Kids 9 years old and up can dive into action with the LEGO DREAMZzz Nightmare Shark Submarine (71500) building toy. Young dreamcrafters can join Mateo, Logan, and Astrid in epic pretend play battles. Young dreamers are in the captain's chair as they build, deciding whether to create a stealth shark submarine equipped with a secret prison compartment or unleash a mighty hammerhead shark battleship toy. Detachable mini flying aircraft, stud shooters, and missiles can actually fire from the shark's fearsome mouth! A cast of minifigures, including Mateo, Logan, Astrid, Dreamsmasher, and dreamer are joined by Z-Blob and three Cyberling figures to bring the action to life and fuel creative role play. The same modular shooters that help kids create their submarine or battleship can also connect with other building sets in the LEGO DREAMZzz 2025 collection (each set sold separately) for storytelling that goes beyond the build. This aquatic action building set makes a cool gift for boys and girls who love imaginative play and the LEGO DREAMZzz universe. Story-led building instructions with comic-style illustrations, along with the LEGO Builder app, pull kids right into the action while encouraging creative decision-making skills. Contains 1,413 pieces.