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Battle Arena

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2520 Battle Arena

453 pieces in 178 part and color combinations, plus 2 minifigures.

The official piece count includes the 10 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

Black 127 pieces

  • Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Medium Black Part 87747 Element 6270091 or 4563477 ×5
  • Bar 4L (Lightsaber Blade / Wand) Black Part 30374 Element 6116604 or 4140303 ×2
  • Brick 1 x 10 Black Part 6111 Element 611126 ×1
  • Brick 1 x 6 Black Part 3009 Element 300926 ×1
  • Brick 2 x 4 Black Part 3001 Element 300126 ×2
  • Brick Round 2 x 2 with Axle Hole Black Part 3941 Element 614376 or 614326 ×4
  • Brick Sloped 30° 1 x 2 x 2/3 Black Part 85984 Element 4548180 ×2
  • Brick Sloped 33° 3 x 1 Black Part 4286 Element 428626 ×3
  • Brick Sloped 45° 2 x 1 with Bottom Pin Black Part 3040b Element 4121966 or 304026 ×2
  • Brick Sloped 75° 2 x 2 x 3 [Hollow Studs] Black Part 3684 Element 4286874 or 4248065 ×2
  • Brick Sloped Inverted 45° 2 x 1 Black Part 3665 Element 366526 ×4
  • Brick Wedged, Sloped 4 x 2 Triple Left Black Part 43710 Element 6040297 or 4180413 ×1
  • Brick Wedged, Sloped 4 x 2 Triple Right Black Part 43711 Element 6040298 or 4180423 ×1
  • Hinge Brick 1 x 2 Base Black Part 3937 Element 393726 ×1
  • Launcher, Large Figure Weapon, Zamor Sphere Launcher, with Hole and Axle Hole Black Part 64275 Element 4581740 ×2
  • Plate 1 x 3 Black Part 3623 Element 362326 ×4
  • Plate 1 x 6 Black Part 3666 Element 366626 ×3
  • Plate 2 x 12 Black Part 2445 Element 244526 ×1
  • Plate 2 x 2 Black Part 3022 Element 302226 Also in Dark Bluish Gray ×2
  • Plate 2 x 3 Black Part 3021 Element 302126 ×2
  • Plate 2 x 6 Black Part 3795 Element 379526 ×1
  • Plate Round 1 x 1 with Solid Stud Black Part 6141 Element 614126 2 spares in the box ×19
  • Plate Special 1 x 1 with Clip Light, Bar Hole [Thick Ring] Black Part 4081b Element 6281993 or 4632571 ×4
  • Plate Special 1 x 1 with Clip Vertical [Thick U Clip] Black Part 4085c Element 408526 ×2
  • Technic Axle 10 Black Part 3737 Element 373726 ×4
  • Technic Axle 12 Black Part 3708 Element 370826 ×2
  • Technic Axle 4 Black Part 3705 Element 370526 ×2
  • Technic Beam 1 x 9 Bent (7 - 3) Thick Black Part 32271 Element 6276835 or 4140327 ×4
  • Technic Brick 1 x 1 with Pin Hole Black Part 6541 Element 654126 ×1
  • Technic Brick 1 x 2 [2 Pin Holes] Black Part 32000 Element 3200026 ×6
  • Technic Brick 1 x 2 with Axle Hole Type 2 [X Opening] Black Part 32064b ×4
  • Technic Brick 1 x 4 [3 Pin Holes] Black Part 3701 Element 370126 ×4
  • Technic Pin Connector Round [Slotted] Black Part 62462 Element 6173119 or 4526982 ×4
  • Technic Pin with Friction Ridges Lengthwise and Center Slots Black Part 2780 Element 4121715 or 278026 ×8
  • Technic Plate 2 x 4 [3 Holes] Black Part 3709 Element 370926 ×2
  • Technic Plate 2 x 6 [5 Holes] Black Part 32001 Element 3200126 ×2
  • Tile 1 x 4 with Groove Black Part 2431 Element 243126 ×4
  • Tile 2 x 2 with Groove Black Part 3068b Element 306826 ×4
  • Tile Special 1 x 2 Grille with Bottom Groove Black Part 2412b Element 241226 ×2
  • Turntable 6 x 6 Round Dark Bluish Gray Base with Black Top with Blue Skulls on White Print (Ninjago Spinner) Black Part 92547pr0005 Element 4612293 ×1
  • Weapon Sword / Katana / Shamshir with Uncapped Pommel [Square Guard] Black Part 30173b ×1
  • Wedge Plate 3 x 6 Cut Corners Black Part 2419 Element 241926 ×1

