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Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece and leave with the element ID LEGO asks for, or a link to buy the part.

The Guardian Battle

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21180 The Guardian Battle

251 pieces in 94 part and color combinations, plus 1 minifigure.

The official piece count includes the 4 parts inside the set's minifigures, which this inventory lists separately. Spare parts are counted in neither figure.

Before you call it missing

Builders who report a missing piece often find it in one of these places. Tick each one off as you look.

Look-alike colors in this set

These parts appear in this set in two colors that are easy to confuse. If you are one short in one color, check whether it went in where the other color belongs. Each color has its own element ID in the parts list at the back of the instructions.

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Piece checklist

Plates Special 67 pieces

  • Bracket 1 x 2 - 2 x 2 Black Part 44728 Element 6117973 or 6048855 ×2
  • Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] Black Part 61252 Element 6308000 or 4517925 ×2
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Blue Part 60478 Element 6073890 ×12
  • Plate Special 1 x 2 with Handle on End [Closed Ends] Dark Turquoise Part 60478 Element 6295286 ×4
  • Plate Special 1 x 2 Side Handle [Free Ends] Green Part 2540 Element 4542391 or 4519974 ×12
  • Bracket 1 x 2 - 2 x 2 Inverted Light Bluish Gray Part 99207 Element 4654580 ×2
  • Plate Special 1 x 2 with Clip Horizontal on Side Light Bluish Gray Part 11476 Element 6313114 or 6028812 ×1
  • Plate Special 1 x 2 with Handles on Ends Light Bluish Gray Part 18649 Element 6093058 ×1
  • Plate Special 1 x 2, Top Clip [Open O] Light Bluish Gray Part 44861 Element 6326078 ×10
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Red Part 87580 Element 6126048 or 4581308 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Sand Green Part 87580 Element 6186826 ×9
  • Plate Special 1 x 2 Side Handle [Free Ends] Tan Part 2540 Element 4140593 or 4125271 ×1
  • Plate Special 1 x 2 with Clip Vertical on End Tan Part 78256 Element 6372047 ×2
  • Plate Special 1 x 4 with 2 Studs with Groove [New Underside] Tan Part 41740 Element 6257600 ×1
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Tan Part 87580 Element 4565387 ×2
  • Plate Special 2 x 4 with Groove and Two Center Studs (Jumper) Tan Part 65509 Element 6294227 ×1
  • Plate Special 1 x 2 with Clip Horizontal on End Trans-Clear Part 63868 Element 6358934 ×2
  • Plate Special 2 x 2 with Groove and Center Stud (Jumper) Trans-Dark Blue Part 87580 Element 6499253 or 6382531 ×2

Plates 45 pieces

  • Plate 2 x 2 Black Part 3022 Element 302226 ×1
  • Plate 1 x 1 with Black Eyes, Dark Orange Nose Print Bright Light Orange Part 3024pr0020 Element 6385120 1 spare in the box ×1
  • Plate 1 x 1 with Black Eyes, Dark Pink Nose Print Bright Pink Part 3024pr0021 Element 6385121 1 spare in the box ×1
  • Plate 2 x 3 Dark Blue Part 3021 Element 6554192 or 4530028 ×1
  • Plate 2 x 12 Dark Green Part 2445 Element 6186824 ×1
  • Plate 2 x 4 Dark Green Part 3020 Element 6618075 or 4586057 ×4
  • Plate 2 x 6 Dark Green Part 3795 Element 6618084 or 6253283 ×2
  • Plate 1 x 2 Dark Tan Part 3023 Element 4528604 or 4497082 ×1
  • Plate 1 x 4 Dark Tan Part 3710 Element 4626904 or 4497088 ×1
  • Plate 2 x 3 Dark Tan Part 3021 Element 6035540 or 6015192 ×1
  • Plate 1 x 1 Dark Turquoise Part 3024 Element 6213778 or 4121555 1 spare in the box ×2
  • Plate 2 x 2 Green Part 3022 Element 302228 ×2
  • Plate 1 x 1 Light Bluish Gray Part 3024 Element 4211399 1 spare in the box ×2
  • Plate 1 x 1 with Black Eyes, Medium Lavender Nose Print Medium Blue Part 3024pr0022 Element 6391662 1 spare in the box ×1
  • Plate 1 x 1 x 2/3 with Open Stud Olive Green Part 86996 Element 6382541 ×3
  • Plate 1 x 2 Orange Part 3023 Element 4177932 or 4163009 ×2
  • Plate 1 x 2 Sand Green Part 3023 Element 4655080 or 4642428 ×2
  • Plate 1 x 3 Tan Part 3623 Element 4121921 or 362305 ×10
  • Plate 3 x 3 Cross Tan Part 15397 Element 6061575 ×1
  • Plate 6 x 10 Tan Part 3033 Element 4624185 or 4218966 ×2
  • Plate 1 x 1 x 2/3 with Open Stud Yellowish Green Part 86996 Element 6382547 ×4

