Very good
The advantages of this toy are: endless fun, a fun design, and good quality. However, I find the following disadvantages: small parts.
Retailer prices for 70731 are sorted by the latest lowest price.
Retailer pricesWe check Dutch retailers every day. This graph shows the full daily-low price series we have for this set.
Daily lowest price tracked across 1 Dutch retailers. The dotted line marks LEGO's recommended retail price.
Source: daily measurement at 1 Dutch retailers, 15 Dec 2025 – 9 Feb 2026. RRP via LEGO.com.
| Date | Price | Retailer | Stock |
|---|---|---|---|
| €148,75 | Bol.com | In stock | |
| €148,75 | Bol.com | In stock | |
| €148,75 | Bol.com | In stock | |
| €148,75 | Bol.com | In stock | |
| €148,75 | Bol.com | In stock | |
| €148,75 | Bol.com | In stock | |
| €148,75 | Bol.com | In stock | |
| €148,75 | Bol.com | In stock | |
| €148,75 | Bol.com | In stock | |
| €148,75 | Bol.com | In stock | |
| €148,75 | Bol.com | In stock | |
| €148,75 | Bol.com | In stock |
Calibrated forecast based on historical pricing, seasonal patterns and retailer behavior. Tuned conservatively: rather cautious than optimistic.
Signal is mixed. Small movements are more likely than a big drop.
What to know about LEGO 70731 before you buy.
Beat the Ghost Ninja to the Aeroblade in Jay Walker One! Accelerate to the haunted gateway in the Jay Walker One and seize the Aeroblade! Fold out the lightning cannon to open up the ghost prison. Capture ghost discs fired from the haunted gateway and shoot them back at Blade Master Bansha and his Ghost Warriors. Capture the ghosts in the prison and fight off the Skreemer who is trying to turn Jay into a ghost. You must get that Aeroblade and conquer the evil Ghost Ninja! Includes 4 minifigures with assorted weapon elements and an accessory element: Jay, Blade Master Bansha, Ghost Warrior Ghurka and Ghost Warrior Wail. * Includes 4 minifigures with assorted weapon elements and an accessory element: Jay, Blade Master Bansha, Ghost Warrior Ghurka and Ghost Warrior Wail * Jay Walker One features big wheels, foldout disc-shooting lightning cannon, ghostly green discs, disc storage chest and an opening ghost prison * Haunted gateway features a ghost disc shooter, ghost disc storage and the detachable Aeroblade * Also includes a Skreemer (attachable to minifigures) * Weapon elements include Bansha’s double-ended Ghost Master blade, Ghurkha’s crossbow with arrows and Wail’s Ghost Ninja Kamas * Includes the Ghurka’s quiver element * Ghurka and Wail minifigures feature transparent ghost legs and ghost armor * Blade Master minifigure features a ghost tail (new for fall 2015) * Fold out the Jay Walker One’s hidden lightning cannon to open the ghost prison * Fire discs at Bansha and the Ghost Warriors * Dodge ghost discs fired from the haunted gateway * Grab the Aeroblade and defeat the Ghost Ninja * Recreate your favorite scenes from the NINJAGO™: Masters of Spinjitzu TV show * Jay Walker One measures over 5” (13cm) high, 9” (25cm) long and 5” (13cm) wide * Haunted gateway measures over 3” (10cm) high, 5” (13cm) wide and 1” (3cm) deep
All about this set
Background, build experience, collector context, and buying notes in one story.
