8+ Ages. 325 Pieces. Building Instructions. Warning! Small parts. LEGO® Sonic the Hedgehog #76998. Knuckles and the Master Emerald Shrine. Action and adventure with Knuckles and Amy. Thrill Sonic the Hedgehog fans with a LEGO® buildable set that boosts independent adventure play with iconic characters. Help Knuckles defend the Master Emerald Shrine. Kids can choose different ways to protect the Chaos Emeralds on Angel Island and rescue the Picky from the villainous Badnik. Work out on a rotating floor. Spin Knuckles on the rotating floor to practice his boxing. Launch grapes in the catapult. Help Amy launch grapes at the Badnik using the catapult toy. Posable Eggrobo with launcher. The character has a working stud launcher and movable arms. Enter a digital world of building. Builders can zoom in, rotate sets in 3D and track their progress using the fun, intuitive LEGO® Builder app. Adventure video gaming gift for ages 8 and over. The collectible set includes an island with a cave, a catapult toy, 4 Chaos Emeralds, a hammer, 4 characters and much more.