White 64 pieces

  • Animal Body Part / Plant, Tail / Claw / Horn / Branch / Tentacle, End Section White Part 40379 Element 6110023 or 4508454 ×4
  • Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Medium White Part 87747 Element 6270092 or 4613941 ×4
  • Animal Body Part, Dog Bone [Long] White Part 92691 Element 4600307 ×1
  • Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges White Part 2454a ×1
  • Brick 2 x 8 White Part 3007 Element 6619309 or 6033776 ×1
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top White Part 6091 Element 6285777 or 609101 ×2
  • 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 45° 2 x 2 White Part 3039 Element 6552103 or 303901 ×2
  • Brick Wedged, Curved 4 x 3 No Studs [Plain] White Part 64225 Element 6632143 or 4567878 ×1
  • Brick Wedged, Sloped 45° 4 x 2 Left White Part 43721 Element 4179873 ×1
  • Brick Wedged, Sloped 45° 4 x 2 Right White Part 43720 Element 4179872 ×1
  • Dish 2 x 2 Inverted [Radar] White Part 4740 Element 6601845 or 474001 ×2
  • Dish 3 x 3 Inverted [Radar] White Part 43898 Element 4179580 ×1
  • Plate 1 x 4 White Part 3710 Element 6552108 or 6548266 ×1
  • Plate 1 x 8 White Part 3460 Element 6550141 or 346001 ×2
  • Plate 2 x 4 White Part 3020 Element 6552098 or 302001 ×1
  • Plate 2 x 6 White Part 3795 Element 6550146 or 379501 ×1
  • Plate 4 x 8 White Part 3035 Element 6609533 or 303501 ×1
  • Plate Round 1 x 1 with Solid Stud White Part 6141 Element 6601919 or 614101 2 spares in the box ×16
  • Plate Special 1 x 2 with Handle on End [Closed Ends] White Part 60478 Element 6552131 or 4515364 ×8
  • Plate Special 1 x 2, Top Clip [Split] White Part 92280 Element 4598527 ×2
  • Tile 1 x 2 with Groove White Part 3069b Element 6548264 or 306901 ×2
  • Tile Special 1 x 1 with Clip and Straight Tips White Part 2555 Element 255501 ×2
  • Tile Special 1 x 2 Grille with Bottom Groove White Part 2412b Element 6601902 or 241201 ×1
  • Tile Special 2 x 2 with Top Pin White Part 2460 Element 246001 ×4