Bricks 36 pieces

  • Brick 2 x 2 Dark Pink Part 3003 Element 4517992 or 4497170 ×4
  • Brick 1 x 2 Dark Turquoise Part 3004 Element 6217659 or 4121500 ×1
  • Brick 1 x 2 Light Aqua Part 3004 Element 6022032 Also in Sand Green ×4
  • Brick 2 x 2 Medium Azure Part 3003 Element 6603316 or 4653970 ×1
  • Brick 2 x 2 Red Part 3003 Element 4103590 or 300371 ×3
  • Brick 1 x 2 Sand Green Part 3004 Element 4642425 or 4623925 Also in Light Aqua ×2
  • Brick 2 x 2 Sand Green Part 3003 Element 6075624 or 4642424 ×14
  • Brick 2 x 4 Sand Green Part 3001 Element 6075626 or 4642412 ×3
  • Brick 2 x 3 Tan Part 3002 Element 4159739 or 300205 ×2
  • Brick 2 x 2 Yellow Part 3003 Element 4103588 or 300374 ×1
  • Brick 2 x 6 Yellow Part 2456 Element 4181143 or 245624 ×1

Tiles 32 pieces

  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×1
  • Tile 1 x 1 with Groove Dark Blue Part 3070b Element 6554193 or 4631385 1 spare in the box ×4
  • Tile 2 x 3 with Pixelated Sand Green Face Print (Minecraft) Dark Blue Part 26603pr0081 Element 6385123 ×1
  • Tile 1 x 1 with Groove Dark Tan Part 3070b Element 6055172 1 spare in the box ×1
  • Tile 1 x 3 Dark Tan Part 63864 Element 6015452 ×5
  • Tile 1 x 2 with Groove Lavender Part 3069b Element 6345796 or 6112962 ×12
  • Tile 2 x 3 Tan Part 26603 Element 6175367 ×3
  • Tile 2 x 3 with Pixelated Orange Eye Print Tan Part 26603pr0005 Element 6600961 or 6299721 ×1
  • Tile 1 x 1 with Groove Yellowish Green Part 3070b Element 6304896 1 spare in the box ×4

Bars, Ladders and Fences 15 pieces

  • Bar Holder with Clip Orange Part 11090 Element 6390029 or 6162893 ×12
  • Antenna 1 x 4 with Flat Top Trans-Clear Part 3957b Element 6514014 or 6166111 ×1
  • Bar, Angled with 1 x 1 Round Plate / Stud on End Trans-Clear Part 65578 Element 6510188 or 6285587 1 spare in the box ×2

Plants & Trees 15 pieces

  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Blue Part 24866 Element 6382540 1 spare in the box ×2
  • Plant, Flower 2 x 2 Leaves - Angular Bright Green Part 4727 Element 4143562 ×3
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Bright Green Part 24866 Element 6526150 or 6206150 1 spare in the box ×1
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Dark Pink Part 24866 Element 6209679 1 spare in the box ×2
  • Plant, Flower Stem with Bar and 6 Stems Green Part 19119 Element 6269940 or 6097232 ×1
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Light Aqua Part 24866 Element 6251854 1 spare in the box ×2
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Red Part 24866 Element 6206148 1 spare in the box ×2
  • Plant, Flower, Plate Round 1 x 1 with 5 Petals Yellow Part 24866 Element 6299813 1 spare in the box ×2

