Tile 2 x 2 with Goomba and Barcode Print (Sticker) | Dark Orange | 3068bpr9978 | 6315663 | — |
| 1 | Tile 1 x 2 with Groove | Reddish Brown | 3069b | 4211151 | €0,07 |
| 2 | Tile 1 x 1 with Groove | Black | 3070b | 307026 | €0,05 |
| 4 | Technic Brick 1 x 2 [2 Pin Holes] | Black | 32000 | 3200026 | €0,10 |
| 6 | Technic Pin 3/4 | Tan | 32002 | 6013938 | €0,08 |
| 2 | Plate Special 1 x 2 with Door Rail | Light Bluish Gray | 32028 | 4211568 | €0,05 |
| 1 | Technic Axle 2 Notched | Red | 32062 | 4142865 | €0,07 |
| 2 | Technic Beam 1 x 6 Thin | Black | 32063 | 6163980 | €0,13 |
| 1 | Technic Axle 5 | Light Bluish Gray | 32073 | 4211639 | €0,11 |
| 2 | Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced | Yellow | 32123b | 6271167 | €0,04 |
| 3 | Technic Gear 12 Tooth Double Bevel | Black | 32270 | 4177431 | €0,18 |
| 1 | Brick 1 x 2 x 2 with Inside Stud Holder | Reddish Brown | 3245c | 6172808 | €0,13 |
| 1 | Technic Beam 1 x 3 Thick | White | 32523 | 4208160 | €0,10 |
| 1 | Technic Worm Gear Type 2 | Light Bluish Gray | 32905 | 6185471 | €0,56 |
| 2 | Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side | Light Bluish Gray | 32952 | 6225242 | €0,10 |
| 5 | Slope 33° 3 x 2 | Black | 3298 | 329826 | €0,12 |
| 2 | Technic Gear 20 Tooth Double Bevel with Clutch on Both Sides | Black | 35185 | 6224999 | €0,41 |
| 4 | Brick Arch 1 x 4 | Reddish Brown | 3659 | 6177697 | €0,16 |
| 1 | Slope Inverted 45° 2 x 2 [Ovoid Bottom Pin, Bar-sized Stud Holes] | White | 3660 | 366001 | — |
| 2 | Plate 1 x 6 | Light Bluish Gray | 3666 | 4211438 | €0,17 |
| 1 | Technic Pin without Friction Ridges Lengthwise | Light Bluish Gray | 3673 | 4211807 | €0,05 |
| 8 | Slope 33° 3 x 3 Double Convex | Black | 3675 | 367526 | €0,28 |
| 1 | Technic Brick 1 x 2 [1 Pin Hole] | White | 3700 | 370001 | €0,12 |
| 3 | Technic Axle 4 | Red | 3705 | 6129995 | €0,08 |
| 1 | Technic Plate 2 x 4 [3 Holes] | Black | 3709 | 370926 | €0,13 |
| 2 | Plate 1 x 4 | Black | 3710 | 371026 | €0,12 |
| 2 | Brick Curved 1 x 2 x 1 No Studs | White | 37352 | 6248827 | €0,11 |
| 1 | Technic Plate 2 x 8 [7 Holes] | Light Bluish Gray | 3738 | 4211449 | €0,29 |
| 2 | Technic Gear Rack 1 x 4 | White | 3743 | 6457281 | €0,19 |
| 4 | Window Pane Latticed 1 x 2 x 2 | Pearl Gold | 38320 | 6295686 | €0,08 |
| 2 | Technic Brick 1 x 6 [5 Pin Holes] | Dark Bluish Gray | 3894 | 4210917 | €0,29 |
| 1 | Crown / Flower / Egg Shell Half | Pearl Gold | 39262 | 6257048 | €0,08 |
| 1 | Brick Round 2 x 2 with Axle Hole | Lime | 3941 | 4527943 | €0,11 |
| 1 | Plate 6 x 6 | White | 3958 | 4144012 | €0,53 |
| 1 | Technic Pin Long without Friction Ridges, with Anti-Roll Notch | Tan | 39888 | 6321305 | €0,08 |
| 1 | Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) | Black | 4032a | 403223 | €0,06 |
| 2 | Technic Beam 1 x 9 Thick | Black | 40490 | 4645732 | €0,29 |
| 1 | Plate Special 1 x 4 with 2 Studs with Groove [New Underside] | Black | 41740 | 6254045 | €0,07 |
| 2 | Brick Special 1 x 2 with Groove | Reddish Brown | 4216 | 6103004 | €0,11 |
| 1 | Technic Driving Ring Connector Smooth [2 rounded and 2 flat side walls] | Light Bluish Gray | 42195 | 6273212 | €0,13 |
| 2 | Gate 1 x 4 x 9 Arched with Bars and Three Studs | Black | 42448 | 4169414 | — |
| 1 | Technic Pin 1/2 | Black | 4274 | 4143005 | €0,05 |
| 2 | Slope 33° 3 x 1 | Dark Tan | 4286 | 6015454 | €0,10 |
| 1 | Hinge Plate 2 x 4 with Pin Hole with 2 Holes - Top | Light Bluish Gray | 43045 | 6256117 | €0,29 |
| 1 | Hinge Plate 2 x 4 with Pin Hole with 2 Holes - Bottom | Light Bluish Gray | 43056 | 6258903 | €0,44 |