Light Bluish Gray 62 pieces

  • Bar 1L with Top Stud and Two Side Studs Light Bluish Gray Part 92690 Element 4640844 or 4600518 ×2
  • Bar 4L (Lightsaber Blade / Wand) Light Bluish Gray Part 30374 Element 6116608 or 4211628 ×1
  • Brick Sloped 33° 3 x 2 Light Bluish Gray Part 3298 Element 4211421 ×2
  • Brick Special 1 x 1 with Headlight Light Bluish Gray Part 4070 Element 4211476 ×2
  • Brick Special 1 x 2 with Grille Light Bluish Gray Part 2877 Element 4211383 ×2
  • Brick Special 1 x 2 with Pin Light Bluish Gray Part 2458 Element 4211364 ×1
  • Brick Special 2 x 2 with Pin and Axle Hole Light Bluish Gray Part 6232 Element 6347704 or 4211529 ×2
  • 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 1 with Clip Vertical [Thick U Clip] Light Bluish Gray Part 4085c Element 4211479 ×8
  • Plate Special 1 x 2 with 1 Stud with Groove (Jumper) Light Bluish Gray Part 3794b ×8
  • Plate Special 1 x 2 with Clips Horizontal [Thick U-Clips] Light Bluish Gray Part 60470a Element 4537900 ×2
  • Tap 1 x 1 without Hole in Spout Light Bluish Gray Part 4599b Element 4211503 ×4
  • Technic Axle 5 Light Bluish Gray Part 32073 Element 32073194 or 4211639 ×2
  • Technic Axle and Pin Connector Angled #3 - 157.5° Light Bluish Gray Part 32016 Element 6261387 or 4211552 ×4
  • Technic Brick 1 x 2 [1 Pin Hole] Light Bluish Gray Part 3700 Element 4211440 ×2
  • Technic Bush Light Bluish Gray Part 3713 Element 6275844 or 6271817 ×2
  • Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced Light Bluish Gray Part 32123b Element 6271165 or 4211573 1 spare in the box ×4
  • Technic Pin 1/2 with 2L Bar Extension Light Bluish Gray Part 61184 Element 6347715 or 4520320 ×2
  • Technic Pin Connector Perpendicular Long Light Bluish Gray Part 32557 Element 4211714 ×2
  • Weapon Lightsaber Hilt Short Curved with Ridges Light Bluish Gray Part 61199 Element 6547077 or 6107472 ×2
  • Weapon Lightsaber Hilt with Bottom Ring Light Bluish Gray Part 64567 Element 4581155 or 4539481 ×2
  • Weapon Spike Flexible 3.5L Light Bluish Gray Part 64727 Element 6270081 or 4616840 ×2

Red 56 pieces

  • Brick Round 1 x 1 Open Stud Red Part 3062b Element 306221 ×2
  • Brick Round 2 x 2 Dome Top, Blocked Open Stud, Bottom Axle Holder Red Part 30367b Element 4185891 ×4
  • Brick Special 1 x 1 with Stud on 1 Side Red Part 87087 Element 4558886 ×6
  • Cone 1 x 1 [Top Groove] Red Part 59900 Element 4529234 ×2
  • Door Frame 1 x 4 x 6 Type 2 Red Part 60596 Element 6262946 or 4550015 ×3
  • Hinge Brick 2 x 2 Top Plate Thin Red Part 6134 Element 613421 ×1
  • Plate 1 x 2 Red Part 3023 Element 302321 ×5
  • Plate 1 x 4 Red Part 3710 Element 371021 ×3
  • Plate 1 x 8 Red Part 3460 Element 346021 ×1
  • Plate 2 x 12 Red Part 2445 Element 4255035 or 4161545 ×1
  • Plate 2 x 16 Red Part 4282 Element 428221 ×1
  • Plate 2 x 6 Red Part 3795 Element 379521 ×1
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Red Part 2654 Element 4617080 or 4278275 ×2
  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Red Part 6019 Element 601971 or 601921 ×4
  • Projectile, Large Figure Weapon, Zamor Sphere / Ball Red Part 54821 Element 4545430 ×1
  • Technic Axle 2 Notched Red Part 32062 Element 4142865 ×1
  • Technic Plate 2 x 8 [7 Holes] Red Part 3738 Element 373821 ×2
  • Tile 1 x 2 with Groove Red Part 3069b Element 4178178 or 306921 ×3
  • Tile 1 x 4 with Groove Red Part 2431 Element 243121 ×2
  • Tile 1 x 6 with Groove Red Part 6636 Element 4113858 ×1
  • Tile 2 x 2 with Groove Red Part 3068b Element 306821 ×1
  • Tile 2 x 4 with Groove Red Part 87079 Element 4560179 ×7
  • Tile Special 1 x 1 with Clip and Straight Tips Red Part 2555 Element 255521 ×2