Beat the Ghost Ninja to the Aeroblade in Jay Walker One! Accelerate to the haunted gateway in the Jay Walker One and seize the Aeroblade! Fold out the lightning cannon to open up the ghost prison. Capture ghost discs fired from the haunted gateway and shoot them back at Blade Master Bansha and his Ghost Warriors. Capture the ghosts in the prison and fight off the Skreemer who is trying to turn Jay into a ghost. You must get that Aeroblade and conquer the evil Ghost Ninja! Includes 4 minifigures with assorted weapon elements and an accessory element: Jay, Blade Master Bansha, Ghost Warrior Ghurka and Ghost Warrior Wail. * Includes 4 minifigures with assorted weapon elements and an accessory element: Jay, Blade Master Bansha, Ghost Warrior Ghurka and Ghost Warrior Wail * Jay Walker One features big wheels, foldout disc-shooting lightning cannon, ghostly green discs, disc storage chest and an opening ghost prison * Haunted gateway features a ghost disc shooter, ghost disc storage and the detachable Aeroblade * Also includes a Skreemer (attachable to minifigures) * Weapon elements include Bansha’s double-ended Ghost Master blade, Ghurkha’s crossbow with arrows and Wail’s Ghost Ninja Kamas * Includes the Ghurka’s quiver element * Ghurka and Wail minifigures feature transparent ghost legs and ghost armor * Blade Master minifigure features a ghost tail (new for fall 2015) * Fold out the Jay Walker One’s hidden lightning cannon to open the ghost prison * Fire discs at Bansha and the Ghost Warriors * Dodge ghost discs fired from the haunted gateway * Grab the Aeroblade and defeat the Ghost Ninja * Recreate your favorite scenes from the NINJAGO™: Masters of Spinjitzu TV show * Jay Walker One measures over 5” (13cm) high, 9” (25cm) long and 5” (13cm) wide * Haunted gateway measures over 3” (10cm) high, 5” (13cm) wide and 1” (3cm) deep
When current prices are available, buying context appears here.
Instructions & specifications
Dimensions, pieces, build steps, and the official PDF building instruction.
Parts inventory
Known set data around pieces and build context.
Technic Pins
Technic Pin with Friction Ridges Lengthwise and Center Slots
Part ID 2780 · Black
Qty 16
Technic Pin 1/2
Part ID 4274 · Blue
Qty 8
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle
Part ID 11214 · Dark Bluish Gray
Qty 2
Technic Axle Pin with Friction Ridges Lengthwise
Part ID 43093 · Blue
Qty 2
Technic Pin with Friction Ridges Lengthwise and Towball
Part ID 6628 · Black
Qty 2
Plates Special
Plate Special 1 x 2 with 1 Stud with Groove and Inside Stud Holder (Jumper)
Part ID 15573 · Dark Blue
Qty 14
Plate Special 1 x 1 with Clip Vertical [Thick U Clip]
Part ID 4085c · Black
Qty 4
Bracket 1 x 2 - 2 x 2 Inverted
Part ID 99207 · Black
Qty 4
Plate Special 2 x 2 with 1 Pin Hole [Complete Underside Rib]
Part ID 10247 · Red
Qty 2
Plate Special 1 x 2 with Pin Hole on Top
Part ID 11458 · Dark Bluish Gray
Qty 2
