Introduction
This instruction manual provides detailed guidance for assembling and understanding the features of your LEGO NINJAGO Hydro Bounty 71756 building set. Designed for builders aged 9 and above, this set allows you to construct a detailed submarine toy with various interactive elements and minifigures from the NINJAGO: Seabound TV series. Please read through these instructions carefully to ensure a complete and enjoyable building experience.
Setup and Assembly
The LEGO NINJAGO Hydro Bounty set consists of 1159 pieces. Assembly is a step-by-step process that requires attention to detail. Follow the included visual instructions provided in your physical LEGO box to connect each brick correctly. Organize your pieces by color and size before beginning to streamline the building process.

Image: An overview of the 1159 LEGO pieces for the Hydro Bounty set, demonstrating the scale of the building experience.
The building process is designed to be engaging and educational, promoting fine motor skills and problem-solving. Take your time and ensure each connection is secure.
Operating Features
The Hydro Bounty is equipped with several interactive features for dynamic play:
- Spring-Loaded Shooters: The submarine features two spring-loaded shooters. Load the projectiles and press the trigger mechanism to launch them.
- Folding Wings: The Hydro Bounty includes folding wings that can be adjusted for different play scenarios, enhancing its maneuverability in imaginative underwater battles.
- Opening Cockpit: The cockpit opens to allow placement of minifigures inside, providing a command center for your ninja heroes.
- Detachable Mech: A smaller, buildable mech toy can be detached from the main submarine, offering additional play options and allowing for separate missions.
- Mini-Submarines: Two mini-submarine toys are included, designed to be carried by the Hydro Bounty for reconnaissance or support missions.
- Minifigures: The set includes 10 minifigures: Scuba Kai, Scuba Nya, Scuba Zane, Scuba Jay, Scuba Cole, Scuba Lloyd, Prince Kalmaar, a Maaray Guard, and two Wu Bots. Each comes with unique accessories and diving gear.

Image: The Hydro Bounty's detachable mech, illustrating its transformation from a compact unit to a standing robot.

Image: A display of the 10 minifigures included with the set, showcasing both ninja heroes and their adversaries.
Video: An official demonstration of the LEGO NINJAGO Hydro Bounty 71756 Building Kit, highlighting its key features and play possibilities.
Maintenance
To ensure the longevity and appearance of your LEGO Hydro Bounty set, follow these maintenance guidelines:
- Cleaning: Use a soft brush or a damp cloth with mild soap and water to clean the bricks. Avoid harsh chemicals or abrasive materials, as these can damage the plastic.
- Storage: Store the assembled model or individual bricks in a cool, dry place away from direct sunlight to prevent discoloration and warping.
- Handling: Handle the model with care, especially when moving it, to prevent pieces from detaching.
Troubleshooting
If you encounter any issues during assembly or play, consider the following:
- Missing Pieces: In the rare event of missing pieces, please refer to the official LEGO customer service website. They provide a service for requesting replacement parts directly.
- Loose Connections: Ensure that all bricks are firmly pressed together. Sometimes, a loose connection can cause instability in the model.
- Assembly Errors: If a section of the model does not look correct, carefully retrace your steps in the instruction manual to identify any missed or incorrectly placed bricks.
Specifications
| Attribute | Detail |
|---|---|
| Model Number | 71756 |
| Number of Pieces | 1159 |
| Item Dimensions (L x W x H) | 22.91 x 14.88 x 3.43 inches |
| Item Weight | 5.3 Pounds |
| Material Type | Plastic |
| Age Range Description | 9 Years and Above |
| Included Components | LEGO Building Elements |
Warranty and Support
LEGO products are manufactured to high-quality standards. For any issues regarding missing or defective parts, please visit the official LEGO Customer Service website. You can typically request replacement parts directly from their support portal. Keep your instruction manual and product packaging for reference.
For further assistance, you may visit the LEGO Store on Amazon.