Reddish Brown 53 pieces

  • Bar 4L (Lightsaber Blade / Wand) Reddish Brown Part 30374 Element 6116613 or 4262974 ×1
  • Brick 1 x 1 Reddish Brown Part 3005 Element 4211242 ×3
  • Brick 1 x 10 Reddish Brown Part 6111 Element 6469351 or 4264633 ×1
  • Brick 1 x 2 x 5 with Blocked Open Studs and Bottom Stud Holder with Asymmetric Ridges Reddish Brown Part 2454a ×2
  • Brick 1 x 4 Reddish Brown Part 3010 Element 4211225 ×2
  • Brick Round 2 x 2 with Axle Hole Reddish Brown Part 3941 Element 4211166 ×14
  • Brick Sloped 33° 3 x 1 Reddish Brown Part 4286 Element 4211197 ×1
  • Brick Sloped 45° 2 x 2 Reddish Brown Part 3039 Element 4211202 ×1
  • Brick Special 1 x 2 Palisade [aka Log] Reddish Brown Part 30136 Element 4211180 ×5
  • Hinge Brick 1 x 4 [Lower] Reddish Brown Part 3831 Element 4215449 ×4
  • Hinge Brick 1 x 4 [Upper] Reddish Brown Part 3830 Element 6345000 or 6011460 ×4
  • Plate 1 x 2 Reddish Brown Part 3023 Element 4211150 ×2
  • Plate 2 x 12 Reddish Brown Part 2445 Element 4225700 ×1
  • Plate 2 x 4 Reddish Brown Part 3020 Element 4211186 ×2
  • Plate 2 x 6 Reddish Brown Part 3795 Element 4211247 ×2
  • Plate 2 x 8 Reddish Brown Part 3034 Element 4211211 ×1
  • Support Round 1 x 1 x 6 Solid Pillar Reddish Brown Part 43888 Element 4520612 ×6
  • Tile 2 x 2 with Groove Reddish Brown Part 3068b Element 4271949 or 4264030 ×1

Dark Bluish Gray 35 pieces

  • Brick 2 x 6 Dark Bluish Gray Part 2456 Element 4282819 or 4210875 ×1
  • Brick Curved 1 x 2 x 1 1/3 with Curved Top Dark Bluish Gray Part 6091 Element 6411327 or 4210797 ×2
  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Bluish Gray Part 54200 Element 4504378 or 4244373 1 spare in the box ×2
  • Brick Special 2 x 2 with Pin and Axle Hole Dark Bluish Gray Part 6232 Element 6408023 or 4211046 ×2
  • Dish 3 x 3 Inverted [Radar] Dark Bluish Gray Part 43898 Element 4210865 ×2
  • Plate 2 x 2 Dark Bluish Gray Part 3022 Element 4211094 Also in Black ×3
  • Plate 2 x 4 Dark Bluish Gray Part 3020 Element 4211065 ×2
  • Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening) Dark Bluish Gray Part 4032a Element 4211042 ×2
  • Plate Round 2 x 2 with Rounded Bottom [Boat Stud] Dark Bluish Gray Part 2654 Element 4613980 or 4278274 ×1
  • Plate Special 1 x 1 with Clip Horizontal [Thick U Clip] Dark Bluish Gray Part 6019 Element 4216973 ×2
  • Technic Axle 1.5 with Perpendicular Axle Connector (Technic Pole Reverser Handle) Dark Bluish Gray Part 6553 Element 4210665 ×2
  • Technic Axle Connector Smooth [with x Hole + Orientation] Dark Bluish Gray Part 59443 Element 6084613 or 4516546 ×1
  • Technic Axle and Pin Connector Perpendicular Dark Bluish Gray Part 6536 Element 6536199 or 6261374 ×6
  • Technic Brick 1 x 2 [1 Pin Hole] Dark Bluish Gray Part 3700 Element 4211111 ×3
  • Technic Brick 1 x 6 [5 Pin Holes] Dark Bluish Gray Part 3894 Element 4210917 or 3894199 ×1
  • Tool Chainsaw Blade Dark Bluish Gray Part 6117 Element 6166069 or 4211048 ×1
  • Wedge Plate 4 x 4 Cut Corner Dark Bluish Gray Part 30503 Element 4210728 ×2

Blue 19 pieces

  • Technic Axle Pin with Friction Ridges Lengthwise Blue Part 43093 Element 4309323 or 4206482 ×6
  • Technic Pin 1/2 without Friction Ridges Blue Part 4274 Element 4143005 2 spares in the box ×10
  • Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots Blue Part 6558 Element 4514553 ×3