| 1 | Bracket 1 x 2 - 2 x 2 | White | 44728 | 6117940 | €0,10 |
| 3 | Technic Axle 3 | Yellow | 4519 | 6130007 | €0,05 |
| 3 | Slope 30° 1 x 1 x 2/3 (Cheese Slope) | Dark Brown | 54200 | 6259071 | €0,06 |
| 8 | Slope 30° 1 x 1 x 2/3 (Cheese Slope) | Dark Azure | 54200 | 6133838 | €0,06 |
| 5 | Technic Axle Connector Smooth [with x Hole + Orientation] | Black | 59443 | 4512363 | €0,06 |
| 4 | Plate Special 1 x 2 with Clips Horizontal [Open O Clips] | Yellow | 60470b | 6337231 | €0,16 |
| 2 | Brick Special 1 x 1 with Clip Vertical [Open O Clip, Hollow Stud] | Dark Bluish Gray | 60475b | 6321350 | €0,15 |
| 1 | Slope 65° 2 x 1 x 2 | Dark Brown | 60481 | 4624089 | €0,12 |
| 2 | Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole | Dark Bluish Gray | 60483 | 6265093 | €0,07 |
| 8 | Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] | Black | 60897 | 6352221 | €0,08 |
| 2 | Plate Round 1 x 1 with Solid Stud | Light Bluish Gray | 6141 | 4211525 | €0,05 |
| 2 | Technic Pin Connector Round [Slotted] | Black | 62462 | 6173119 | €0,06 |
| 1 | Tile 1 x 3 | Dark Tan | 63864 | 6015452 | €0,11 |
| 1 | Door 1 x 4 x 6 Round Top with Window and Keyhole, Reinforced Edge | Dark Brown | 64390 | 6254792 | €0,91 |
| 2 | Technic Brick 1 x 1 with Pin Hole | Reddish Brown | 6541 | 4620075 | €0,07 |
| 2 | Plate Round Corners 6 x 6 x 2/3 Circle with Reduced Knobs | Dark Orange | 66789 | 6301632 | — |
| 4 | Plate Round Corners 8 x 8 x 2/3 Circle with Reduced Knobs | Dark Orange | 66790 | 6301642 | — |
| 6 | Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs | Light Bluish Gray | 66792 | 6294703 | €0,30 |
| 7 | Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs | Reddish Brown | 66792 | 6299920 | — |
| 4 | Plate Round Corners 4 x 4 x 2/3 Circle with Reduced Knobs | Dark Orange | 66792 | 6308871 | — |
| 2 | Feet, 2 x 2 x 2/3 with 4 Studs on Top | Reddish Brown | 66858 | 6300006 | — |
| 4 | Brick Special 1 x 2 x 1 2/3 with 8 Studs on 3 Sides | Dark Bluish Gray | 67329 | 6314192 | €0,36 |
| 8 | Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style] | Reddish Brown | 85080 | 6322211 | €0,10 |
| 1 | Slope 30? 1 x 2 x 2/3 | Black | 85984 | 4548180 | €0,07 |
| 1 | Technic Axle 4 with Stop | Dark Bluish Gray | 87083 | 6083620 | €0,07 |
| 4 | Plate Special 2 x 2 with Center Stud (Jumper) with Two Black Curved Lines Print | Dark Azure | 87580pr0002 | 6318696 | — |
| 9 | Wedge 2 x 2 Facet | Dark Bluish Gray | 87620 | 4624186 | €0,15 |
| 2 | Brick Arch 1 x 3 x 2 | Reddish Brown | 88292 | 6186577 | €0,17 |
| 4 | Window 1 x 2 x 2 Castle | Dark Bluish Gray | 90195 | 6181291 | — |
| 5 | Insect Accessory, Spider Web, Hanging | White | 90981 | 6006221 | €0,87 |
| 2 | Brick Arch 1 x 6 Raised Arch | Reddish Brown | 92950 | 4655611 | €0,19 |
| 2 | Slope Curved 4 x 2 No Studs | Dark Bluish Gray | 93606 | 6005668 | €0,24 |
| 4 | Tile Round 1 x 1 | Red | 98138 | 6284574 | €0,04 |
| 4 | Brick Special 1 x 2 with Masonry Brick Profile | Dark Bluish Gray | 98283 | 6000311 | €0,13 |
| 2 | Slope 75° 2 x 2 x 3 [Solid Studs] | Dark Bluish Gray | 98560 | 6000853 | €0,25 |
| 4 | Bracket 1 x 2 - 2 x 2 Inverted | Black | 99207 | 6133720 | €0,10 |

## Notes

- Track which of these parts you own and see what is missing: https://www.brickmissing.com/sets/71377-1-king-boo-and-the-haunted-yard-expansion-set
- Inventory data is based on official LEGO inventories via the Rebrickable catalog, updated daily.
- Part images, minifigure lists and related sets are on the set page: https://www.brickmissing.com/sets/71377-1-king-boo-and-the-haunted-yard-expansion-set