Set Facts
- The set includes 5 minifigures: Jay, Nya, Bone King, Bone Knight, and Bone Hunter, plus a Pixal Bot.
- Jay’s Titan Mech features a cockpit, a large dragon blade, 2 katana swords, and 2 shoulder-mounted shooters.
- A fast-firing double crossbow is mounted on a wagon and comes with 4 darts.
- Jay's Titan Mech was designed by LEGO designer Niek van Slagmaat.
Regional Retail Prices (LEGO.com/Store)
Jay's Titan Mech Reviews
Brick Fanatics
“71785 Jay’s Titan Mech’s sword is a substantial build using fresh brick designs and it is held in the mech’s hands using a single Technic pin. The options for posing in this mech appear to be abundant too with elbow and knee joints within a unique and lanky build. The sword... More isn’t the only source of new bricks in 71785 Jay’s Titan Mech as the Bone King, Bone Knight and Bone Hunter use new skeletal weapons and minifigure accessories.”
Rebrickable
“This is the first large Ninjago mech I've built, and I'm not disappointed. The size surprised me a bit. The limbs are sleek, making it look a lot smaller in photos, but next to a minifig you can see the true size better. The mech has a lot of joints, with moving hips, knees,... More feet, shoulders, elbows and hands”
Full review at rebrickable.com
Subtheme Analysis
Lifespan
21 mos (this set 23 mos)
Annual growth
+7.59% (this set +25.75%)
This set's annual growth (CAGR) vs. subtheme
Community Stats
Jay's Titan Mech currently ranks #10 out of the top most owned sets in Ninjago Core.
About Ninjago Core

The Ninjago Core theme is devoted to introducing young children into Ninjago by reimagining some of Ninjago's older concepts. Core introduced shorts called The Virtues of Spinjitzu that reused some concepts of this subtheme. Core sets are inspired by the original sets and recreates it in a new way with new characters and vehicles. Core is actually the third Ninjago subtheme, the first two being The LEGO Ninjago Movie and Ninjago Legacy.
Core consists of 23 sets that ran from 2022 to 2023. As of today,
71785 Jay's Titan Mech is the most valuable Core set with an estimated new/factory sealed value of $180.
Summary
Ninjago Core Jay's Titan Mech set 71785 was released in January 2023, retailing for $80, but has since been retired. New, unopened Jay's Titan Mech sets are valued at $180, while used sets can be found for $149.
Read more
Kids aged 9+ will enjoy playing out nonstop, gripping ninja action with this LEGO® NINJAGO® Jay’s Titan Mech (71785) building set. The posable toy mech features a cockpit on its chest for Jay, a large dragon blade, 2 katana swords and 2 shooters mounted on its shoulders.
5 minifigures for epic battles
This cool toy playset for kids includes 5 minifigures: ninja warriors Jay and Nya, who are each armed with a sword, and green bone warriors Bone King, Bone Knight and Bone Hunter, who have their own weapons from the green bone warrior assorted weapons pack, plus a fast-firing double crossbow loaded with 4 darts and mounted on a wagon. There is also a Pixal Bot.
Action-packed battle mech toy – LEGO® fans escape to NINJAGO® City for battles with this LEGO NINJAGO Jay’s Titan Mech (71785) set
5 minifigures – Ninja playset includes ninja warriors Jay and Nya for kids to stage battles against the Bone King, Bone Knight and Bone Hunter. There is also a Pixal Bot
Packed with...
Description provided by LEGO©