Can I build and play with set 71369 on its own?

Full functionality needs the interactive figure from a LEGO® Super Mario starter set, sold separately; as a static build, though, the fortress also works fine without it.

How many pieces does the Boss Battle Expansion Set have?

It has 1,010 pieces across 346 distinct shapes and colours.

Does the set include any minifigures?

No, it doesn't include any minifigures, since it's designed as an expansion for the interactive starter set.

Super Mario

Bowser's Castle Boss Battle Expansion Set

Set 71369 Bowser's Castle Boss Battle Expansion Set adds a boss-fight scene against Bowser to the LEGO® Super Mario line and came out in 2020. With 1,010 pieces and no minifigures of its own, it's designed as an add-on for the interactive starter set, which it connects to directly. This page lists every part and colour used in the build.

Set number: 71369
Year: 2020
Pieces: 1,010
Minifigures: 0
Theme: Super Mario
Different parts: 346

What can I build with it?

View the official building instructions at LEGO® ↗

Parts list 346

As BrickLink list (XML)

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

Spare parts (22)

These extra parts come with the set in case one gets lost.

Description

An expansion set, not a standalone build

Unlike many other LEGO® Super Mario sets, this model doesn't include any minifigures of its own; it relies instead on the interactive starter figure from the base set, sold separately. All 1,010 pieces go into building the battle scene itself, with elements such as movable obstacles and mechanisms surrounding Bowser. That focus makes the set a sensible pick for anyone who already owns a Super Mario starter set and wants to expand the collection with a new play scene. Because every piece goes toward the scenery, the fortress ends up more detailed overall than a comparable set that had to split its budget between minifigures and the surrounding environment.

Variety despite a tight colour palette

With 346 distinct parts built from a comparatively narrow set of colours – mainly black, light bluish grey, dark bluish grey and red – the emphasis clearly sits on shape variety rather than colourful surfaces. That combination suits the gloomy fortress theme while keeping mechanical details, such as traps or moving parts, from getting lost under too many colours. For a set just over 1,000 pieces, that high part-shape count points to plenty of functional rather than purely decorative elements. That shows up most clearly in the moving mechanisms, which need their own, often specialised pieces rather than being built from the same basic bricks repeated throughout.

Scale and its place in a wider collection

At just over 1,000 pieces, the Boss Battle Expansion Set ranks among the larger add-ons in the Super Mario line and takes several building sessions to bring the mechanism and scenery together. Since it isn't a standalone set, it only reaches its full potential alongside the starter set and other expansions, which combine to build out longer courses and larger scenes. The parts list below breaks down exactly which shapes and colours went into it. Builders who already own several expansion sets can also use that list to check where parts overlap between sets and spot good opportunities for their own combinations.

FAQ

Can I build and play with set 71369 on its own?: Full functionality needs the interactive figure from a LEGO® Super Mario starter set, sold separately; as a static build, though, the fortress also works fine without it.
How many pieces does the Boss Battle Expansion Set have?: It has 1,010 pieces across 346 distinct shapes and colours.
Does the set include any minifigures?: No, it doesn't include any minifigures, since it's designed as an expansion for the interactive starter set.