Plate 2 x 2 with 2 Pins
Part ID 15092 · Dark Bluish Gray
Qty 2
Bracket 1 x 2 - 2 x 2
Part ID 44728 · Blue
Qty 2
Bracket 1 x 2 - 2 x 2
Part ID 44728 · Light Bluish Gray
Qty 2
Plate Special 1 x 1 with Tooth
Part ID 49668 · Black
Qty 2
Plate Special 1 x 2 [Top Clip]
Part ID 92280 · Red
Qty 2
Plate Special 1 x 4 with 2 Studs
Part ID 92593 · Light Bluish Gray
Qty 2
Bracket 1 x 2 - 1 x 2
Part ID 99781 · White
Qty 2
Plate Special 1 x 2 [Side Handle Closed Ends]
Part ID 48336 · Pearl Gold
Qty 1
Plate Special 1 x 2 with Handle on End [Closed Ends]
Part ID 60478 · Dark Bluish Gray
Qty 1
Plate Special 1 x 2 with Clip Horizontal on End
Part ID 63868 · Light Bluish Gray
Qty 1
Plates
Plate 1 x 4
Part ID 3710 · Dark Bluish Gray
Qty 9
Plate 1 x 2
Part ID 3023 · Reddish Brown
Qty 8
Plate 2 x 4
Part ID 3020 · Light Bluish Gray
Qty 6
Plate 2 x 2
Part ID 3022 · Blue
Qty 6
Plate 1 x 6
Part ID 3666 · Black
Qty 5
Plate 2 x 3
Part ID 3021 · Dark Blue
Qty 4
Plate 2 x 8
Part ID 3034 · Dark Bluish Gray
Qty 4
Plate 6 x 8
Part ID 3036 · Dark Tan
Qty 3
Plate 1 x 8
Part ID 3460 · Light Bluish Gray
Qty 2
Plate 1 x 3
Part ID 3623 · Tan
Qty 2
Plate 1 x 6
Part ID 3666 · Dark Blue
Qty 2
Plate 2 x 6
Part ID 3795 · Black
Qty 2
Plate 2 x 10
Part ID 3832 · Light Bluish Gray
Qty 2
Plate 2 x 4
Part ID 3020 · Dark Tan
Qty 1
Plate 4 x 8
Part ID 3035 · Black
Qty 1
Plate 2 x 10
Part ID 3832 · Black
Qty 1
Plate 1 x 10
Part ID 4477 · Black
Qty 1
Plates Round Curved and Dishes
Plate Round 2 x 2 with Axle Hole Type 1 (+ Opening)
Part ID 4032a · Tan
Qty 8
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Yellowish Green
Qty 5
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Pearl Gold
Qty 5
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Green
Qty 4
Plate Round 2 x 2 with Rounded Bottom [Boat Stud]
Part ID 2654 · Blue
Qty 3
Plate Round Corner 4 x 4
Part ID 30565 · Dark Tan
Qty 3
Plate Round 1 x 1 with Solid Stud
Part ID 6141 · Trans-Light Blue
Qty 1
Bricks Sloped
Slope 30° 1 x 1 x 2/3 (Cheese Slope)
Part ID 54200 · Pearl Gold
Qty 8
Slope Inverted 45° 4 x 2 Double with 2 x 2 Recessed
Part ID 4871 · Dark Blue
Qty 4
Slope 18° 2 x 1 x 2/3 with 4 Slots / Grate
Part ID 61409 · Blue
Qty 4
Slope 30° 1 x 2 x 2/3
Part ID 85984 · Blue
Qty 4
Slope 45° 2 x 1 Triple with Inside Stud Holder
Part ID 15571 · Dark Bluish Gray
Qty 3
Slope 45° 2 x 1 with 2/3 Cutout [New Version]
Part ID 15672 · Blue
Qty 2
Slope 33° 3 x 2
Part ID 3298 · Yellow
Qty 1
Slope 65° 2 x 1 x 2
Part ID 60481 · Dark Blue
Qty 1
Bricks Curved
Brick Curved 1 x 2 x 1 1/3 with Curved Top
Part ID 6091 · Black
Qty 6
Slope Curved 2 x 2 x 2/3
Part ID 15068 · Black
Qty 4
Brick Curved 2 x 2, Two Top Studs
Part ID 30165 · Dark Bluish Gray
Qty 3
Brick Curved 6 x 1 Inverted
Part ID 42023 · Dark Bluish Gray
Qty 2
Slope Curved 3 x 1 No Studs
Part ID 50950 · Dark Blue
Qty 2
Slope Curved 4 x 1 Double with No Studs
Part ID 93273 · Blue
Qty 2
Slope Curved 4 x 1 No Studs [Stud Holder with Symmetric Ridges]