[No Color/Any Color] 11 pieces

  • Sticker Sheet for Set 2520-1 [No Color/Any Color] Part 95288 Element 4619740 ×1
  • Trading Card, Ninjago Deck #1: 14 - Cole DX - North American Version [No Color/Any Color] Part 4621850 ×1
  • Trading Card, Ninjago Deck #1: 20 - Magnetize - North American Version [No Color/Any Color] Part 4621828 ×1
  • Trading Card, Ninjago Deck #1: 34 - Throwing Star - North American Version [No Color/Any Color] Part 4621813 ×1
  • Trading Card, Ninjago Deck #1: 39 - Karate Chop - North American Version [No Color/Any Color] Part 4621845 ×1
  • Trading Card, Ninjago Deck #1: 43 - Limbo - North American Version [No Color/Any Color] Part 4621841 ×1
  • Trading Card, Ninjago Deck #1: 51 - Throwing Star - North American Version [No Color/Any Color] Part 4621833 ×1
  • Trading Card, Ninjago Deck #1: 69 - Off Balance - North American Version [No Color/Any Color] Part 4621817 ×1
  • Trading Card, Ninjago Deck #1: 70 - Rock Block - North American Version [No Color/Any Color] Part 4621835 ×1
  • Trading Card, Ninjago Deck #1: 73 - Safeguard - North American Version [No Color/Any Color] Part 4621831 ×1
  • Trading Card, Ninjago Deck #1: 9 - Bonezai - North American Version [No Color/Any Color] Part 4621839 ×1

Pearl Gold 8 pieces

  • Animal Body Part, Dog Bone [Long] Pearl Gold Part 92691 Element 4600309 ×1
  • Bar 1L with Top Stud and Two Side Studs Pearl Gold Part 92690 Element 6328909 or 4640843 ×1
  • Chain 6L [5 Links] Pearl Gold Part 92338 Element 6323688 or 4600501 ×1
  • Large Figure Weapon Spiked Ball, Thornax Fruit with Black Band Pearl Gold Part 64277c01 Element 4546585 ×1
  • Turntable 6 x 6 Round Red Base with Pearl Gold Top with Gold Faces on Black Print (Ninjago Spinner) Pearl Gold Part 92547pr0009 Element 4613395 ×1
  • Weapon Axe Head, Clip-on (Viking) [Thin Clip] Pearl Gold Part 53705 ×1
  • Weapon Sword / Katana / Shamshir with Uncapped Pommel [Square Guard] Pearl Gold Part 30173b Element 4505215 ×1
  • Weapon Sword / Scimitar Notched Blade Pearl Gold Part 60752 Element 4600296 ×1

Dark Purple 5 pieces

  • Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) Dark Purple Part 54200 Element 4567509 or 4255409 1 spare in the box ×2
  • Cone 2 x 2 x 2, Open Stud Dark Purple Part 3942c Element 6596908 or 6064621 ×3

Flat Silver 4 pieces

  • Launcher, Large Figure Weapon, Zamor Sphere Launcher, with Hole and Axle Hole Flat Silver Part 64275 Element 4609595 ×2
  • Weapon Pike / Spear Round End Flat Silver Part 4497 ×1
  • Weapon Sword / Katana / Shamshir with Uncapped Pommel [Square Guard] Flat Silver Part 30173b Element 4569471 ×1

Tan 3 pieces

  • Cone 1 x 1 [Top Groove] Tan Part 59900 Element 4529237 ×3

Trans-Clear 3 pieces

  • Glass for Window 1 x 4 x 6 with Asian/Japanese Characters 'Ninja' on White Background Print Trans-Clear Part 57895pr0001 Element 6030347 or 4639781 ×3

Trans-Red 2 pieces

  • Dish 2 x 2 Inverted [Radar] Trans-Red Part 4740 Element 6580377 or 6245303 ×2

Lime 1 piece

  • Brick 1 x 2 Lime Part 3004 Element 4613965 or 4164022 ×1

Minifigures 2 figures

  • Cole DX Minifigure, checked as a whole figure ×1
  • Bonezai - 3626b Head 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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