Bricks Special 13 pieces

  • Brick Special 1 x 1 with Stud on 1 Side Black Part 87087 Element 4558954 ×4
  • Brick Special 1 x 2 with Vertical Closed Handle on Edge Light Bluish Gray Part 34816 Element 6198932 ×1
  • Brick Special 1 x 2 x 1 2/3 with 4 Studs on 1 Side Light Bluish Gray Part 22885 Element 6123809 ×1
  • Brick Special 1 x 1 with Studs on 2 Adjacent Sides Tan Part 26604 Element 6175968 ×4
  • Brick Special 1 x 1 x 1 2/3 with Studs on 1 Side White Part 32952 Element 6552171 or 6548288 ×3

Bricks Round and Cones 8 pieces

  • Brick Round 1 x 1 Open Stud Lime Part 3062b Element 4212454 ×7
  • Brick Round 1 x 1 Open Stud Trans-Clear Part 3062b Element 6514232 or 6223655 ×1

Animal / Creature Body Parts 3 pieces

  • Animal Body Part, Axolotls (Fish) Body Bright Light Orange Part 86879 Element 6383178 ×1
  • Animal Body Part, Axolotls (Fish) Body Bright Pink Part 86879 Element 6383977 ×1
  • Animal Body Part, Axolotls (Fish) Body Medium Blue Part 86879 Element 6383978 ×1

Bricks Sloped 3 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Tan Part 54200 Element 4516055 or 4278069 1 spare in the box ×2
  • Brick Sloped 45° 1 x 1 x 2/3 Quadruple Convex [Pyramid] Trans-Light Blue Part 22388 Element 6581705 or 6313366 1 spare in the box ×1

Projectiles / Launchers 3 pieces

  • Launcher, Brick Special 1 x 4 Spring Shooter with Light Bluish Gray Top Dark Bluish Gray Part 15400 Element 6324200 or 6048898 ×1
  • Projectile, Spring Shooter Ammunition 8L Bar Trans-Dark Blue Part 15303 Element 6296379 or 6065898 ×2

Tiles Special 3 pieces

  • Tile Special 1 x 1 with Clip with Rounded Edges Sand Green Part 15712 Element 6348059 or 6125669 ×1
  • Tile Special 2 x 2 Inverted with Pixelated Red Eye Print Sand Green Part 11203pr0020 Element 6299729 ×1
  • Tile Special Round 1 x 1 with Hollow Bar Trans-Clear Part 20482 Element 6507895 or 6186867 1 spare in the box ×1

Plates Round Curved and Dishes 2 pieces

  • Plate Round 1 x 1 with Solid Stud Yellow Part 6141 Element 614124 1 spare in the box ×2

Plates Wedged 2 pieces

  • Wedge Plate 2 x 4 Black Part 51739 Element 4531412 ×1
  • Wedge Plate 2 x 4 Orange Part 51739 Element 6025385 ×1

Minifig Shields, Weapons, & Tools 1 piece

  • Weapon Trident, Blocky Sand Green Part 78801 Element 6347366 1 spare in the box ×1

Technic Bricks 1 piece

  • Technic Brick 1 x 2 [1 Pin Hole] Dark Turquoise Part 3700 Element 6345402 or 4140338 ×1

Technic Connectors 1 piece

  • Technic Pin Connector Round with 4 Clips Black Part 90202 Element 6320293 or 6052369 ×1

Technic Pins 1 piece

  • Technic Pin with Friction Ridges Lengthwise with No Center Slots Black Part 61332 Element 6279875 1 spare in the box ×1

Minifigures 1 figure

  • Diver Minifigure, checked as a whole figure ×1

Tick each piece as you find it, or mark it missing.

When a piece really is missing

Ask LEGO

LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for the set number and each piece's element ID, the number printed beside the piece in the parts list at the back of the instructions. This checker lists both.

Request a replacement from LEGO

Buy the piece

Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from older or second-hand sets.

Keep a record

Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.

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