71804

LEGO Ninjago set 71804, Arin's Battle Mech, depicts a combat mech for Arin in the ninja setting. Released in 2024, it contains 104 pieces and belongs to the Ninjago theme, with a compact build focused on action play.

Arin's Battle Mech puts Arin at the centre of a Ninjago conflict, using a battle mech as the main build. The set is assigned to the Ninjago theme, with no further subtheme stated in the supplied data. Its subject is a direct confrontation between a ninja character and a masked opponent.

The set contains 104 pieces and 2 named minifigures: Wolf Mask Warrior, Shoulder Pads and Arin, Ninja Headwrap. The French retail title refers to Arin with a mini katana and robots, so the contents are framed around a small action scene. The provided source does not give confirmed details about articulation, launchers or other specific play functions.

This set is best understood as a play focused Ninjago model built around Arin, while also serving collectors who want the listed characters and a small mech. Within the broader theme, it sits as a compact companion build for expanding scenes rather than as a large standalone display model.