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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.

Mateo vs. Cyber Brain Mech

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71495 Mateo vs. Cyber Brain Mech

362 pieces in 103 part and color combinations, plus 2 minifigures.

The official piece count includes the 6 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.

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Piece checklist

Black 119 pieces

  • Bar Holder with Hole and Bar Handle Black Part 23443 Element 6321194 or 6143318 ×8
  • Bracket 1 x 1 - 1 x 2 Black Part 79389 Element 6380236 ×10
  • Brick 1 x 4 Black Part 3010 Element 301026 ×2
  • Brick Curved 2 x 1 No Studs [1/2 Bow] Black Part 11477 Element 6047276 ×8
  • Brick Curved 2 x 2 x 2/3 Black Part 15068 Element 6053077 ×6
  • Brick Curved 3 x 1 No Studs Black Part 50950 Element 4251161 ×2
  • Brick Sloped 18° 2 x 1 x 2/3 with 4 Slots / Grate Black Part 61409 Element 4541191 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Black Part 54200 Element 4504382 or 4287159 1 spare in the box ×2
  • Brick Sloped 33° 3 x 2 Black Part 3298 Element 329826 ×2
  • Brick Sloped 45° 2 x 1 Triple with Inside Stud Holder Black Part 15571 Element 6051508 ×3
  • Brick Sloped 45° 2 x 1 with 2/3 Cutout [New Version] Black Part 15672 Element 6069000 or 4653087 ×2
  • Brick Wedged, Curved 2 x 3 x 2/3 Two Studs, Wing End Black Part 47456 Element 4285883 or 4218569 ×3
  • Brick Wedged, Curved 3 x 2 with Stud Notch Left Black Part 80177 Element 6390748 ×1
  • Brick Wedged, Curved 3 x 2 with Stud Notch Right Black Part 80178 Element 6390749 ×1
  • Brick Wedged, Sloped 2 x 5 Left Black Part 3504 Element 6475203 ×2
  • Brick Wedged, Sloped 2 x 5 Right Black Part 3505 Element 6475202 ×2
  • Plate 1 x 3 Black Part 3623 Element 362326 ×6
  • Plate 2 x 2 Black Part 3022 Element 302226 ×8
  • Plate 2 x 4 Black Part 3020 Element 302026 ×4
  • Plate 2 x 8 Black Part 3034 Element 303426 ×1
  • Plate Special 1 x 1 Rounded with Handle Black Part 26047 Element 6157554 ×1
  • Plate Special 1 x 4 with Towball Black Part 3184 Element 4516020 or 4189102 ×1
  • Plate Special Round 2 x 2 with Center Stud (Jumper Plate) Black Part 18674 Element 6195325 ×9
  • Technic Axle 4 Black Part 3705 Element 370526 ×1
  • Technic Axle and Pin Connector Angled #3 - 157.5° Black Part 32016 Element 6261386 or 4107082 ×2
  • Technic Brick 1 x 1 with Axle Hole Black Part 73230 Element 6344819 ×4
  • Technic Brick Special 2 x 2 with Ball and Axle Hole, with 6 Holes in Ball Black Part 57909b Element 6521191 ×2
  • Technic Pin with Friction Ridges Lengthwise with No Center Slots Black Part 61332 Element 6279875 1 spare in the box ×1
  • Tile 2 x 3 Black Part 26603 Element 6162892 ×2
  • Tile Special 1 x 1 with Clip with Rounded Edges Black Part 15712 Element 6335388 or 6066102 ×2
  • Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] Black Part 99563 Element 6156991 ×12
  • Tile Special 2 x 2 Corner with Cut Corner - Facet Black Part 27263 Element 6166859 ×2
  • Tile Special 2 x 3 Pentagonal Black Part 22385 Element 6245251 or 6128992 ×4
  • Weapon Gun / Blaster 1 x 2 x 2/3 with Studs on Sides and Handle Black Part 15071 Element 6051527 ×1