Part ID 11153 · Dark Blue
Qty 1
Tiles Round and Curved
Tile Round 2 x 2 with Bottom Stud Holder
Part ID 14769 · Pearl Gold
Qty 2
Tile Round 1 x 1
Part ID 98138 · Trans-Red
Qty 2
Tile Round 1 x 1
Part ID 98138 · Trans-Yellow
Qty 1
Technic Bricks
Technic Brick 1 x 2 with Axle Hole Type 1 [+ Opening] and Bottom Pin
Part ID 32064a · Black
Qty 5
Technic Brick 1 x 10 [9 Pin Holes]
Part ID 2730 · Black
Qty 4
Technic Brick 1 x 4 [3 Pin Holes]
Part ID 3701 · Black
Qty 2
Technic Brick 6 x 8 with 4 x 6 Opening
Part ID 32532 · Light Bluish Gray
Qty 1
Tiles
Tile 1 x 8 with Groove
Part ID 4162 · Black
Qty 5
Tile 1 x 3
Part ID 63864 · Light Bluish Gray
Qty 5
Tile 1 x 2 with Groove
Part ID 3069b · Trans-Red
Qty 3
Tile 1 x 6 with Groove
Part ID 6636 · Dark Bluish Gray
Qty 3
Tile 1 x 4 with Groove
Part ID 2431 · Blue
Qty 2
Tile 1 x 2 with Groove
Part ID 3069b · Yellow
Qty 2
Tile 2 x 2 with Groove
Part ID 3068b · Light Bluish Gray
Qty 1
Tile 1 x 2 with Groove
Part ID 3069b · Trans-Light Blue
Qty 1
Animal / Creature Body Parts
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Large
Part ID 11089 · Black
Qty 4
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small
Part ID 53451 · Yellow
Qty 3
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small
Part ID 53451 · Yellowish Green
Qty 2
Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Medium
Part ID 87747 · Black
Qty 2
Tiles Special
Tile Round 2 x 2 with Hole
Part ID 15535 · Red
Qty 4
Tile Special 1 x 1 with Clip with Rounded Edges
Part ID 15712 · Pearl Gold
Qty 3
Tile Special 1 x 2 Grille with Bottom Groove
Part ID 2412b · Pearl Gold
Qty 1
Tile Special 1 x 2 with Handle
Part ID 2432 · Reddish Brown
Qty 1
Wheels and Tyres
Wheel Hard Plastic Large (54mm D. x 30mm)
Part ID 2515 · Black
Qty 4
Bricks
Brick 1 x 1
Part ID 3005 · Dark Bluish Gray
Qty 4
Brick 2 x 2 Corner
Part ID 2357 · Blue
Qty 2
Brick 2 x 4
Part ID 3001 · Red
Qty 1
Technic Axles
Technic Axle 4
Part ID 3705 · Black
Qty 4
Technic Axle 5.5 with Stop [Rounded Short End]
Part ID 59426 · Dark Bluish Gray
Qty 4
Technic Gears
Minifig Headwear
Hat, Conical Asian Style
Part ID 93059 · Pearl Gold
Qty 4
Minifig Lower Body
Leg Skeleton
Part ID 6266 · Black
Qty 3
Minifig Shields, Weapons, & Tools
Weapon Lightsaber Hilt with Bottom Ring
Part ID 64567 · Black
Qty 3
Weapon Sai
Part ID 98139 · Pearl Gold
Qty 2
Weapon Scythe / Crescent Blade Serrated with Bar
Part ID 98141 · Pearl Gold
Qty 2
Weapon Crossbow and Bolt
Part ID 2570 · Pearl Titanium
Qty 1
Panels
Panel 1 x 4 x 1 with Rounded Corners [Thin Wall]
Part ID 15207 · Black
Qty 2
Large Buildable Figures
Large Figure Limb Cover / Claw / Spike Large with Axle
Part ID 15362 · Pearl Gold
Qty 2
Projectiles / Launchers
Launcher, Brick Special 1 x 4 with Inside Clips (Disk Shooter) with Recessed Center 2 Studs
Part ID 16968 · Light Bluish Gray
Qty 2
Animals / Creatures
Animal, Scorpion
Part ID 30169 · Black
Qty 2
Technic Connectors
