How many pieces does Ronin R.E.X. (70735) have?

The set contains 547 pieces and four minifigures.

Who is Ronin in the Ninjago story?

Ronin is a pirate and swordsman who faces off against the ninja during the Tournament of Elements storyline.

What colours define the mech?

Dark and light bluish grey form the frame, with red and black used for highlights at blades and joints.

Ninjago

Ronin R.E.X.

Ronin R.E.X. is the battle mech belonging to Ronin, the roguish pirate from Ninjago's Tournament of Elements storyline. The set uses 547 pieces and four minifigures to build an articulated fighting machine with a grabbing claw. Below is the complete parts list with every colour and shape used.

Set number: 70735
Year: 2015
Pieces: 547
Minifigures: 4
Theme: Ninjago
Different parts: 204

What can I build with it?

View the official building instructions at LEGO® ↗

Parts list 204

As BrickLink list (XML)

Import on BrickLink: Wanted → Upload, upload the file (or paste its content), pick a Wanted List and add the parts.

Minifigures 4

Ghost Ninja Attila / Ming / Spyder fig-0003684 pieces × 1
Ghost Scythe Master Ghoultar fig-0030086 pieces × 1
Ronin with Dark Red Hat (Possession) fig-0030646 pieces × 1
Kai in Deepstone Armor (Possession) fig-0030654 pieces × 1

Description

A mech built for a pirate duellist

Ronin is a recurring Ninjago character, a shady pirate and swordsman who fights the ninja with his own mechanical suit. R.E.X. is that machine, fitted with a moving claw arm and a blade for close combat. The angular, technical build with visible joints is typical of the mechs from this Ninjago season, and it looks quite different from the flowing dragon and serpent shapes seen in earlier sets. The overall silhouette reads more like a piece of armoured hardware than a creature. Ronin's morally grey role in the story also fits the wider Ninjago plot, where not every rival the ninja face is a straightforward villain.

547 pieces, four minifigures

At 547 pieces, the set sits toward the upper end of the mid-size range for Ninjago builds, with enough parts for a detailed, poseable model. The four minifigures allow for direct confrontations between Ronin and the ninja characters, complete with weapons and accessories for play scenes. That makes the set a reasonable fit both for careful building and for action-focused play afterwards, and the mech combines well with other vehicles and figures from the same wave.

Red, black and grey colour coding

Dark bluish grey and light bluish grey form the mech's technical framework, while black adds contrast at joints and drive parts. Red brings clear highlights, on blades, details and trim, making the machine instantly readable as Ronin's fighting suit. This colour mix also works well alongside other mechanical or robot-style builds if you're after parts for your own creations, particularly limbs, claws or armour plating in matching tones.

204 different part types

With 204 unique part types, Ronin R.E.X. is one of the more part-rich sets in its size class, reflecting the many technical elements, joints and armour panels that make up the mech. The parts list on this page breaks down every shape by colour and quantity, useful if you're hunting for specific Technic-style or joint pieces for a project of your own, whether that's another mech, a vehicle or a different mechanical build.

FAQ

How many pieces does Ronin R.E.X. (70735) have?: The set contains 547 pieces and four minifigures.
Who is Ronin in the Ninjago story?: Ronin is a pirate and swordsman who faces off against the ninja during the Tournament of Elements storyline.
What colours define the mech?: Dark and light bluish grey form the frame, with red and black used for highlights at blades and joints.