White 49 pieces

  • Arm Mechanical with Clip [Thick Support] White Part 98313 Element 6976864 or 6276864 ×2
  • Bracket 1 x 1 - 1 x 1 White Part 36841 Element 6548291 or 6296132 ×2
  • Bracket 1 x 1 - 1 x 2 Inverted White Part 73825 Element 6548292 or 6337079 ×12
  • Bracket 1 x 2 - 2 x 2 White Part 44728 Element 6619296 or 6117940 ×6
  • Brick Curved 2 x 1 No Studs [1/2 Bow] White Part 11477 Element 6552145 or 6548276 ×1
  • Brick Curved 3 x 1 No Studs White Part 50950 Element 6548268 or 4249112 ×4
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) White Part 54200 Element 6550179 or 4504369 1 spare in the box ×2
  • Brick Sloped Inverted 33° 3 x 2, Connections between Studs, Round Bottom Pin White Part 2752 Element 6552208 or 6435932 ×2
  • Plate 2 x 2 Corner White Part 2420 Element 6548254 or 242051 ×2
  • Plate Round 1 x 1 with Open Stud White Part 85861 Element 6168642 or 4547649 1 spare in the box ×3
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] White Part 4081b Element 6281990 or 4632566 ×1
  • Plate Special 2 x 2 with Bar Frame Octagonal, Reinforced, Completely Round Studs White Part 75937 Element 6009016 ×1
  • Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin White Part 32064a Element 6548286 or 6178921 ×8
  • Tile Round 1 x 2 White Part 1126 Element 6507793 or 6448745 ×2
  • Tile Special 2 x 3 Pentagonal White Part 22385 Element 6550174 or 6245249 ×1

Medium Azure 43 pieces

  • Bracket 1 x 2 - 2 x 2 Inverted Medium Azure Part 99207 Element 6441006 ×7
  • Brick 1 x 2 Medium Azure Part 3004 Element 6603336 or 6092674 ×2
  • Brick Special 1 x 2 Rounded with Center Bars Medium Azure Part 77808 Element 6525399 ×4
  • Cable, Curved Flexible with Bars on Each End Medium Azure Part 6955 Element 6510358 1 spare in the box ×1
  • Plate 1 x 2 Medium Azure Part 3023 Element 6603337 or 6097419 ×6
  • Plate 1 x 4 Medium Azure Part 3710 Element 6603965 or 6070757 ×7
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Medium Azure Part 4032a Element 6109752 ×4
  • Plate Special 1 x 1 with Clip Vertical [Thick Open O Clip] Medium Azure Part 60897 Element 6445843 ×12

Light Bluish Gray 38 pieces

  • Bracket 1 x 2 - 1 x 2 Inverted Light Bluish Gray Part 99780 Element 6004990 ×8
  • Brick Special 1 x 2 with Studs on 2 Sides Light Bluish Gray Part 52107 Element 4657459 ×1
  • Hinge Plate 1 x 4 Locking Dual 1 Finger Light Bluish Gray Part 44568 Element 6276045 or 4211840 ×1
  • Launcher, Plate Special 1 x 2 with Mini Blaster Square Light Bluish Gray Part 69754 Element 6360382 ×1
  • Plate Round 1 x 1 with Solid Stud Light Bluish Gray Part 6141 Element 4211525 1 spare in the box ×4
  • Plate Special 1 x 2 5.9mm Centre Side Towball Socket Light Bluish Gray Part 14704 Element 6414561 or 6338165 ×2
  • Plate Special 1 x 2 5.9mm Towball Socket Light Bluish Gray Part 14418 Element 6414556 or 6338163 ×2
  • Plate Special 1 x 2 Rounded with 2 Open Studs Light Bluish Gray Part 35480 Element 6248890 ×9
  • Plate Special 1 x 2 [Side Handle Closed Ends] Light Bluish Gray Part 48336 Element 4244627 ×2
  • Plate Special 1 x 2 with Clips Horizontal [Open O Clips] Light Bluish Gray Part 60470b Element 6337268 or 4556157 ×1
  • Plate Special 2 x 2 with Only 2 studs Light Bluish Gray Part 33909 Element 6212077 ×2
  • Technic Axle and Pin Connector Angled #3 - 157.5° Light Bluish Gray Part 32016 Element 6261387 or 4211552 ×1
  • Technic Brick 1 x 1 with Pin Hole Light Bluish Gray Part 6541 Element 4211535 ×2
  • Wedge Plate 3 x 6 Cut Corners Light Bluish Gray Part 2419 Element 4211352 ×2