Technic Axle Connector with Axle Hole
Part ID 32039 · Yellow
Qty 2
Technic Axle Connector Smooth [with x Hole + Orientation]
Part ID 59443 · Yellow
Qty 1
Technic Beams
Technic Beam 1 x 9 Bent (7 - 3) Thick
Part ID 32271 · Black
Qty 2
Technic Beam 1 x 5 Thick
Part ID 32316 · Blue
Qty 2
Technic Beam 3 x 5 L-Shape Thick
Part ID 32526 · Light Bluish Gray
Qty 2
Supports, Girders and Cranes
Energy Effects
Wave / Lightning Angular, Double with Marbled Trans-Purple Pattern
Part ID 59233pat0001 · Trans-Light Blue
Qty 2
Bricks Special
Brick Special 1 x 2 with Masonry Brick Profile
Part ID 98283 · Dark Bluish Gray
Qty 2
Flags, Banners and Signs
Flag 2 x 2 Square, Flat Clip Edge [Thick Clips]
Part ID 11055 · Blue
Qty 1
Flag 2 x 2 Trapezoid with Flat Area between Clips
Part ID 44676 · Dark Blue
Qty 1
Containers
Box / Crate with Handholds 3 x 4 x 1 2/3
Part ID 30150 · Reddish Brown
Qty 1
Stickers
Plates Angled
Wedge Plate 3 x 6 Cut Corners
Part ID 2419 · Blue
Qty 1
Wedge Plate 2 x 4
Part ID 51739 · Light Bluish Gray
Qty 1
Bricks Round and Cones
Brick Round 2 x 2 Dome Top, Hollow Stud
Part ID 30367c · Pearl Gold
Qty 1
Brick Round 2 x 2 with Axle Hole
Part ID 3941 · Dark Blue
Qty 1
Cone 1 x 1 [Top Groove]
Part ID 59900 · Pearl Gold
Qty 1
Brick Round 2 x 2 Truncated Cone
Part ID 98100 · Black
Qty 1
Technic Steering, Suspension and Engine
Technic Link 1 x 6 without Stoppers
Part ID 32005a · Black
Qty 1
Technic Bushes
Technic Bush
Part ID 3713 · Red
Qty 1
Transportation - Land
Steering Stand 1 x 2 with Black Steering Wheel
Part ID 3829c01 · Black
Qty 1
Bars, Ladders and Fences
Bar 1L with Clip [Cut Edges and One Side Hole] [Gap in Clip]
Part ID 48729b · Black
Qty 1
Bar 6L with Stop Ring
Part ID 63965 · Pearl Gold
Qty 1
Bar 1L with Top Stud and Two Side Studs
Part ID 92690 · Pearl Gold
Qty 1
Windows and Doors
Door Frame 1 x 4 x 6 Type 2
Part ID 60596 · Black
Qty 1
Hinges, Arms and Turntables
Hinge Plate 1 x 4 Swivel Top / Base - Solid Clip [Complete Assembly]
Part ID 73983 · Black
Qty 1
Minifig Accessories
Equipment Whip - Bent
Part ID 88704 · Reddish Brown
Qty 1
Retailer reviews
Summarized retailer review data when available.
The advantages of this toy are: endless fun, a fun design, and good quality. However, I find the following disadvantages: small parts.
Great Ninjago toy, easy to assemble, typical LEGO. My son loves it.
Our son was very happy and surprised with this large box. Definitely recommended!!!!
All retailer prices
Current prices, stock and discounts per retailer.
Price context
Lowest, highest and average price for this set.
This context is based on 47 price points across 0 retailers. The chart on the page remains the full interactive source.
Price forecast
Conservative baseline for the next period.
The signal is mixed. Small movements are more likely than a large drop.
FAQ & set details
Pieces, year, RRP and retailer coverage.
Quick answers about price, stock and set data.