Dark Bluish Gray 27 pieces

  • Bar 1L with Clip [Cut Edges and One Side Hole] [Full Clip] Dark Bluish Gray Part 3484 Element 6439040 ×1
  • Bracket 1 x 2 - 1 x 2 Dark Bluish Gray Part 99781 Element 6214341 ×6
  • Launcher Trigger, Weapon Gun Trigger Dark Bluish Gray Part 69755 Element 6360675 1 spare in the box ×3
  • Plate 2 x 3 Dark Bluish Gray Part 3021 Element 4211043 ×5
  • Plate Special 1 x 2 with End Towball Dark Bluish Gray Part 22890 Element 6370802 or 6338168 ×4
  • Plate Special 2 x 2 with Horizontal T-Bar Underneath Dark Bluish Gray Part 5066 Element 6457961 ×1
  • Pneumatic Hose Connector with Axle Connector Dark Bluish Gray Part 99021 Element 6265669 or 6020189 ×1
  • Technic Axle and Pin Connector Angled #2 - 180° Dark Bluish Gray Part 32034 Element 32034199 or 6271876 ×1
  • Technic Brick Special 2 x 2 with 10.2mm Balls with Holes and Axle Hole Dark Bluish Gray Part 17114 Element 6065816 ×1
  • Technic Brick Special 2 x 2 with Ball Socket Wide and Axle Hole, No Arm Holes Dark Bluish Gray Part 67696 Element 6338291 ×4

Trans-Dark Pink 24 pieces

  • Brick Round 2 x 2 D. Tube with 45° Elbow and Axle Holes (Crossholes) at Each End [LONG] Trans-Dark Pink Part 5489 Element 6510161 or 6500465 ×4
  • Cyber Brain with White Pattern Trans-Dark Pink Part 110049pat0001 Element 6512375 ×1
  • Dish 2 x 2 Inverted [Radar] Trans-Dark Pink Part 4740 Element 6580376 or 6245302 ×1
  • Energy Effect Pixelated Trans-Dark Pink Part 7131 Element 6523806 ×1
  • Plate Round 1 x 1 with Solid Stud Trans-Dark Pink Part 6141 Element 6514060 or 6240230 1 spare in the box ×16
  • Windscreen 6 x 6 x 3 Dome with Dual 2 Fingers Trans-Dark Pink Part 52979 Element 6544090 or 6391774 ×1

Red 12 pieces

  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×12

Trans-Clear 10 pieces

  • Brick 1 x 1 Trans-Clear Part 3005 Element 6514207 or 6220959 ×2
  • Plate Special 1 x 2 with Clip Horizontal on End Trans-Clear Part 63868 Element 6358934 ×8

Coral 9 pieces

  • Plate 1 x 2 Coral Part 3023 Element 6258094 ×9

Flat Silver 8 pieces

  • Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small Flat Silver Part 53451 Element 6270108 or 4612901 1 spare in the box ×8

Trans-Bright Green 6 pieces

  • Tile Round 1 x 1 Trans-Bright Green Part 98138 Element 6514198 or 6274748 1 spare in the box ×6

Vibrant Yellow 6 pieces

  • Plate 1 x 2 Vibrant Yellow Part 3023 Element 6382324 ×6

Lime 3 pieces

  • Plate 1 x 1 Lime Part 3024 Element 4621557 or 4561480 1 spare in the box ×1
  • Tile Special Round 2 x 2 with Hole Lime Part 15535 Element 6167483 ×2

Pearl Titanium 2 pieces

  • Launcher, Plate Special 1 x 2 with Mini Blaster Square Pearl Titanium Part 69754 Element 6345952 ×2

Yellow 2 pieces

  • Technic Axle 3 Yellow Part 4519 Element 6130007 ×1
  • Technic Brick 1 x 2 [1 Pin Hole] Yellow Part 3700 Element 370024 ×1

Blue 1 piece

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×1

Pearl Gold 1 piece

  • Weapon Hilt with Bar, Hourglass Trans-Bright Green Pearl Gold Part 5330pat0002 Element 6554482 or 6501460 ×1

Trans-Red 1 piece

  • Tile 1 x 2 with Gold Circuitry, White Bars, Eyes Print Trans-Red Part 3069bpr9939 Element 6523340 ×1

[No Color/Any Color] 1 piece

  • Sticker Sheet for Set 71495-1 [No Color/Any Color] Part 10112126 Element 6535434 ×1

Minifigures 2 figures

  • Dreamling, VR Screen Minifigure, checked as a whole figure ×1
  • Mateo, Trans-Bright Green Cape Minifigure, checked as a whole figure ×1

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

When a piece really is missing

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